Range from the cheapest fitting of a boiler magnetic filter £30 (Harvey Plumbing & Heating based in B73) to the dearest fitting of a boiler magnetic filter £150 (O W Plumbing & Heating based in B44).
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 B42 by posting a job with HaMuch and we will send it to heating engineers in B42.