Range from the cheapest replacement of a header tank £96 (1953 based in DA8) to the dearest replacement of a header tank £401 (Rodrick Seely based in DA16).
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 DA7 by posting a job with HaMuch and we will send it to plumbers in DA7.