Range from the cheapest Fit a radiator £90 (Philips Building Services based in GL19) to the dearest Fit a radiator £180 (RM Plumbing & Heating based in GL52).
Comparing heating engineers estimates for fitting a new radiator in GL52 gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes. Radiators vary in price, and additional hours will be required to make pipework changes.
What to do - Get rates and quotes for removing your old radiator and replacing it with a new radiator by posting your job to heating engineers in GL52.

"My cottage doesn't have enough radiators installed to heat up the living room and kitchen. Would like to add a couple there."
GL51