https://perfectworld.wiki/wiki..../Installing_a_upvc_D
Cat flaps are an excellent way to allow your pet to come and go at their own pace. You can also opt for a locking cat flap to prevent other cats and animals from gaining access to your home. It is possible to install a cat flap in bifold doors, so it is constructed of toughened glass and the frame isn't damaged or rotten. The process is similar to installing a cat flap on an old wooden door or uPVC. Easy to install Install a cat flap onto your bifold door to permit your pet to exit and enter the house without you havi