Range from the cheapest window sill replacement £180 (1965 based in DY11) to the dearest window sill replacement £500 (Elliott's Property Renovations & Garden Landscaping based in WR14).
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 WR3 by posting a job with HaMuch and we will send it to carpenter & joiners in WR3.