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Double glazing can be fitted with flaps for dogs and cats that allow your pet to go and go as they please. They also help in keeping an eye on your pet whilst you are away from your home. You can install a cat flap in an existing uPVC or double glazing sealed unit. But, you'll need a replacement part with an opening that is pre-made. A glazier can accomplish this with the proper equipment and the right training. Easy to install A cat flap is an excellent alternative to allow your pet to have free access to the ou