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Hertfordshire Plumber

Emergency Plumber Hertfordshire

A burst water pipe or an overflowing toilet can deal heavy damage to both your home and wallet. This scenario can be highly stressful and needs an immediate response. We provide emergency plumbing services in Hertfordshire which will involve immediately sending out one of our highly experienced and qualified plumbers to deal with the issue professionally and efficiently.

With years of experience in dealing with situations like these. Our emergency plumbers will guarantee that a solution to this traumatic situation is executed swiftly, helping to minimise damage caused and ensuring a more cost efficient repair.

Choosing Assert Plumbing will give you the best chance of damage minimisation, which will save you both time and money when dealing with the damaged caused by the ordeal.

Plumber Hertfordshire

Assert Plumbing is a trusted and well respected full service commercial and residential plumbing company in Hertfordshire. Our entire workforce is fully licensed and qualified to ensure that only the highest level of service is offered to our customers.

Bathroom Installer Hertfordshire

We ensure that the bathrooms we fit for our customers always attract the attention of their guests regardless of their budget. Our highly experienced bathroom fitters will make sure that your dream bathroom becomes a reality.

Plumbing Repairs Hertfordshire

Being a full service plumbing company. We are able to offer same day plumbing repairs or suggest informative advice on an alternative solution. Our services range from simple repairs such as leaks to full boiler repairs and everything in between.

Bathroom Installation Hertfordshire

We ensure that the bathrooms we fit for our customers always attract the attention of their guests regardless of their budget. Our highly experienced bathroom fitters will make sure that your dream bathroom becomes a reality.

Burst Water Pipes Hertfordshire

A burst water pipe can do serious damage to a property and if not dealt with promptly, can be highly expensive. We provide an emergency response service in Hertfordshire which will get one of our highly experienced plumbers out to you immediately to resolve the issue.

Pump Repairs Hertfordshire

We perform pump repairs in Hertfordshire to keep your central heating working at its optimal level. We are highly experienced and are familiar with 90% of models currently on the market. We carry most parts onboard and therefore can carry out simple repairs quickly and efficiently.

Pump Installation Hertfordshire

We perform pump installations in Hertfordshire to keep your central heating working at its optimal level. We are highly experienced and are familiar with 90% of models currently on the market. We carry most parts onboard meaning that we can install pumps both efficiently and to a high standard.

Tap Repairs Hertfordshire

In some cases, it can be more effective to replace a faulty tap instead of repair it. Our experienced engineers in Hertfordshire always provide our customers with knowledgeable and unbiased advice on which service best fits their needs.

Kitchen Sink Fitting Hertfordshire

Our highly skilled installers will professionally fit your sinks to the highest standard. From simple sinks to larger bespoke projects, our experienced personnel will have the expertise to provide you with excellent service.

Cold Water Tank Repairs Hertfordshire

A faulty cold water storage tank can sometimes leave your home without water. If yours is in need of repair or a replacement, our experienced plumbers are on hand to make sure that you get the right service for required.

Hot Water Tank Replacement Hertfordshire

When a hot water tank is not regulating your water correctly, its costing you money. Our gas safe registered engineers are trained to give you impartial advice on whether a repair or replacement is needed.

Immersion Tank Repairs Hertfordshire

When an immersion tank is not performing to its full ability, it is costing you money. Sometimes a build up of limescale can have detrimental effects on the tank’s efficiency. Our skilled engineers can carry out precise repairs and replacements, saving you money in the process.

Washing Machine Installation Hertfordshire

Our appliance team has a wealth of experience in and expertise when it comes to the installation of washing machines. We deal with practically every available brand meaning we can fit almost any machine both efficiently and professionally.

Dishwasher Installation Hertfordshire

Our appliance team has a wealth of experience in and expertise when it comes to the installation of Dishwashers. We deal with practically every available brand meaning we can fit almost any machine both efficiently and professionally.

Shower Repairs Hertfordshire

A faulty shower can not only leave you throwing money down the drain, but a damaged electric shower can also be a serious health hazard. Our Gas Safe registered plumbers can carry out a shower repair in Hertfordshire or a replacement if necessary.

Shower Installer Hertfordshire

Our installation team provide a full bathroom and shower installation service. We can install your bathroom, shower or wet room to your specific needs and requirements. We provide a high quality and attentive service at a competitive price.

What our customers say

We care what our customers think of us and love to hear your feedback, if you would like to know what we can do for your home or business give us a call today and we’ll be happy to help!

Great workmanship, friendly and helpful. Assert were fairly priced and trustworthy.
We had our boiler position moved as well as a new one installed. All our needs were met quickly and professionally. We will be sure to use them in the future. Can not recommend enough.

Simon Thompson

Fantastic service. I called the company to help in an emergency and they promptly arrived at the property and quickly identified the problem. Ryan was very knowledgable and understanding and we felt confident in his hands.
Thank you so much for a fabulous service

KatieM-592
Fantastic service

Ryan was responsive consistently to messages – a very key attribute when one has boiler issues! Shows he cares!

Will be engaging him again in the future. Very down to earth and helpful guy too. 🙂

Michael L

Assert Heating provided a very professional service, very clean and tidy i would recommend them 100%

Ahmet Djemal

Ryan did a routine service of our boiler. He was friendly, chatty and knowledgable. Would use the company again.

Hannah Winchester
Senake Hettiarachchi

Lee was super helpful and fast at fixing our heating!

Billie-rose Dell

Great workmanship, friendly and helpful. Assert were fairly priced and trustworthy.
We had our boiler position moved as well as a new one installed. All our needs were met quickly and professionally. We will be sure to use them in the future. Can not recommend enough.

Simon Thompson
Juliet Cochrane

Fantastic service! Quick response, boiler issue sorted quickly. Highly recommended.

tom370

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

samira

Thanks Ryan, for a fantastic job on the boiler conversion for our new house, pre-refurb!

Ryan was recommended to us by a good mutual friend, to check a redundant gas pipe that was randomly sticking out of the ground in what will be our living room area and ensure the gas supply was cut off and sound and then remove the eyesore of a pipe for us.

What I really like about how Ryan works is that he’s efficient, professional and really knows his job, and is a good communicator. He always returned my calls and answered any texts/questions within a short space of time, and this to me took the stress out of the whole process. To top it off he gave me a wholesome price on the boiler conversion and kept me well informed throughout the process.

On time, professional, experienced and excellent communication. All key attributes of a fantastic tradesman! Thank you Ryan, we will see you for our annual service and maintenance and highly recommend you to all our friends and family!

Best Wishes, Nita

N McEvoy

Great experience with Assert, can’t thank enough!

charlotte baird

Thanks Ryan, for a fantastic job on the boiler conversion for our new house, pre-refurb!

Ryan was recommended to us by a good mutual friend, to check a redundant gas pipe that was randomly sticking out of the ground in what will be our living room area and ensure the gas supply was cut off and sound and then remove the eyesore of a pipe for us.

What I really like about how Ryan works is that he’s efficient, professional and really knows his job, and is a good communicator. He always returned my calls and answered any texts/questions within a short space of time, and this to me took the stress out of the whole process. To top it off he gave me a wholesome price on the boiler conversion and kept me well informed throughout the process.

On time, professional, experienced and excellent communication. All key attributes of a fantastic tradesman! Thank you Ryan, we will see you for our annual service and maintenance and highly recommend you to all our friends and family!

Best Wishes, Nita

N McEvoy

Ryan came around to replace our old boiler with a new one as it had developed a fault that couldn’t be fixed. From the beginning he explained the issue with the existing one and arranged to fit a new one within 2 days. When installing, again Ryan explained everything we needed to know about the new boiler and also made sure everything was fully up and running before leaving. He also tidied up after himself so it looked like no one had been here! Highly recommended.

Sean McAvoy

I have used Ryan a couple of times and he is very professional knows his stuff no job to big or small he has every part needed for the job I can’t recommend him enough and will be passing his details on to friends and family and will not hesitate to call him again if I have anymore problems
a big thank you for reconnecting my cooker again
Grateful customer

Lele Williams

Ryan came to conduct a boiler service. He was punctual and informed me of his ETA prior to arriving. Showed me ID on arrival. Super polite and professional. Very knowledgeable. Respectful of COVID rules. I would highly recommend this trustworthy service. Thank you!

Claire Cortez

I found Assert by chance on Google last year as I needed a gas engineer to connect a gas cooked in a property I rent out. Ryan surpassed all my expectations of a fast and reliable service. He was very professional from the start and charges very fair prices. For this reason, I started calling Ryan whenever I have a problem in any of my properties I rent out and he’s always been very responsive and honest. Highly recommended!

Livia Marotti

II was very pleased with Ryan he was polite and professional and punctual and I would highly recommend the service
Kind regards
Mr D Webb

DannyW-237
Assert heating

Great service Ryan. Arrived on time, very friendly & sorted out the boiler problem efficiently. We’d definitely recommend your services.

Leroy Pitt

Great experience from Ryan and his team at Assert Heating Services. Showed up on time, were friendly and professional, sorted out my boiler at a reasonable price. Would recommend.

louise osborne

Really good work very professional.

KenK-37
Excellent

Very professional and fixed the issue with minimum fuss.

Bishu Debroy

💯 Reliable, hard working, friendly; kept smiling through the challenges.

Karen Brant

Great experience with Assert, can’t thank enough!

charlotte baird

Ryan was friendly, efficient and knowledgable. He serviced our Worcester Bosch boiler today.

Brian , NW11
Gas / Heating engineer
back beat

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

samira

Great service received from Ryan and Jamie – prompt response and quick and efficient completion of the job (gas supply check).
Would not hesitate to use Assert Heating Services again. Happy to recommend them.

George Hapeshi

Very quick, clear communication, highly recommend

Alastair , E17
Gas / Heating engineer

Thanks to Ryan for punctually arriving at my mum’s and quickly sorting boiler issue. My mum would have been without water and heating otherwise. Great value callout and great quality work. Will be using Assert every time now for future work. Chris

Chris Steele

Ryan carried out a service on our gas boiler and was very helpful and efficient.

BrigitteE-1
Gas boiler service

Ryan from Assert Heating Services arrived at the time promised and carried out the job very professionally and left the place spotless. Would recommend Ryan and his company for prompt and professional services without compromise. I have booked Ryan for annual boiler service which will be carried out this week.

Dinesh Sudra

Ryan came promptly when my boiler had problems and returned to carry out repairs at a mutually convenient time. excellent service

Michael Chrimes
J V

Our boiler broke down a week ago and Assert were quick to respond especially given the current circumstances. great value and service, cannot thank enough.
Cheers, all the best.

Omar El-sayed

Highly recommended local boiler service. Prompt, Respectful. Didn’t just come in to do the job but gave sound advice on the equipment and how to avoid incurring long term cost. Friendly and good customer service

NickA-280
Great Service

Great service Ryan. Arrived on time, very friendly & sorted out the boiler problem efficiently. We’d definitely recommend your services.

Leroy Pitt

Very good service and efficient .. they responded fast and it didn’t take much time to know what’s the problem and to fix it.
Thanks to Rayen and his team I highly recommend them

Mohamed Salem

Same day visit, quick repair, friendly, reasonable price

Jim Fisher

Cant recommend this guy enough, Assert Heating Services provided a great service during this difficult time. Ryan was professional and clear about the problem I had with my boiler. He took the time to talk me through and show me where the issue was. I didnt feel harrased, he let me think about replacing the boiler before I called him in to do the job. All in all, great job and I now have hot water again. Highly recommend.

helen georghiou

Great service Ryan. Arrived on time, very friendly & sorted out the boiler problem efficiently. We’d definitely recommend your services.

Leroy Pitt
Senake Hettiarachchi

Ryan was communicative and professional. He did a great job and went out of his way to help us. I’d recommend Assert Heating. Thanks Ryan!

JulietC-37
Great service
Katharine Walker

Lee was super helpful and fast at fixing our heating!

Billie-rose Dell
Laurence Hussey

Professional, efficient and friendly with lots of good advice – identified problem and fixed leak leaving everything clean and tidy – would highly recommend.
John & Marion London N11

MarionB-105
Highly recommend Assert Heating Services

Ryan was very polite and friendly . I would definitely use Assert heating again and due to professionalism. I would recommend them to others in the future.

Sandra Garbet

Ryan arrived in time, fixed our problem quickly, was very professional and friendly. We highly recommend him!

Guillaume Jolly

BEST SERVICE AROUND!!! Very responsive right on time and very competitive price. I recommend this firm to everyone without any doubt.

HuseyinB-2
BEST SERVICE AROUND!!!

Ryan has done several jobs for me and each time he has been knowledgable , courteous and punctual . Good clean job at a good price.

Nasim Belone
Ian Merrell

Contacted Assert Heating Services upon recommendation due to no heating or hot water at home. Within 24 hours Ryan attended, he was able to identify the issue and advise to cost and parts needed. Friendly, reliable and efficient service provided. Completed job to a high standard, will definitely use services again – highly recommended!

SelC
Fast, efficient, reliable and quality service !

We called Ryan on a recommendation to look at our hot water system which had stopped working. Ryan came as soon as he could and though the problem was a mystery he figured it out quickly and came back the next day with the right parts to fix. He was efficient, courteous and helpful. His price was fair and we will use him again. Thanks Ryan. Ina Norrman

Ina Norrman

Been using Ryan for all my heating and gas needs over the years.
He’s always prompt and carries out a good job.
Highly recommended.

Eric Ibekwem

Our boiler broke down a week ago and Assert were quick to respond especially given the current circumstances. great value and service, cannot thank enough.
Cheers, all the best.

Omar El-sayed

Cant recommend this guy enough, Assert Heating Services provided a great service during this difficult time. Ryan was professional and clear about the problem I had with my boiler. He took the time to talk me through and show me where the issue was. I didnt feel harrased, he let me think about replacing the boiler before I called him in to do the job. All in all, great job and I now have hot water again. Highly recommend.

helen georghiou

I phoned needing an emergency repair to my heating system and booked in a visit on the phone. Ryan was polite, on time and professional. He diagnosed a fault with my boiler and explained how to rectify it and what that would entail. We agreed there and then for the remedial works to be done. Ryan attended again with parts to fix my boiler and had my heating and hot water up and running again in no time. I have already booked another appointment to have my boiler and both gas fires serviced in a few months time. Both happy and relieved, I have finally found a reliable plumbing and heating engineer!

Rebecca C
David Wolgroch

Ryan from Assert Heating Services arrived at the time promised and carried out the job very professionally and left the place spotless. Would recommend Ryan and his company for prompt and professional services without compromise. I have booked Ryan for annual boiler service which will be carried out this week.

Dinesh Sudra

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

samira

Called Assert heating services regarding a radiator issue, Ryan was very helpful and come punctually to sort the issue in an efficient manner. Would highly recommend using Assert heating services in the future and would not hesitate to recommend to friends and family. Thank you very much!

Harry Tyerman

Ryan from Assert Heating Services came yesterday to do a full heating check. He was very knowledgeable and also suggested changing an old radiator to improve heat retention in a cold room. We’ll definitely have Ryan back to fit the new radiator and for future heating checks. I’ve already recommended Assert Heating services to a friend!

Lucy Simler

Speedy and efficient job at a fair price. Very satisfied

richard , CM20
Gas / Heating engineer

Thank you to Ryan at Assert Heating, he completed boiler service but noticed we had an issue with a leaking tap which we were waiting for a plumber to come and fix in a few days time but Ryan offered to cap it for us to save us money on our water bill. I would definitely use again and recommend.

Anthony Arbon

Thank you Assert Heating for your very quick response. Boiler issue was sorted quickly and professionally. Your engineer was polite and respectful of social distancing, wore gloves and mask. Fully recommend!

Elena Sophocleous

I’ve used Assert a few times now and each time I was impressed with how they conduct themselves before the job, during and after. The most recent experience was with Ryan who quoted me to replace a diverter valve on my very expensive Vailant boiler. Due to how much water was in the boiler which had to be drained, the job took a couple of hours but that had no bearing on the price or the professionalism whilst in my house. I know from experience others would have milked me for more money so I was pleased that again I paid the job quoted for and I definitely got what I paid for. Great experience with Assert and have no hesitation recommending them.

AndyC-2432
Quality work, honest price and very professional

Good price and good service. Maintenance is very fast.

Song Helen
Adrian Geaves

Recently used Assert after my usual plumber couldn’t come out quick enough for a burst pipe in one of my properties and am very glad I did. Assert were quick to respond and fixed the issue to a high standard in next to no time. Great service all round. Looks like Assert might be my new port of call for any emergencies.

DominicFirthProperty
Quick and professional during an emergency.

Fantastic service! Quick response, boiler issue sorted quickly. Highly recommended.

tom370

Arrived promptly. Able to fit in gas service quickly. Very professional. Good value for money. Trustworthy and reliable. Highly recommend

Mark Butterworth

Assert Heating provided a very professional service, very clean and tidy i would recommend them 100%

Arms Djemal

Came round on Monday and diagnosed the issue – we needed a new boiler, which we already knew as it had been knackered for a while. Ryan came back on Weds to replace and did a great job. Highly recommend.

Antony Berou

Thankyou Assert Heating for repairing our boiler. Your services were very professional.

G Dhanji

Great workmanship, friendly and helpful. Assert were fairly priced and trustworthy.
We had our boiler position moved as well as a new one installed. All our needs were met quickly and professionally. We will be sure to use them in the future. Can not recommend enough.

Simon Thompson

Thanks to Ryan for punctually arriving at my mum’s and quickly sorting boiler issue. My mum would have been without water and heating otherwise. Great value callout and great quality work. Will be using Assert every time now for future work. Chris

Chris Steele

Ryan was very polite and friendly . I would definitely use Assert heating again and due to professionalism. I would recommend them to others in the future.

Sandra Garbet

Thanks Ryan, for a fantastic job on the boiler conversion for our new house, pre-refurb!

Ryan was recommended to us by a good mutual friend, to check a redundant gas pipe that was randomly sticking out of the ground in what will be our living room area and ensure the gas supply was cut off and sound and then remove the eyesore of a pipe for us.

What I really like about how Ryan works is that he’s efficient, professional and really knows his job, and is a good communicator. He always returned my calls and answered any texts/questions within a short space of time, and this to me took the stress out of the whole process. To top it off he gave me a wholesome price on the boiler conversion and kept me well informed throughout the process.

On time, professional, experienced and excellent communication. All key attributes of a fantastic tradesman! Thank you Ryan, we will see you for our annual service and maintenance and highly recommend you to all our friends and family!

Best Wishes, Nita

N McEvoy

Our boiler broke down a week ago and Assert were quick to respond especially given the current circumstances. great value and service, cannot thank enough.
Cheers, all the best.

Omar El-sayed

Ryan came out on short notice as our boiler stopped working, he managed to diagnose the issue then sourced a replacement part and fitted it within a few hours, boiler has been working great since it was looked at a few weeks ago. Great service highly recommend!

Michael Drake
Katharine Walker

Lee was super helpful and fast at fixing our heating!

Billie-rose Dell

Ryan and Paul did a fantastic job installing a new boiler under pretty difficult conditions. Thank you for being so professional and leaving the flat clean and tidy. Wouldn’t hesitate to recommend you

Nicola Raw

Tennant reported that they had no hot water. I contacted AHS, Ryan, who attended, and by the next day two parts were replaced and hot water was up and running. All were happy with the great service provided

Brendon Ladd

A very prompt and professional service. Highly recommended. Would definitely use again.

christian oliver
Khalid Fahfouhi

Assert Heating provided a very professional service, very clean and tidy i would recommend them 100%

Ahmet Djemal

Very good service. On time friendly & efficient.
Leroy Pitter

LeroyP-6
Boiler repair. Excellent service

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

SamiraA-20
Professional, friendly and value for money

Ryan delivers solid, professional work in a friendly and very efficient manner. Extremely competent and keen to offer advice outside of the problem in hand – the mark of a serious and committed technician.

PeterL-1083
Boiler service and problem solving

Efficient friendly good quality service.

AliA-551
Highly commendable

Ryan from Assert Heating Services arrived at the time promised and carried out the job very professionally and left the place spotless. Would recommend Ryan and his company for prompt and professional services without compromise. I have booked Ryan for annual boiler service which will be carried out this week.

Dinesh Sudra

Cant recommend this guy enough, Assert Heating Services provided a great service during this difficult time. Ryan was professional and clear about the problem I had with my boiler. He took the time to talk me through and show me where the issue was. I didnt feel harrased, he let me think about replacing the boiler before I called him in to do the job. All in all, great job and I now have hot water again. Highly recommend.

helen georghiou

A very prompt and professional service. Highly recommended. Would definitely use again.

christian oliver

I had a boiler installed recently and would recommend their services! Reliable, honest and competitively priced.

Lyndsey Page

Ryan did a great job replacing my two old boilers, re-piping and installing an new eco Vaillant boiler. Arrived on time and all work completed in one day.

Spyros Spyrou
Adrian Geaves

Prompt reply, smooth communication.

khalid , E17
Gas / Heating engineer

Thank you to Ryan at Assert Heating, he completed boiler service but noticed we had an issue with a leaking tap which we were waiting for a plumber to come and fix in a few days time but Ryan offered to cap it for us to save us money on our water bill. I would definitely use again and recommend.

Anthony Arbon

Assert Heating provided a speedy service. Very professional and polite engineer who respected social distancing. Will definitely use again. Fully recommend

Elena Kounis Sophocleous

Great experience with Assert, can’t thank enough!

charlotte baird

After getting messed around i used Assert Heating and i was so glad i did! Ryan was very knowledgeable, Brilliant service, very helpful, efficient and friendly. Definitely recommend 5 stars. very satisfied

A & T Boyle
Senake Hettiarachchi

Ryan was very polite and friendly . I would definitely use Assert heating again and due to professionalism. I would recommend them to others in the future.

Sandra Garbet

Fantastic service! Quick response, boiler issue sorted quickly. Highly recommended.

tom370
Adrian Geaves

We have used Ryan for a few jobs over the years. Always provides a good service and cleans up after. Highly recommend him.

Maria Apostolou

Ryan was friendly and did a tidy job.
Thank you.

Gabriela Butt

Top professional service, they saved me and my family when our boiler stopped working, we didn’t have to wait long at all for them to come down and sort it, will definitely be using them again, i highly recommended.

Adam Smith

Assert Heating were responsive, quick to make an appointment and carried out the work professionally and cheerfully! I would recommend!

Mika Nash

Thank you Assert Heating for your very quick response. Boiler issue was sorted quickly and professionally. Your engineer was polite and respectful of social distancing, wore gloves and mask. Fully recommend!

Elena Sophocleous

Came the same day we called and repaired our boiler. Very friendly over the phone and in person. They provided a great service – I’m very satisfied! Thank you!

Turgay Altun

Thank you Assert Heating for your very quick response. Boiler issue was sorted quickly and professionally. Your engineer was polite and respectful of social distancing, wore gloves and mask. Fully recommend!

Elena Sophocleous

Thank you to Ryan at Assert Heating, he completed boiler service but noticed we had an issue with a leaking tap which we were waiting for a plumber to come and fix in a few days time but Ryan offered to cap it for us to save us money on our water bill. I would definitely use again and recommend.

Anthony Arbon

Ryan is a fantastic and reliable engineer. Great service, and would strongly recommend to anyone I know! I called Ryan, and he immediately attended my property

Simona Canalella
Charlie Findlater

A very prompt and professional service. Highly recommended. Would definitely use again.

christian oliver

Book an engineer

Get in touch with us today and book your next visit.

Heating Engineer Hertfordshire

Power Flushing Hertfordshire

Being Power Flushing specialists in Hertfordshire we can offer you a cost effective solution that will flush out your entire central heating system, making it run more efficiently and saving you money in the process.

Radiator Repairs Hertfordshire

Radiators are commonly the main heat source of rooms in the home. A radiator that isn’t performing efficiently will fail to keep you worm, as well as lead to needlessly high energy bills. Our experts can diagnose and fix 90% of radiators currently on the market and provide price friendly repairs when necessary.

Radiator Installation Hertfordshire

Many older boilers feature poor design flaws and are therefore incapable of adequately heating your home. We can install additional radiators to improve your heating system or replace old and faulty ones, both of which will save you money on energy bills. Our professional radiator installations in Hertfordshire mean we can position your radiators to best suit the room and furniture.

Heating Repairs Hertfordshire

At Assert Heating Services, we understand that heating and boiler problems often require immediate attention. We also however realize that most of our customers are wary of cost. Our Gas Safe heating engineers have a wealth of experience when it comes to boiler and heating repairs in Hertfordshire and we always provide our customer with unbiased advice on repairs versus replacement.

Hot Water Tank Replacement Hertfordshire

If your hot water tank is not hot water regulated in the way that it should, it’s costing you money. Our Gas Safe registered heating engineer will be on hand to provide you with unbiased advice on either a hot water tank repair in Hertfordshire or if a replacement is required.

Immersion Tank Repairs Hertfordshire

Living in an area with hard water can often lead to limescale build up in your system. This and over problems such as the heating element in your immersion tank ceasing to operate. Luckily our experienced engineers are on hand to carry out immersion tank repairs in Hertfordshire, saving our customers money.

Central Heating Installation Hertfordshire

At Assert Heating Services, we understand that heating and boiler problems often require immediate attention. We also however realize that most of our customers are wary of cost. Our Gas Safe registered experienced engineers can carry out swift central heating installations in Hertfordshire for all boilers

Vaillant & Worcester Bosch Boiler Repairs Hertfordshire

At Assert Heating Services, we understand that boiler problems often require immediate attention. We also know that most our customers are wary of cost. Our experienced Gas Safe engineers can carry out Vaillant and Worcester Bosch boiler and heating repairs in Hertfordshire and will always offer unbiased advice on whether a repair or replacement will be most suitable for your home in Hertfordshire.

Vaillant & Worcester Bosch Boiler Installation Hertfordshire

We are registered Worcester Bosch specialist installers. We are able to offer Warranty’s on all Vaillant & Worcester Bosch boiler installations as they are our preferred suppliers. Our experienced Gas Safe registered engineers can carry out Vaillant and Worcester Bosch Installations as well as a wide range of other suppliers in Hertfordshire.

Vaillant & Worcester Bosch Boiler Service Hertfordshire

At Assert Heating Services we know that your boiler is the heart of your central heating system. This makes regular boiler servicing an essential part of your properties maintenance. Our experienced, registered installers carry out Vaillant and Worcester Bosch boiler servicing in Hertfordshire. We can guarantee a same day fix or unbiased advice on the best alternative solution.

Shower Repairs Hertfordshire

Having a leaking shower in your home is a sure way to throw money down the drain, faulty electrical showers however can be a health hazard. Our experienced Gas Safe registered plumbers are on hand to provide either shower repairs or replacements in Hertfordshire.

Pump Installation Hertfordshire

Our experienced plumbers carry out pump installations in Hertfordshire to keep your central heating working as it should. We have experience installing 90% of models currently on the market and carry the majority of parts onboard so we are able to carry out simple repairs when required there and then, instead of a costly complete replacement.

What our customers say

We care what our customers think of us and love to hear your feedback, if you would like to know what we can do for your home or business give us a call today and we’ll be happy to help!

Thankyou Assert Heating for repairing our boiler. Your services were very professional.

G Dhanji

Ryan came around to replace our old boiler with a new one as it had developed a fault that couldn’t be fixed. From the beginning he explained the issue with the existing one and arranged to fit a new one within 2 days. When installing, again Ryan explained everything we needed to know about the new boiler and also made sure everything was fully up and running before leaving. He also tidied up after himself so it looked like no one had been here! Highly recommended.

Sean McAvoy

Thanks Ryan, for a fantastic job on the boiler conversion for our new house, pre-refurb!

Ryan was recommended to us by a good mutual friend, to check a redundant gas pipe that was randomly sticking out of the ground in what will be our living room area and ensure the gas supply was cut off and sound and then remove the eyesore of a pipe for us.

What I really like about how Ryan works is that he’s efficient, professional and really knows his job, and is a good communicator. He always returned my calls and answered any texts/questions within a short space of time, and this to me took the stress out of the whole process. To top it off he gave me a wholesome price on the boiler conversion and kept me well informed throughout the process.

On time, professional, experienced and excellent communication. All key attributes of a fantastic tradesman! Thank you Ryan, we will see you for our annual service and maintenance and highly recommend you to all our friends and family!

Best Wishes, Nita

N McEvoy

Prompt reply, smooth communication.

khalid , E17
Gas / Heating engineer

Thank you to Ryan at Assert Heating, he completed boiler service but noticed we had an issue with a leaking tap which we were waiting for a plumber to come and fix in a few days time but Ryan offered to cap it for us to save us money on our water bill. I would definitely use again and recommend.

Anthony Arbon

Thank you to Ryan at Assert Heating, he completed boiler service but noticed we had an issue with a leaking tap which we were waiting for a plumber to come and fix in a few days time but Ryan offered to cap it for us to save us money on our water bill. I would definitely use again and recommend.

Anthony Arbon

Ryan was friendly, efficient and knowledgable. He serviced our Worcester Bosch boiler today.

Brian , NW11
Gas / Heating engineer

Ryan from Assert Heating Services came yesterday to do a full heating check. He was very knowledgeable and also suggested changing an old radiator to improve heat retention in a cold room. We’ll definitely have Ryan back to fit the new radiator and for future heating checks. I’ve already recommended Assert Heating services to a friend!

Lucy Simler
David Wolgroch

Great experience with Assert, can’t thank enough!

charlotte baird

Thanks to Ryan for punctually arriving at my mum’s and quickly sorting boiler issue. My mum would have been without water and heating otherwise. Great value callout and great quality work. Will be using Assert every time now for future work. Chris

Chris Steele

We have used Ryan for a few jobs over the years. Always provides a good service and cleans up after. Highly recommend him.

Maria Apostolou

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

samira

Very good service and efficient .. they responded fast and it didn’t take much time to know what’s the problem and to fix it.
Thanks to Rayen and his team I highly recommend them

Mohamed Salem

Ryan was very polite and friendly . I would definitely use Assert heating again and due to professionalism. I would recommend them to others in the future.

Sandra Garbet

We called Ryan on a recommendation to look at our hot water system which had stopped working. Ryan came as soon as he could and though the problem was a mystery he figured it out quickly and came back the next day with the right parts to fix. He was efficient, courteous and helpful. His price was fair and we will use him again. Thanks Ryan. Ina Norrman

Ina Norrman

Assert Heating provided a very professional service, very clean and tidy i would recommend them 100%

Arms Djemal

A very prompt and professional service. Highly recommended. Would definitely use again.

christian oliver

Thank you to Ryan at Assert Heating, he completed boiler service but noticed we had an issue with a leaking tap which we were waiting for a plumber to come and fix in a few days time but Ryan offered to cap it for us to save us money on our water bill. I would definitely use again and recommend.

Anthony Arbon

Cant recommend this guy enough, Assert Heating Services provided a great service during this difficult time. Ryan was professional and clear about the problem I had with my boiler. He took the time to talk me through and show me where the issue was. I didnt feel harrased, he let me think about replacing the boiler before I called him in to do the job. All in all, great job and I now have hot water again. Highly recommend.

helen georghiou

Thanks to Ryan for punctually arriving at my mum’s and quickly sorting boiler issue. My mum would have been without water and heating otherwise. Great value callout and great quality work. Will be using Assert every time now for future work. Chris

Chris Steele

Been using Ryan for all my heating and gas needs over the years.
He’s always prompt and carries out a good job.
Highly recommended.

Eric Ibekwem

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

SamiraA-20
Professional, friendly and value for money

💯 Reliable, hard working, friendly; kept smiling through the challenges.

Karen Brant

Assert Heating were responsive, quick to make an appointment and carried out the work professionally and cheerfully! I would recommend!

Mika Nash
Senake Hettiarachchi

Lee was super helpful and fast at fixing our heating!

Billie-rose Dell

Lee was super helpful and fast at fixing our heating!

Billie-rose Dell

Great service received from Ryan and Jamie – prompt response and quick and efficient completion of the job (gas supply check).
Would not hesitate to use Assert Heating Services again. Happy to recommend them.

George Hapeshi

Great workmanship, friendly and helpful. Assert were fairly priced and trustworthy.
We had our boiler position moved as well as a new one installed. All our needs were met quickly and professionally. We will be sure to use them in the future. Can not recommend enough.

Simon Thompson

Cant recommend this guy enough, Assert Heating Services provided a great service during this difficult time. Ryan was professional and clear about the problem I had with my boiler. He took the time to talk me through and show me where the issue was. I didnt feel harrased, he let me think about replacing the boiler before I called him in to do the job. All in all, great job and I now have hot water again. Highly recommend.

helen georghiou
Adrian Geaves

Great experience with Assert, can’t thank enough!

charlotte baird

Great service Ryan. Arrived on time, very friendly & sorted out the boiler problem efficiently. We’d definitely recommend your services.

Leroy Pitt

Very good service. On time friendly & efficient.
Leroy Pitter

LeroyP-6
Boiler repair. Excellent service

Assert Heating provided a very professional service, very clean and tidy i would recommend them 100%

Ahmet Djemal

Great experience with Assert, can’t thank enough!

charlotte baird

Ryan arrived in time, fixed our problem quickly, was very professional and friendly. We highly recommend him!

Guillaume Jolly

Our boiler broke down a week ago and Assert were quick to respond especially given the current circumstances. great value and service, cannot thank enough.
Cheers, all the best.

Omar El-sayed

Highly recommended local boiler service. Prompt, Respectful. Didn’t just come in to do the job but gave sound advice on the equipment and how to avoid incurring long term cost. Friendly and good customer service

NickA-280
Great Service

I have used Ryan a couple of times and he is very professional knows his stuff no job to big or small he has every part needed for the job I can’t recommend him enough and will be passing his details on to friends and family and will not hesitate to call him again if I have anymore problems
a big thank you for reconnecting my cooker again
Grateful customer

Lele Williams

Ryan was friendly and did a tidy job.
Thank you.

Gabriela Butt

Ryan was very polite and friendly . I would definitely use Assert heating again and due to professionalism. I would recommend them to others in the future.

Sandra Garbet
Katharine Walker

Thanks Ryan, for a fantastic job on the boiler conversion for our new house, pre-refurb!

Ryan was recommended to us by a good mutual friend, to check a redundant gas pipe that was randomly sticking out of the ground in what will be our living room area and ensure the gas supply was cut off and sound and then remove the eyesore of a pipe for us.

What I really like about how Ryan works is that he’s efficient, professional and really knows his job, and is a good communicator. He always returned my calls and answered any texts/questions within a short space of time, and this to me took the stress out of the whole process. To top it off he gave me a wholesome price on the boiler conversion and kept me well informed throughout the process.

On time, professional, experienced and excellent communication. All key attributes of a fantastic tradesman! Thank you Ryan, we will see you for our annual service and maintenance and highly recommend you to all our friends and family!

Best Wishes, Nita

N McEvoy
Adrian Geaves
Katharine Walker
Juliet Cochrane

Speedy and efficient job at a fair price. Very satisfied

richard , CM20
Gas / Heating engineer

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

samira
Senake Hettiarachchi

Ryan and Paul did a fantastic job installing a new boiler under pretty difficult conditions. Thank you for being so professional and leaving the flat clean and tidy. Wouldn’t hesitate to recommend you

Nicola Raw

Arrived promptly. Able to fit in gas service quickly. Very professional. Good value for money. Trustworthy and reliable. Highly recommend

Mark Butterworth

Came round on Monday and diagnosed the issue – we needed a new boiler, which we already knew as it had been knackered for a while. Ryan came back on Weds to replace and did a great job. Highly recommend.

Antony Berou

Good price and good service. Maintenance is very fast.

Song Helen
J V

Fantastic service! Quick response, boiler issue sorted quickly. Highly recommended.

tom370

Ryan was responsive consistently to messages – a very key attribute when one has boiler issues! Shows he cares!

Will be engaging him again in the future. Very down to earth and helpful guy too. 🙂

Michael L

Great workmanship, friendly and helpful. Assert were fairly priced and trustworthy.
We had our boiler position moved as well as a new one installed. All our needs were met quickly and professionally. We will be sure to use them in the future. Can not recommend enough.

Simon Thompson

Fantastic service. I called the company to help in an emergency and they promptly arrived at the property and quickly identified the problem. Ryan was very knowledgable and understanding and we felt confident in his hands.
Thank you so much for a fabulous service

KatieM-592
Fantastic service
Senake Hettiarachchi

Ryan delivers solid, professional work in a friendly and very efficient manner. Extremely competent and keen to offer advice outside of the problem in hand – the mark of a serious and committed technician.

PeterL-1083
Boiler service and problem solving

Top professional service, they saved me and my family when our boiler stopped working, we didn’t have to wait long at all for them to come down and sort it, will definitely be using them again, i highly recommended.

Adam Smith

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

samira

I phoned needing an emergency repair to my heating system and booked in a visit on the phone. Ryan was polite, on time and professional. He diagnosed a fault with my boiler and explained how to rectify it and what that would entail. We agreed there and then for the remedial works to be done. Ryan attended again with parts to fix my boiler and had my heating and hot water up and running again in no time. I have already booked another appointment to have my boiler and both gas fires serviced in a few months time. Both happy and relieved, I have finally found a reliable plumbing and heating engineer!

Rebecca C
Charlie Findlater
back beat

A very prompt and professional service. Highly recommended. Would definitely use again.

christian oliver

Called Assert heating services regarding a radiator issue, Ryan was very helpful and come punctually to sort the issue in an efficient manner. Would highly recommend using Assert heating services in the future and would not hesitate to recommend to friends and family. Thank you very much!

Harry Tyerman

Efficient friendly good quality service.

AliA-551
Highly commendable
Laurence Hussey

Thank you Assert Heating for your very quick response. Boiler issue was sorted quickly and professionally. Your engineer was polite and respectful of social distancing, wore gloves and mask. Fully recommend!

Elena Sophocleous

Ryan was very polite and friendly . I would definitely use Assert heating again and due to professionalism. I would recommend them to others in the future.

Sandra Garbet

Great workmanship, friendly and helpful. Assert were fairly priced and trustworthy.
We had our boiler position moved as well as a new one installed. All our needs were met quickly and professionally. We will be sure to use them in the future. Can not recommend enough.

Simon Thompson

Ryan did a great job replacing my two old boilers, re-piping and installing an new eco Vaillant boiler. Arrived on time and all work completed in one day.

Spyros Spyrou

Came the same day we called and repaired our boiler. Very friendly over the phone and in person. They provided a great service – I’m very satisfied! Thank you!

Turgay Altun

Very quick, clear communication, highly recommend

Alastair , E17
Gas / Heating engineer

Contacted Assert Heating Services upon recommendation due to no heating or hot water at home. Within 24 hours Ryan attended, he was able to identify the issue and advise to cost and parts needed. Friendly, reliable and efficient service provided. Completed job to a high standard, will definitely use services again – highly recommended!

SelC
Fast, efficient, reliable and quality service !

Ryan carried out a service on our gas boiler and was very helpful and efficient.

BrigitteE-1
Gas boiler service

Great service Ryan. Arrived on time, very friendly & sorted out the boiler problem efficiently. We’d definitely recommend your services.

Leroy Pitt

Thanks Ryan, for a fantastic job on the boiler conversion for our new house, pre-refurb!

Ryan was recommended to us by a good mutual friend, to check a redundant gas pipe that was randomly sticking out of the ground in what will be our living room area and ensure the gas supply was cut off and sound and then remove the eyesore of a pipe for us.

What I really like about how Ryan works is that he’s efficient, professional and really knows his job, and is a good communicator. He always returned my calls and answered any texts/questions within a short space of time, and this to me took the stress out of the whole process. To top it off he gave me a wholesome price on the boiler conversion and kept me well informed throughout the process.

On time, professional, experienced and excellent communication. All key attributes of a fantastic tradesman! Thank you Ryan, we will see you for our annual service and maintenance and highly recommend you to all our friends and family!

Best Wishes, Nita

N McEvoy

Ryan came out on short notice as our boiler stopped working, he managed to diagnose the issue then sourced a replacement part and fitted it within a few hours, boiler has been working great since it was looked at a few weeks ago. Great service highly recommend!

Michael Drake

Thank you Assert Heating for your very quick response. Boiler issue was sorted quickly and professionally. Your engineer was polite and respectful of social distancing, wore gloves and mask. Fully recommend!

Elena Sophocleous

Thank you Assert Heating for your very quick response. Boiler issue was sorted quickly and professionally. Your engineer was polite and respectful of social distancing, wore gloves and mask. Fully recommend!

Elena Sophocleous

After getting messed around i used Assert Heating and i was so glad i did! Ryan was very knowledgeable, Brilliant service, very helpful, efficient and friendly. Definitely recommend 5 stars. very satisfied

A & T Boyle

Really good work very professional.

KenK-37
Excellent

Assert Heating provided a speedy service. Very professional and polite engineer who respected social distancing. Will definitely use again. Fully recommend

Elena Kounis Sophocleous

Fantastic service! Quick response, boiler issue sorted quickly. Highly recommended.

tom370

Ryan from Assert Heating Services arrived at the time promised and carried out the job very professionally and left the place spotless. Would recommend Ryan and his company for prompt and professional services without compromise. I have booked Ryan for annual boiler service which will be carried out this week.

Dinesh Sudra

I had a boiler installed recently and would recommend their services! Reliable, honest and competitively priced.

Lyndsey Page

Ryan has done several jobs for me and each time he has been knowledgable , courteous and punctual . Good clean job at a good price.

Nasim Belone

Ryan was communicative and professional. He did a great job and went out of his way to help us. I’d recommend Assert Heating. Thanks Ryan!

JulietC-37
Great service

Cant recommend this guy enough, Assert Heating Services provided a great service during this difficult time. Ryan was professional and clear about the problem I had with my boiler. He took the time to talk me through and show me where the issue was. I didnt feel harrased, he let me think about replacing the boiler before I called him in to do the job. All in all, great job and I now have hot water again. Highly recommend.

helen georghiou

Assert Heating provided a very professional service, very clean and tidy i would recommend them 100%

Ahmet Djemal

Same day visit, quick repair, friendly, reasonable price

Jim Fisher
Adrian Geaves

Great experience from Ryan and his team at Assert Heating Services. Showed up on time, were friendly and professional, sorted out my boiler at a reasonable price. Would recommend.

louise osborne

Our boiler broke down a week ago and Assert were quick to respond especially given the current circumstances. great value and service, cannot thank enough.
Cheers, all the best.

Omar El-sayed

BEST SERVICE AROUND!!! Very responsive right on time and very competitive price. I recommend this firm to everyone without any doubt.

HuseyinB-2
BEST SERVICE AROUND!!!

II was very pleased with Ryan he was polite and professional and punctual and I would highly recommend the service
Kind regards
Mr D Webb

DannyW-237
Assert heating

Great service Ryan. Arrived on time, very friendly & sorted out the boiler problem efficiently. We’d definitely recommend your services.

Leroy Pitt

Lee was super helpful and fast at fixing our heating!

Billie-rose Dell

Tennant reported that they had no hot water. I contacted AHS, Ryan, who attended, and by the next day two parts were replaced and hot water was up and running. All were happy with the great service provided

Brendon Ladd

Very professional and fixed the issue with minimum fuss.

Bishu Debroy

I found Assert by chance on Google last year as I needed a gas engineer to connect a gas cooked in a property I rent out. Ryan surpassed all my expectations of a fast and reliable service. He was very professional from the start and charges very fair prices. For this reason, I started calling Ryan whenever I have a problem in any of my properties I rent out and he’s always been very responsive and honest. Highly recommended!

Livia Marotti

Ryan from Assert Heating Services arrived at the time promised and carried out the job very professionally and left the place spotless. Would recommend Ryan and his company for prompt and professional services without compromise. I have booked Ryan for annual boiler service which will be carried out this week.

Dinesh Sudra

Fantastic service! Quick response, boiler issue sorted quickly. Highly recommended.

tom370

A very prompt and professional service. Highly recommended. Would definitely use again.

christian oliver
Ian Merrell

Professional, efficient and friendly with lots of good advice – identified problem and fixed leak leaving everything clean and tidy – would highly recommend.
John & Marion London N11

MarionB-105
Highly recommend Assert Heating Services

Ryan came to conduct a boiler service. He was punctual and informed me of his ETA prior to arriving. Showed me ID on arrival. Super polite and professional. Very knowledgeable. Respectful of COVID rules. I would highly recommend this trustworthy service. Thank you!

Claire Cortez

Ryan did a routine service of our boiler. He was friendly, chatty and knowledgable. Would use the company again.

Hannah Winchester

Our boiler broke down a week ago and Assert were quick to respond especially given the current circumstances. great value and service, cannot thank enough.
Cheers, all the best.

Omar El-sayed

Ryan from Assert Heating Services arrived at the time promised and carried out the job very professionally and left the place spotless. Would recommend Ryan and his company for prompt and professional services without compromise. I have booked Ryan for annual boiler service which will be carried out this week.

Dinesh Sudra

I’ve used Assert a few times now and each time I was impressed with how they conduct themselves before the job, during and after. The most recent experience was with Ryan who quoted me to replace a diverter valve on my very expensive Vailant boiler. Due to how much water was in the boiler which had to be drained, the job took a couple of hours but that had no bearing on the price or the professionalism whilst in my house. I know from experience others would have milked me for more money so I was pleased that again I paid the job quoted for and I definitely got what I paid for. Great experience with Assert and have no hesitation recommending them.

AndyC-2432
Quality work, honest price and very professional
Khalid Fahfouhi

Ryan came promptly when my boiler had problems and returned to carry out repairs at a mutually convenient time. excellent service

Michael Chrimes

Recently used Assert after my usual plumber couldn’t come out quick enough for a burst pipe in one of my properties and am very glad I did. Assert were quick to respond and fixed the issue to a high standard in next to no time. Great service all round. Looks like Assert might be my new port of call for any emergencies.

DominicFirthProperty
Quick and professional during an emergency.

Ryan is a fantastic and reliable engineer. Great service, and would strongly recommend to anyone I know! I called Ryan, and he immediately attended my property

Simona Canalella

Book an engineer

Get in touch with us today and book your next visit.

Gas Engineer Hertfordshire

Gas Engineer Hertfordshire

Our gas engineers in Hertfordshire are thoroughly and professionally trained to the highest standard, they are also Gas Safe Registered. We carry out each job to the highest standard possible and take pride in all our work. We offer a wide range of services, whether its boiler installation, appliance repair, repair of gas lines or heating systems, all carried out by trustworthy Gas Safe Certified engineers.

Landlord Safety Certificates Hertfordshire

We compile full safety reports and gas safety certificates for landlords and lettings agents in Hertfordshire. Our customers receive their certificates the same day, we are also able to perform any necessary repairs which may be required.

Boiler Servicing Hertfordshire

As your boiler is the core of your homes central heating system, it is important to keep it running smoothly with regular servicing and administering repairs when needed. Being registered installers, we are able to carry out boiler servicing in Hertfordshire. We can offer a same day fix or advice on a different solution to the issue.

Gas Leaks Hertfordshire

A suspected gas leak is extremely serious, if you think that you may have a gas leak in Hertfordshire make sure to contact us immediately. Once you have contacted us, one of our trained customer service advisors will take you through the swift steps which must be taken while one of our gas safe engineers makes their way to you.

Boiler Installations Hertfordshire

Being registered Worcester Bosch specialist installers, we are able to offer a 5 year warranty on their boiler installations. Our Gas Safe registered engineers will professionally execute Worcester Bosch installations in Hertfordshire as well from a range of numerous other suppliers.

Boiler Repairs Hertfordshire

As your boiler is the core of your homes central heating system, it is important to keep it running smoothly with regular servicing and administering repairs when needed. Being registered installers, we are able to carry out boiler servicing in Hertfordshire. We can offer a same day fix or advice on a different solution to the issue.

Gas Safety Reports Hertfordshire

We compile full safety reports and gas safety certificates for landlords and lettings agents in Hertfordshire. Our customers receive their certificates the same day, we are able to carry out any repairs if they are deemed necessary. We will also collaborate with your tenants so we can arrange a suitable time for all involved.

Gas Hob Replacement Hertfordshire

If you are in need of a gas hob replacement in Hertfordshire, we offer a quick and straightforward service at a competitive price. Our Gas Safe engineers all are highly experienced with countless different makes and models of gas hobs.

Gas Hob Installation Hertfordshire

Being gas safe engineers in Hertfordshire, we are the ideal company to carry out the installation of your new gas hob. We can usually carry out same day installations, as well as providing you with the ultimate appliance which caters for your needs

What our customers say

We care what our customers think of us and love to hear your feedback, if you would like to know what we can do for your home or business give us a call today and we’ll be happy to help!

Thankyou Assert Heating for repairing our boiler. Your services were very professional.

G Dhanji

Ryan came around to replace our old boiler with a new one as it had developed a fault that couldn’t be fixed. From the beginning he explained the issue with the existing one and arranged to fit a new one within 2 days. When installing, again Ryan explained everything we needed to know about the new boiler and also made sure everything was fully up and running before leaving. He also tidied up after himself so it looked like no one had been here! Highly recommended.

Sean McAvoy

Thanks Ryan, for a fantastic job on the boiler conversion for our new house, pre-refurb!

Ryan was recommended to us by a good mutual friend, to check a redundant gas pipe that was randomly sticking out of the ground in what will be our living room area and ensure the gas supply was cut off and sound and then remove the eyesore of a pipe for us.

What I really like about how Ryan works is that he’s efficient, professional and really knows his job, and is a good communicator. He always returned my calls and answered any texts/questions within a short space of time, and this to me took the stress out of the whole process. To top it off he gave me a wholesome price on the boiler conversion and kept me well informed throughout the process.

On time, professional, experienced and excellent communication. All key attributes of a fantastic tradesman! Thank you Ryan, we will see you for our annual service and maintenance and highly recommend you to all our friends and family!

Best Wishes, Nita

N McEvoy

Prompt reply, smooth communication.

khalid , E17
Gas / Heating engineer

Thank you to Ryan at Assert Heating, he completed boiler service but noticed we had an issue with a leaking tap which we were waiting for a plumber to come and fix in a few days time but Ryan offered to cap it for us to save us money on our water bill. I would definitely use again and recommend.

Anthony Arbon

Thank you to Ryan at Assert Heating, he completed boiler service but noticed we had an issue with a leaking tap which we were waiting for a plumber to come and fix in a few days time but Ryan offered to cap it for us to save us money on our water bill. I would definitely use again and recommend.

Anthony Arbon

Ryan was friendly, efficient and knowledgable. He serviced our Worcester Bosch boiler today.

Brian , NW11
Gas / Heating engineer

Ryan from Assert Heating Services came yesterday to do a full heating check. He was very knowledgeable and also suggested changing an old radiator to improve heat retention in a cold room. We’ll definitely have Ryan back to fit the new radiator and for future heating checks. I’ve already recommended Assert Heating services to a friend!

Lucy Simler
David Wolgroch

Great experience with Assert, can’t thank enough!

charlotte baird

Thanks to Ryan for punctually arriving at my mum’s and quickly sorting boiler issue. My mum would have been without water and heating otherwise. Great value callout and great quality work. Will be using Assert every time now for future work. Chris

Chris Steele

We have used Ryan for a few jobs over the years. Always provides a good service and cleans up after. Highly recommend him.

Maria Apostolou

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

samira

Very good service and efficient .. they responded fast and it didn’t take much time to know what’s the problem and to fix it.
Thanks to Rayen and his team I highly recommend them

Mohamed Salem

Ryan was very polite and friendly . I would definitely use Assert heating again and due to professionalism. I would recommend them to others in the future.

Sandra Garbet

We called Ryan on a recommendation to look at our hot water system which had stopped working. Ryan came as soon as he could and though the problem was a mystery he figured it out quickly and came back the next day with the right parts to fix. He was efficient, courteous and helpful. His price was fair and we will use him again. Thanks Ryan. Ina Norrman

Ina Norrman

Assert Heating provided a very professional service, very clean and tidy i would recommend them 100%

Arms Djemal

A very prompt and professional service. Highly recommended. Would definitely use again.

christian oliver

Thank you to Ryan at Assert Heating, he completed boiler service but noticed we had an issue with a leaking tap which we were waiting for a plumber to come and fix in a few days time but Ryan offered to cap it for us to save us money on our water bill. I would definitely use again and recommend.

Anthony Arbon

Cant recommend this guy enough, Assert Heating Services provided a great service during this difficult time. Ryan was professional and clear about the problem I had with my boiler. He took the time to talk me through and show me where the issue was. I didnt feel harrased, he let me think about replacing the boiler before I called him in to do the job. All in all, great job and I now have hot water again. Highly recommend.

helen georghiou

Thanks to Ryan for punctually arriving at my mum’s and quickly sorting boiler issue. My mum would have been without water and heating otherwise. Great value callout and great quality work. Will be using Assert every time now for future work. Chris

Chris Steele

Been using Ryan for all my heating and gas needs over the years.
He’s always prompt and carries out a good job.
Highly recommended.

Eric Ibekwem

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

SamiraA-20
Professional, friendly and value for money

💯 Reliable, hard working, friendly; kept smiling through the challenges.

Karen Brant

Assert Heating were responsive, quick to make an appointment and carried out the work professionally and cheerfully! I would recommend!

Mika Nash
Senake Hettiarachchi

Lee was super helpful and fast at fixing our heating!

Billie-rose Dell

Lee was super helpful and fast at fixing our heating!

Billie-rose Dell

Great service received from Ryan and Jamie – prompt response and quick and efficient completion of the job (gas supply check).
Would not hesitate to use Assert Heating Services again. Happy to recommend them.

George Hapeshi

Great workmanship, friendly and helpful. Assert were fairly priced and trustworthy.
We had our boiler position moved as well as a new one installed. All our needs were met quickly and professionally. We will be sure to use them in the future. Can not recommend enough.

Simon Thompson

Cant recommend this guy enough, Assert Heating Services provided a great service during this difficult time. Ryan was professional and clear about the problem I had with my boiler. He took the time to talk me through and show me where the issue was. I didnt feel harrased, he let me think about replacing the boiler before I called him in to do the job. All in all, great job and I now have hot water again. Highly recommend.

helen georghiou
Adrian Geaves

Great experience with Assert, can’t thank enough!

charlotte baird

Great service Ryan. Arrived on time, very friendly & sorted out the boiler problem efficiently. We’d definitely recommend your services.

Leroy Pitt

Very good service. On time friendly & efficient.
Leroy Pitter

LeroyP-6
Boiler repair. Excellent service

Assert Heating provided a very professional service, very clean and tidy i would recommend them 100%

Ahmet Djemal

Great experience with Assert, can’t thank enough!

charlotte baird

Ryan arrived in time, fixed our problem quickly, was very professional and friendly. We highly recommend him!

Guillaume Jolly

Our boiler broke down a week ago and Assert were quick to respond especially given the current circumstances. great value and service, cannot thank enough.
Cheers, all the best.

Omar El-sayed

Highly recommended local boiler service. Prompt, Respectful. Didn’t just come in to do the job but gave sound advice on the equipment and how to avoid incurring long term cost. Friendly and good customer service

NickA-280
Great Service

I have used Ryan a couple of times and he is very professional knows his stuff no job to big or small he has every part needed for the job I can’t recommend him enough and will be passing his details on to friends and family and will not hesitate to call him again if I have anymore problems
a big thank you for reconnecting my cooker again
Grateful customer

Lele Williams

Ryan was friendly and did a tidy job.
Thank you.

Gabriela Butt

Ryan was very polite and friendly . I would definitely use Assert heating again and due to professionalism. I would recommend them to others in the future.

Sandra Garbet
Katharine Walker

Thanks Ryan, for a fantastic job on the boiler conversion for our new house, pre-refurb!

Ryan was recommended to us by a good mutual friend, to check a redundant gas pipe that was randomly sticking out of the ground in what will be our living room area and ensure the gas supply was cut off and sound and then remove the eyesore of a pipe for us.

What I really like about how Ryan works is that he’s efficient, professional and really knows his job, and is a good communicator. He always returned my calls and answered any texts/questions within a short space of time, and this to me took the stress out of the whole process. To top it off he gave me a wholesome price on the boiler conversion and kept me well informed throughout the process.

On time, professional, experienced and excellent communication. All key attributes of a fantastic tradesman! Thank you Ryan, we will see you for our annual service and maintenance and highly recommend you to all our friends and family!

Best Wishes, Nita

N McEvoy
Adrian Geaves
Katharine Walker
Juliet Cochrane

Speedy and efficient job at a fair price. Very satisfied

richard , CM20
Gas / Heating engineer

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

samira
Senake Hettiarachchi

Ryan and Paul did a fantastic job installing a new boiler under pretty difficult conditions. Thank you for being so professional and leaving the flat clean and tidy. Wouldn’t hesitate to recommend you

Nicola Raw

Arrived promptly. Able to fit in gas service quickly. Very professional. Good value for money. Trustworthy and reliable. Highly recommend

Mark Butterworth

Came round on Monday and diagnosed the issue – we needed a new boiler, which we already knew as it had been knackered for a while. Ryan came back on Weds to replace and did a great job. Highly recommend.

Antony Berou

Good price and good service. Maintenance is very fast.

Song Helen
J V

Fantastic service! Quick response, boiler issue sorted quickly. Highly recommended.

tom370

Ryan was responsive consistently to messages – a very key attribute when one has boiler issues! Shows he cares!

Will be engaging him again in the future. Very down to earth and helpful guy too. 🙂

Michael L

Great workmanship, friendly and helpful. Assert were fairly priced and trustworthy.
We had our boiler position moved as well as a new one installed. All our needs were met quickly and professionally. We will be sure to use them in the future. Can not recommend enough.

Simon Thompson

Fantastic service. I called the company to help in an emergency and they promptly arrived at the property and quickly identified the problem. Ryan was very knowledgable and understanding and we felt confident in his hands.
Thank you so much for a fabulous service

KatieM-592
Fantastic service
Senake Hettiarachchi

Ryan delivers solid, professional work in a friendly and very efficient manner. Extremely competent and keen to offer advice outside of the problem in hand – the mark of a serious and committed technician.

PeterL-1083
Boiler service and problem solving

Top professional service, they saved me and my family when our boiler stopped working, we didn’t have to wait long at all for them to come down and sort it, will definitely be using them again, i highly recommended.

Adam Smith

Great service, friendly and very professional. After the first email , Ryan made sure the inriial contact straight away and made all the arrangement for the appointment. He was very flexible with the timing. I have completed the gas certificate ans it was value for money . He was on time and made sure hechecked everything needed . I am definitely will be using this company again. I highly recommend assert heating services.

samira

I phoned needing an emergency repair to my heating system and booked in a visit on the phone. Ryan was polite, on time and professional. He diagnosed a fault with my boiler and explained how to rectify it and what that would entail. We agreed there and then for the remedial works to be done. Ryan attended again with parts to fix my boiler and had my heating and hot water up and running again in no time. I have already booked another appointment to have my boiler and both gas fires serviced in a few months time. Both happy and relieved, I have finally found a reliable plumbing and heating engineer!

Rebecca C
Charlie Findlater
back beat

A very prompt and professional service. Highly recommended. Would definitely use again.

christian oliver

Called Assert heating services regarding a radiator issue, Ryan was very helpful and come punctually to sort the issue in an efficient manner. Would highly recommend using Assert heating services in the future and would not hesitate to recommend to friends and family. Thank you very much!

Harry Tyerman

Efficient friendly good quality service.

AliA-551
Highly commendable
Laurence Hussey

Thank you Assert Heating for your very quick response. Boiler issue was sorted quickly and professionally. Your engineer was polite and respectful of social distancing, wore gloves and mask. Fully recommend!

Elena Sophocleous

Ryan was very polite and friendly . I would definitely use Assert heating again and due to professionalism. I would recommend them to others in the future.

Sandra Garbet

Great workmanship, friendly and helpful. Assert were fairly priced and trustworthy.
We had our boiler position moved as well as a new one installed. All our needs were met quickly and professionally. We will be sure to use them in the future. Can not recommend enough.

Simon Thompson

Ryan did a great job replacing my two old boilers, re-piping and installing an new eco Vaillant boiler. Arrived on time and all work completed in one day.

Spyros Spyrou

Came the same day we called and repaired our boiler. Very friendly over the phone and in person. They provided a great service – I’m very satisfied! Thank you!

Turgay Altun

Very quick, clear communication, highly recommend

Alastair , E17
Gas / Heating engineer

Contacted Assert Heating Services upon recommendation due to no heating or hot water at home. Within 24 hours Ryan attended, he was able to identify the issue and advise to cost and parts needed. Friendly, reliable and efficient service provided. Completed job to a high standard, will definitely use services again – highly recommended!

SelC
Fast, efficient, reliable and quality service !

Ryan carried out a service on our gas boiler and was very helpful and efficient.

BrigitteE-1
Gas boiler service

Great service Ryan. Arrived on time, very friendly & sorted out the boiler problem efficiently. We’d definitely recommend your services.

Leroy Pitt

Thanks Ryan, for a fantastic job on the boiler conversion for our new house, pre-refurb!

Ryan was recommended to us by a good mutual friend, to check a redundant gas pipe that was randomly sticking out of the ground in what will be our living room area and ensure the gas supply was cut off and sound and then remove the eyesore of a pipe for us.

What I really like about how Ryan works is that he’s efficient, professional and really knows his job, and is a good communicator. He always returned my calls and answered any texts/questions within a short space of time, and this to me took the stress out of the whole process. To top it off he gave me a wholesome price on the boiler conversion and kept me well informed throughout the process.

On time, professional, experienced and excellent communication. All key attributes of a fantastic tradesman! Thank you Ryan, we will see you for our annual service and maintenance and highly recommend you to all our friends and family!

Best Wishes, Nita

N McEvoy

Ryan came out on short notice as our boiler stopped working, he managed to diagnose the issue then sourced a replacement part and fitted it within a few hours, boiler has been working great since it was looked at a few weeks ago. Great service highly recommend!

Michael Drake

Thank you Assert Heating for your very quick response. Boiler issue was sorted quickly and professionally. Your engineer was polite and respectful of social distancing, wore gloves and mask. Fully recommend!

Elena Sophocleous

Thank you Assert Heating for your very quick response. Boiler issue was sorted quickly and professionally. Your engineer was polite and respectful of social distancing, wore gloves and mask. Fully recommend!

Elena Sophocleous

After getting messed around i used Assert Heating and i was so glad i did! Ryan was very knowledgeable, Brilliant service, very helpful, efficient and friendly. Definitely recommend 5 stars. very satisfied

A & T Boyle

Really good work very professional.

KenK-37
Excellent

Assert Heating provided a speedy service. Very professional and polite engineer who respected social distancing. Will definitely use again. Fully recommend

Elena Kounis Sophocleous

Fantastic service! Quick response, boiler issue sorted quickly. Highly recommended.

tom370

Ryan from Assert Heating Services arrived at the time promised and carried out the job very professionally and left the place spotless. Would recommend Ryan and his company for prompt and professional services without compromise. I have booked Ryan for annual boiler service which will be carried out this week.

Dinesh Sudra

I had a boiler installed recently and would recommend their services! Reliable, honest and competitively priced.

Lyndsey Page

Ryan has done several jobs for me and each time he has been knowledgable , courteous and punctual . Good clean job at a good price.

Nasim Belone

Ryan was communicative and professional. He did a great job and went out of his way to help us. I’d recommend Assert Heating. Thanks Ryan!

JulietC-37
Great service

Cant recommend this guy enough, Assert Heating Services provided a great service during this difficult time. Ryan was professional and clear about the problem I had with my boiler. He took the time to talk me through and show me where the issue was. I didnt feel harrased, he let me think about replacing the boiler before I called him in to do the job. All in all, great job and I now have hot water again. Highly recommend.

helen georghiou

Assert Heating provided a very professional service, very clean and tidy i would recommend them 100%

Ahmet Djemal

Same day visit, quick repair, friendly, reasonable price

Jim Fisher
Adrian Geaves

Great experience from Ryan and his team at Assert Heating Services. Showed up on time, were friendly and professional, sorted out my boiler at a reasonable price. Would recommend.

louise osborne

Our boiler broke down a week ago and Assert were quick to respond especially given the current circumstances. great value and service, cannot thank enough.
Cheers, all the best.

Omar El-sayed

BEST SERVICE AROUND!!! Very responsive right on time and very competitive price. I recommend this firm to everyone without any doubt.

HuseyinB-2
BEST SERVICE AROUND!!!

II was very pleased with Ryan he was polite and professional and punctual and I would highly recommend the service
Kind regards
Mr D Webb

DannyW-237
Assert heating

Great service Ryan. Arrived on time, very friendly & sorted out the boiler problem efficiently. We’d definitely recommend your services.

Leroy Pitt

Lee was super helpful and fast at fixing our heating!

Billie-rose Dell

Tennant reported that they had no hot water. I contacted AHS, Ryan, who attended, and by the next day two parts were replaced and hot water was up and running. All were happy with the great service provided

Brendon Ladd

Very professional and fixed the issue with minimum fuss.

Bishu Debroy

I found Assert by chance on Google last year as I needed a gas engineer to connect a gas cooked in a property I rent out. Ryan surpassed all my expectations of a fast and reliable service. He was very professional from the start and charges very fair prices. For this reason, I started calling Ryan whenever I have a problem in any of my properties I rent out and he’s always been very responsive and honest. Highly recommended!

Livia Marotti

Ryan from Assert Heating Services arrived at the time promised and carried out the job very professionally and left the place spotless. Would recommend Ryan and his company for prompt and professional services without compromise. I have booked Ryan for annual boiler service which will be carried out this week.

Dinesh Sudra

Fantastic service! Quick response, boiler issue sorted quickly. Highly recommended.

tom370

A very prompt and professional service. Highly recommended. Would definitely use again.

christian oliver
Ian Merrell

Professional, efficient and friendly with lots of good advice – identified problem and fixed leak leaving everything clean and tidy – would highly recommend.
John & Marion London N11

MarionB-105
Highly recommend Assert Heating Services

Ryan came to conduct a boiler service. He was punctual and informed me of his ETA prior to arriving. Showed me ID on arrival. Super polite and professional. Very knowledgeable. Respectful of COVID rules. I would highly recommend this trustworthy service. Thank you!

Claire Cortez

Ryan did a routine service of our boiler. He was friendly, chatty and knowledgable. Would use the company again.

Hannah Winchester

Our boiler broke down a week ago and Assert were quick to respond especially given the current circumstances. great value and service, cannot thank enough.
Cheers, all the best.

Omar El-sayed

Ryan from Assert Heating Services arrived at the time promised and carried out the job very professionally and left the place spotless. Would recommend Ryan and his company for prompt and professional services without compromise. I have booked Ryan for annual boiler service which will be carried out this week.

Dinesh Sudra

I’ve used Assert a few times now and each time I was impressed with how they conduct themselves before the job, during and after. The most recent experience was with Ryan who quoted me to replace a diverter valve on my very expensive Vailant boiler. Due to how much water was in the boiler which had to be drained, the job took a couple of hours but that had no bearing on the price or the professionalism whilst in my house. I know from experience others would have milked me for more money so I was pleased that again I paid the job quoted for and I definitely got what I paid for. Great experience with Assert and have no hesitation recommending them.

AndyC-2432
Quality work, honest price and very professional
Khalid Fahfouhi

Ryan came promptly when my boiler had problems and returned to carry out repairs at a mutually convenient time. excellent service

Michael Chrimes

Recently used Assert after my usual plumber couldn’t come out quick enough for a burst pipe in one of my properties and am very glad I did. Assert were quick to respond and fixed the issue to a high standard in next to no time. Great service all round. Looks like Assert might be my new port of call for any emergencies.

DominicFirthProperty
Quick and professional during an emergency.

Ryan is a fantastic and reliable engineer. Great service, and would strongly recommend to anyone I know! I called Ryan, and he immediately attended my property

Simona Canalella

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