https://wifidb.science/wiki/In....stalling_a_Cat_Flap_
Installing a cat flap on your door's panel is an essential task to be handled by a professional. These doors are typically constructed of a thin plastic exterior that is attached to an insulate, soft polystyrene core. It can be difficult to cut through these materials. It is much simpler to put the cat flap inside an existing glass pane or have the hole prepared in a door. A Glazier can do this for you. Easy to Fit Upvc door panels can be a great option if you have a cat at home and want to let it in and out of your