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A door made of upvc that has a cat flaps can help lessen the draughts inside your home. By keeping your pets inside and cold air out you can reduce heating costs. While it is possible to install a cat flap on both upvc and double glazing sealed units, it is more difficult than installing timber doors. This is because upvc comes in a variety of thicknesses. Benefits A cat flap attached to your door is a great method to keep your pet safe or out of the house but still al