Range from the cheapest window sill replacement £376 (Simplicity Timber Solutions Ltd. based in LE16) to the dearest window sill replacement £500 (NICHOLLS JOINERY based in NN16).
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 NN6 by posting a job with HaMuch and we will send it to carpenter & joiners in NN6.