Range from the cheapest cat flap installation £80 (B H G M Ltd based in CT7) to the dearest cat flap installation £104 (Hawks Developments Limited based in ME13).
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 CT8 by posting a job with HaMuch and we will send it to carpenter & joiners in CT8.