Range from the cheapest cat flap installation £40 (Ghani Constructions based in IG1) to the dearest cat flap installation £320 (Bspec Ltd based in E5).
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 Canning Town by posting a job with HaMuch and we will send it to carpenter & joiners in Canning Town.