Range from the cheapest window sill replacement £320 (Ferreira house maintenance based in HP2) to the dearest window sill replacement £528 (ADL Build Ltd based in LU7).
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 Tring by posting a job with HaMuch and we will send it to carpenter & joiners in Tring.