Range from the cheapest installation of a gas fire £104 (Plumbing and Heating Solution based in SE13) to the dearest installation of a gas fire £680 (1977 - Denham Plumbing and Gas based in SE26).
Comparing heating engineers estimates for installing a gas fire 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 gas fire in SE6 by posting a job with HaMuch and we will send it to heating engineers in SE6.