Range from the cheapest window sill replacement £412 (Phil Leibbrandt based in GL20) to the dearest window sill replacement £480 (JT Carpentry Ltd based in GL52).
Comparing carpenter & joiners estimates for replacing a window sill 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 window sill in GL50 by posting a job with HaMuch and we will send it to carpenter & joiners in GL50.