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A upvc panel with a cat flap can minimize draughts in your home. By keeping your pets warm and cold air out you can save money on heating bills. It is possible to put cat flaps into both upvc panels and double glazing glass sealed units, however it can be more difficult than timber doors. This is because upvc comes in different thicknesses. Benefits A cat flap attached to your door is a great way to keep your pet inside or out of the house while allowing visitors to enter. It also keeps out unwanted pests and stray animal