https://skafte-agerskov-3.tech....netbloggers.de/cat-f
https://www.openlearning.com/u..../hatcherpike-smybz8/
Double glazing can be fitted with dog and cat flaps to let your pet leave and come as they please. These are also great to keep your pet's attention when you are away. It is possible to put a cat flap into an existing uPVC panel or double glazing glass sealed unit, but you'll need to replace the piece that has a hole already made. This can be accomplished by a glazier equipped with the appropriate equipment a