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A upvc door panel with cat flap can help to lessen the draughts inside your home. You can save money by keeping your pet inside and the cold air outside. Although it is possible to install a cat flap in double glazing as well as upvc sealed units, it is more difficult than installing timber doors. This is because upvc comes in different thicknesses. Benefits A cat flap that is attached to your door is a great way to keep your pet safe