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Assert Heating Services represents the breaking edge in delivering complete gas & heating services throughout London and the surrounding areas. We are constantly building our portfolio for modern plumbing, gas and heating engineering from small to larger projects.

We were originally founded in 2003 and have been bringing innovative, specialised heating services to London ever since. Over the years we managed to gain an extensive array of experience in the plumbing and heating trade and have built up an impressive list of ongoing customers as we strive to improve the quality of residential heating systems in London. We are established partners and approved installers of a number of boiler manufacturers including Worcester Bosch and Vaillant.

Our customers know that we are committed to our quality of service and aim to deliver an impeccable heating solution to your home or business in and around London. Our expertise is second to none and we pride ourselves on reliable, professional customer service.

Assert Heating Services provides an extensive range of heating services:

  • Heating Services
  • Gas Cookers
  • Gas Fires
  • Water Heaters
  • System Alterations
  • System Extensions
  • 24 Hour Plumbing Services
  • Residential Plumbing
  • Power Flushing Services
  • Combi/Conventional Boiler Installation
  • CP12s/Landlord Certificates
  • Landlord Safety Checks
  • Servicing, Breakdowns & Maintenance
  • Part Fitting
  • Emergency call outs 24/7

Here at Assert Heating Services, we understand how important it is for our customers to be completely satisfied having a fully functional home heating system ensuring that comfort and customer safety is at the forefront of our service. We are dedicated and reaching out to and helping customers is what we do best. Here at Assert Heating Services we never fail in providing exceptional customer support combined with efficient plumbing services in case of any heating emergencies.

Our customers’ safety is paramount – we always make sure the property is safe before proceeding with servicing.

Assert Heating offers professional heating services, including boiler repairs, breakdowns, installation, servicing and emergency call outs on request. As a leading heating service, our main aim is to is to bring the highest quality of work to any home or business in London and the surrounding areas.

Call us today for a free quote and to discuss your exact requirements!


We offer extensive gas service solutions. From gas safety checks, gas safety certifications to gas leak repairs and other gas services in London.

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Our team of plumbing engineers work fast and efficiently and can carry out a range of services from routine leaks to advanced system problems.

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Our team of gas safe heating engineers carry out boiler repairs, install state of the art heating systems and implement system upgrades on a daily basis.

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Our rates

Boiler repairs starting from £79 – for all new and existing customers.

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Book an engineer

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

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Plumber in London