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Double glazing can be fitted with flaps for dogs and cats that allow your pet to go and go whenever they want. They are also great to keep your pet safe when you are away. 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 already made. This can be accomplished by a glazier with the right equipment and training. Easy to install A cat flap is an excellent option to allow your pet access to the outdoors without having to shut and open your doors. There a