https://botdb.win/wiki/Adding_....a_Composite_Door_Cat
Double glazing can be equipped with cat and dog flaps to allow your pets to come and leave as they please. They are also great to keep your pet's attention while you're away. It is possible to fit a cat flap inside an existing uPVC panel or double glazing glass sealed unit, but you'll need a replacement piece with a hole that is pre-made. This can be accomplished by a glazier equipped with the appropriate equipment and experience. Easy to install A cat flap installed in your home is a great way to allow your pet free access to the