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Double glazing can be fitted with flaps for dogs and cats that allow your pet to leave and come as they please. They are also great for keeping an eye on your pet when you are away from your home. It is possible to install the cat flap onto an existing uPVC panel or double glazing glass sealed unit, but you'll need a replacement piece that has a hole already made. This can be done by a glazier equipped with the right equipment and training. Easy to install A cat flap is a great option to allow your pet to have acc