https://zenwriting.net/dugoutl....eaf43/using-upvc-cat
You're tired of having to stand up to open the door for your pet. A cat flap may be the solution. Pet-flap installers can put them in any type of door, regardless of whether it is uPVC, composite or composite. They can also be installed in a variety of wall types. Security It is not uncommon to see cat flaps installed into doors, but there are many who have them incorporated into windows or double-glazed doors. If you don't have a wood door or wall installing one into glass is a great idea. It's also a great solution f