Range from the cheapest powerflush £400 (Harrow School based in HA1) to the dearest powerflush £1400 (Commercial Gas Systems Ltd based in HA2).
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 Harrow by posting a job with HaMuch and we will send it to heating engineers in Harrow.