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Cat flaps are a great way to allow your pet to leave and come at their own pace. You can also opt for an enclosed cat flap to stop other cats and animals from gaining access to your home. Installing a cat flap to a bifolding doors is possible provided that the door is made of toughened glass. The frame should not be damaged or rotten. The process is similar to installing a cat flap on a wooden door or uPVC. Easy to install A cat flap added to your bifold doors allows your pet to go inside and out of the house without hassle,