Range from the cheapest fitting of a boiler magnetic filter £50 (General BMS Ltd based in HP2) to the dearest fitting of a boiler magnetic filter £150 (A J Heating & Plumbing based in AL1).
Comparing heating engineers estimates for fitting a magnetic filter 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 connect a magnetic filter in AL3 by posting a job with HaMuch and we will send it to heating engineers in AL3.