Range from the cheapest window sill replacement £240 (The Cardiff Plumbers based in CF3) to the dearest window sill replacement £500 (Jb maintenance and construction Ltd based in CF3).
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 Cf2 by posting a job with HaMuch and we will send it to carpenter & joiners in Cf2.