Range from the cheapest cat flap installation £80 (A & S Construction Ltd based in NW9) to the dearest cat flap installation £200 (Carpentry Concepts based in NW9).
Comparing carpenter & joiners estimates for installing a cat flap 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 fit a cat flap in NW7 by posting a job with HaMuch and we will send it to carpenter & joiners in NW7.