Range from the cheapest replacement of an oil boiler £750 (ProPlumb based in BS36) to the dearest replacement of an oil boiler £2500 (Ace Gas based in BS4).
Comparing heating engineers estimates for replacing an oil boiler 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 an oil boiler in S by posting a job with HaMuch and we will send it to heating engineers in S.