Range from the cheapest cat flap installation £80 (MB Joinery based in ST7) to the dearest cat flap installation £125 (Builder based in SK12).
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 CW12 by posting a job with HaMuch and we will send it to carpenter & joiners in CW12.