Gas Safe Register LogoWelcome to A1 Boilers, London

A1 Boilers is an independent company, established in 2001. All our engineers are Gas Safe registered and fully qualified. We pride ourselves on our professionalism and reliability, providing unbiased advice and always trying to accommodate our customers’ individual needs and requirements.

A registered member of Gas Safe (formerly the Council of Registered Gas Installers:CORGI)Which Trusted Trader logo

We are proud to announce that the services provided by A1 Boilers have been assessed and approved by Which? Trusted Traders. This accreditation is an external and independent recognition of the quality of service provided by A1 Boilers. Which Trusted Traders

A1 Boilers is an Associate Member of the Independent Domestic Heating & Environmental Engineers (IDHEE)

Postal Areas Covered

Based in Highams Park, London E4, we operate across North & East London and the close-by areas of Essex, Middlesex and Hertfordshire. Please see our contact page, for a comprehensive list of the postcodes covered.

Boiler Manufacturers Covered

We are an Ariston Approved Service Centre and also work with all major boiler brands, including Vaillant, Worcester Bosch, Ideal Logic, Baxi, Biasi, Gloworm, Potterton.

Ariston Approved Service Centre

As an Ariston Approved Service Centre, we stock a comprehensive range of spare parts for all Ariston boilers and hot water storage cylinders.

Our years of experience of working with Ariston means our expertise and in-depth knowledge of all Ariston products and components (both current and discontinued) is second to none.

What Clients Say

When our boiler broke down shortly after our daughter was born panic set in. A1 Boilers came and fixed the problem quickly and cheaply and provided us with friendly helpful feedback on our systems’ performance.
Mr D. Fraser Moore, South Tottenham, North London
We found A1 Boilers to be very professional when they installed our new boiler. The Engineers worked quickly, efficiently and provided an excellent service throughout, answering any questions we had. This gave us complete confidence in the company and we would highly recommend A1 Boilers to anyone.
Mr J Nemetnejad, Staples Corner, London, NW2
A1 Boilers are reliable, trustworthy and friendly. They responded quickly when we had trouble with the boiler and we would definitely recommend them.
David and Angela, North London, N19
Lifesaver! We had tried four companies in trying to fix our boiler. A1 were the only company to repair the boiler and bring our hot water back. Very quick and straight forward. Thoroughly recommended!
Miss Gemma Barron, London, NW6
Three previous engineers failed miserably to fix our boiler, when along came Simon from A1 Boilers. A ‘result’ indeed with instant success. Have used A1 on a second occasion with 100% satisfaction. Don’t think twice, A1 are alright.
Mr I MacKenzie, London, E11
It is unusual to find an engineer who one would be happy to recommend to a friend. Simon from A1 Boilers breaks the mould and I would have no hesitation in passing his name to anyone in need of an efficient, reliable and reasonably priced service.
Matthew Crawford, Upper Street, N1, London
Courteous and fast service, they fixed my boiler quickly when it was broken. I have been calling them since for boiler servicing as they know what they are doing!
Ms R A Ragni, London, NW1