Range from the cheapest powerflush £120 (Jay-Ce Enterprise based in CT18) to the dearest powerflush £720 (Clarke's Gas Services based in ME13).
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 CT4 by posting a job with HaMuch and we will send it to heating engineers in CT4.