https://blogfreely.net/troutca....ll89/adding-a-cat-fl
Installing a cat flap on your door is a crucial task to be handled by an experienced professional. The doors usually have the plastic exterior, which is thin and flimsy, and then that is bonded to a soft insulating polystyrene core. These materials can be hard to cut. It's much easier to install the cat flap inside an existing pane of glass or have a new door made with the hole already prepared. A Glazier can do this for you. Easy to Fit If you have a cat and you want to let them in and out without having to leav