https://trade-britanica.trade/....wiki/Cat_Flap_Instal
Upvc is a very popular choice for home doors. They are durable and easy to maintain. However, they could be a hassle to install with an animal flap. Most of the time, a replacement upvc panel with a cat flap is the best option. It is easy to install and is less expensive than a full replacement door. Safety uPVC panels with cat flaps allow your pet to move into or out of your home without opening the door. These panels are available in a range of styles and can easily be adapted to fit any door frame. They are also energy ef