Range from the cheapest powerflush £400 (Barry David May based in N1) to the dearest powerflush £1000 (Boiler Repairs London based in E9).
Comparing heating engineers estimates for powerflushing a central heating system gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to powerflush in EC1Y by posting a job with HaMuch and we will send it to heating engineers in EC1Y.