Range from the cheapest replacement of an oil boiler £850 (Grant Cross based in SE25) to the dearest replacement of an oil boiler £1500 (Mahdi Soroush based in SE20).
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 BR3 by posting a job with HaMuch and we will send it to heating engineers in BR3.