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Cat and dog flaps installed with double-glazed doors make it easy for your pets to come and go whenever they like. They are also great for keeping an eye on your pet when you are away from home. It is possible to install a cat flap into 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 do this using the appropriate equipment and knowledge. Easy to install Installing a cat flap inside your home is a great way to give your pet acces