https://hutchison-robbins-4.fe....deratedjournals.com/
https://anotepad.com/notes/mhp9ndj9
Double glazing can be fitted with dog and cat flaps to allow your pets to leave and come at their own pace. They are also great to keep your pet's attention while you are away. It is possible to fit a cat flap into an existing uPVC panel or double glazing glass sealed unit, however you'll need to replace the piece with a hole that is pre-made. This can be accomplished by a glazier equipped with the right equipment and training. Easy to install A cat flap