https://zenwriting.net/incomet....iger4/fit-a-cat-flap
It is possible to put a cat flap in the door panel made of upvc or double glazing glass sealed unit but the best solution is to buy a new pane of glass with an already-made hole. Follow the instructions provided with your kit. Make sure that the template illustration accurately depicts the shape (circle or square). Safety If you have a dog or cat and would like to let them into the garden without having the door open, a microchip activated pet flap inside your upvc door panel is a great choice. It will allow your p