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Double glazing can be fitted with flaps for dogs and cats to allow your pets to come and leave whenever they want. They also help in keeping an eye on your pet whilst you are away from home. You can install a cat flap in an existing uPVC or double glazing sealed unit. However, you will require a new part with 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 option for allowing your pet to have free acc