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A upvc door panel with cat flaps can help lessen the draughts inside your home. By keeping your pets in and keeping cold air out, you can save money on heating bills. Although it is possible to install a cat flap on double glazing as well as upvc sealed units, it can be more challenging than with timber doors. This is due to different thicknesses of upvc. Benefits Having a cat flap fitted to your door is a great way to keep your pet safe or out of the house but still allowing guests to enter. It