Range from the cheapest window sill replacement £260 (TTM Improve Homes based in UB5) to the dearest window sill replacement £700 (Sagoo Installations Ltd based in UB3).
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 Yeading by posting a job with HaMuch and we will send it to carpenter & joiners in Yeading.