https://sciencewiki.science/wi....ki/Fit_a_Cat_Flap_in
Installing a cat flap on your door is a relatively easy process. However, you'll have to be aware of a few things prior to beginning. You can put up Upvc panels that have a cat door without cutting the wall or door. Many glass companies provide them with holes that is already designed for a pet-door. 1. Safety The cat flaps made of upvc are easy to install and put on different doors. They are energy efficient and weatherproof and have a draft excluder built-in that helps to seal the opening. They are also fireproof an