https://elearnportal.science/w....iki/UPVC_Door_Panel_
If you're looking for a method to let your pet in and out without worrying about them leaving unwanted "gifts" within the home you should consider purchasing a upvc door panel with cat flap fitted. This option is cheaper than replacing the entire door and is simpler to install. While it's possible to put an animal flap inside your own uPVC door, it's important to understand that this is a difficult job and could lead to costly errors. Easy to install When you have a cat or dog in the house, it's important to be able to let