Greenheat Uk
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Greenheat Uk
Proud to be considered the leading manufacturer authorised Keston Boiler repair, servicing and installation company in London and the South East of England. We maintain and repair all current and legacy or retired Keston Boiler models using the largest stock of Keston Boiler spares in the United Kingdom.

We offer unrivalled expertise for servicing, repairing and installation of Keston and Ideal Commercial Boilers. We operate a highly skilled workforce of boiler and system engineers with a combined operational experience on the boiler ranges we suppport of over 150 years.
Services
We are proud to call ourselves the home of Keston boilers. With over 125 years of combined engineering experience on Keston boilers we offer installation, breakdown repairs and boiler servicing. We work closely alongside Ideal and Keston and are regarded by the manufacturer as specialists on their products.
Offering first-class comfort in a compact, wall-hung appliance small enough to fit inside a standard kitchen cupboard, the Keston Combi 30 & 35 enable heating and hot water to be controlled independently, ensuring maximum comfort and efficiency. The Keston Combi & 35 can be sited almost anywhere in the home, without the need for a separate tank.
The lightweight design is supported through quality build and aesthetics that allow for the boiler to be installed either on the wall or into a prefabricated floor mounted frame including back-to-back options.

Optional frame and header kits offer in-line andback-to-back cascade options of up to 6 boilers, with a combined capacity of up to 600 kW and provide the option of mounting boilers away from the wall for multiple installations that deliver a higher output.Supported by a 5 year parts and labour warranty*, the Evomax is a reliable and efficient wall hung solution.
Greenheat UK is your solution for all Domestic Heating needs. This includes your Keston boiler servicing, repairs and installations for which we are most known but is not limited to only this! Don't need a Keston - give us a call. We work closely with other boiler manufacturers to ensure we have a solution that is right for you.
As well as having Domestic engineers, we also have Commercially licensed engineers that can operate on both Natural and Liquid Petroleum Gas supplies. Commercially we work with both the Keston and Ideal Commercial ranges of boilers. The Keston Heat Boiler, or Ideal Evomax or Evo S models, come in a variety of different power outputs and can be installed in multiples either on the wall or or prefabricated floor standing frame rigs.
Reviews (6)
Nicolette Breitenstein
Nicolette Breitenstein
Nov 01, 2021
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Positive: Professionalism, Punctuality, Responsiveness
Keaton Boiler repair, heating repair
Service: Heating system repair
Kieron
Kieron
Jul 14, 2021
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Fast and efficient. A much more expensive competitor had spent a day and a half getting nowhere - eventually suggesting I replace the whole boiler. Greenheat quickly diagnosed the root cause and were gone in under an hour.
Keston boilers are rarer than other manufacturers. If you have one I highly recommend using Greenheat as they know their stuff.
Robert Parker
Robert Parker
Jun 02, 2021
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They came to our house quickly to repair our boiler . Very efficient and reasonably priced - definitely use them again .
Service: Heating system repair
Simon Catt
Simon Catt
Feb 20, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness
Very efficient and responsive. Can’t recommend highly enough.
Service: Heating system repair
Rikin Patel
Rikin Patel
Jun 30, 2020
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Very grateful to Greenheat for sorting out our boiler issue.
They are busy but worth the wait if you need a professional for a Keston Boiler. Mandy did an amazing job at getting us in the diary as soon as possible and arranging the necessary follow up visits to get us fixed as quickly as they could. James was very efficient, confidently diagnosed and resolved the problem. Thank you!
Robert Darton
Robert Darton
May 04, 2020
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Positive: Professionalism
I have had a long standing working relationship with Greenheat UK Ltd. They are a very professional company well run and set and achieve high standards in what they do. They are very reliable with a high attention to detail in all their jobs. You will receive a high quality of service and back up support second to none.