Range from the cheapest replacement of a header tank £151 (RD Services based in WS12) to the dearest replacement of a header tank £451 (THH SERVICES LTD based in TF1).
Comparing plumbers estimates for replacing an expansion header water tank for your central heating 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 replace a header tank in ST20 by posting a job with HaMuch and we will send it to plumbers in ST20.