https://zenwriting.net/sheepgh....ost5/installing-a-up
https://www.openlearning.com/u..../winklersavage-smcsl
It is easier than you think to set up an animal flap inside the solid uPVC panel or a sealed double glazed unit. If you don't have the appropriate tools or experience you will require the help of professionals. This guide will teach you how to mark the measurement, cut and mark the cat flap on the uPVC panel. Also, how to make the flap weatherproof and draft resistant. Safety A upvc-clad panel with a cat flap is a great wa