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Assert Heating Services offer an upfront pricing policy that never leaves clients surprised or blindsided. Our clients will know exactly how much their heating services cost in advance. Our engineers, as well as our customer support team will inform you an exact cost for every project large or small. We aim to advise all customers on potential options to help you save money where possible but we’ll always advise to go with quality over cost when it comes to such a vital part of your home or business.

  • Assert Heating Services provide exceptional heating services and installation at competitive prices.
  • Fully qualified gas safe engineers with the skills to diagnose and rectify any gas, plumbing or heating problem.
  • No hidden costs
  • 10% discount for first time customers
  • Payment options: cash, debit card & credit card

Our engineers are fully trained to identify the problem quickly and fix it, delivering unbeatable quality of service whilst keeping to project timescales, contact us today on 0800 458 8929.


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