If your radiators aren’t heating properly, your boiler is making unusual noises, or your energy bills are creeping up, your heating system could be suffering from a build-up of sludge and debris.
At Sussex Renewable Heating, our professional power flushing service is designed to thoroughly clean your central heating system - restoring performance, improving efficiency, and helping to extend the life of your boiler.
Power flushing is a deep-cleaning process for your central heating system. Using specialist equipment, we circulate high-flow water and cleaning chemicals through your pipes, radiators, and boiler to remove accumulated sludge, rust, and debris.
Over time, this build-up restricts water flow, reduces heat output, and forces your boiler to work harder than it should.
A professional power flush clears these blockages, allowing your system to run as it was designed to.
You may benefit from a power flush if you’re experiencing:
These are all common indicators of sludge build-up restricting circulation within your system.
At Sussex Renewable Heating, we follow a thorough and proven approach:
The process is efficient, controlled, and designed to deliver long-lasting results with minimal disruption.
Power flushing is recommended:
Regular maintenance helps avoid costly repairs and keeps your system operating at peak performance.
Toby Lott
Added 2 weeks ago
Ian Lomax
Added June 2026
Friendly and professional service. My wife and I are new to air source heat pumps and Harry was great in explaining how they operated and what to do to maximise efficiency.
Archi Lamont
Added May 2026
Excellent service. Arrived on time, very tidy, explained a lot that I didn't know. Harry is in the diary for next year's service.
R E
Added May 2026
Efficient friendly service. Harry was knowledgeable and worked hard to solve a problematic heat pump.
Lawrence Naested
Added April 2026
Harry and his team carried out this work with professionalism and to a high quality from start to finish, great communication, highly skilled and very knowledgeable.
Arthur Staton
Added March 2026
Harry was great. Very professional, responsible, arrived early, diagnosed and dealt with the issue with my air source pump without fuss. Will use him every time.
Casper Synnott
Added March 2026
Great service, thorough and helpful.
Dom Lynch
Added February 2026
Harry serviced my ASHP and did a great, thorough job. Took time to explain some functionality and really friendly too. Would definitely recommend
Susan Harrison
Added January 2026
Harry is a really nice person & easy to relate to. He responded very quickly when he heard that we had no hot water. The air pump system in our new build has been fitted with many errors. He returned with his excellent electrician & rectified a lot. For the first time, It is working as it should. He is very knowledgeable about the various models of pumps...
Keith Bonner
Added November 2025
Excellent work, excellent, service. Very happy to recommend, thanks Harry!
Sussex Renewable Heating
Excellent service from start to finish. Harry is a very professional and reliable heating engineer who was thorough, knowledgeable and took great care with the work. Everything was explained clearly, and the job was completed to a very high standard. I wouldn't hesitate to recommend him and will definitely use his services again.