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Cat and dog flaps installed with double-glazed doors allow your pets to go and come whenever they like. They are also great for keeping an eye on your pet whilst you are away from home. You can put in a cat flap into an existing uPVC or double glazing sealed unit. But, you'll require a replacement part that has an opening that is pre-made. A glazier can accomplish this with the right 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 outdoors with