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Double glazing can be fitted with dog and cat flaps to let your pet leave and come at their own pace. These are also great to keep your pet safe while you're away. It is possible to install a cat flap into an existing uPVC or double glazing sealed unit. But, you'll require a new part with an opening already made. can accomplish this with the proper equipment and the right training. Easy to install Having a cat flap in your home is a great option to allow