https://articlescad.com/fit-a-....cat-flap-in-a-upvc-d
https://zenwriting.net/linenbe....rry4/cat-flaps-for-f
You could consider installing a cat flap on the door made of upvc for those who want to allow your pet to enter and exit the house without fearing that they will leave unwanted "gifts". This option is less expensive than replacing the entire door and is simpler to install. While it is possible to put a cat flap into your own uPVC door, it is important to understand that this is a tricky job that could result in costly errors. Easy to install If you