Range from the cheapest window sill replacement £300 (Spyrangle Carpentry based in HR2) 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 HR4 by posting a job with HaMuch and we will send it to carpenter & joiners in HR4.