https://blogfreely.net/ratrave....n49/cat-flap-cover-f
A upvc-clad panel with an animal flap can help reduce draughts within your home. By keeping your pets in and cold air out you can save money on heating bills. It is possible to fit cat flaps into the upvc panels as well as double glazing glass sealed units however it is more difficult than with timber doors. This is due to different thicknesses of upvc. Benefits A cat flap that is installed on your door will allow you to keep your pet inside or outside the house, while allowing other people in. It also keeps out unwanted anima