https://zenwriting.net/pumpact....25/installing-a-upvc
https://dev.to/beadanger75/fit....-a-cat-flap-in-a-upv
Double-glazed cat flaps allow your pet to move around the home without restriction. This can reduce stress levels, boost their sense of freedom and encourage exploration and exercise. It can be fitted into new uPVC doors and windows, and the pet flap hole is cut during the manufacturing process. However, it shouldn't be installed in existing glass that is tempered. Cost It is essential to take into consideration the installation cost when deci