https://squareblogs.net/circle....july1/adding-a-compo
It is possible to install a cat flap in the door panel made of upvc or double glazing glass sealed unit however the best choice is to purchase a brand new pane of glass with a premade hole installed. Follow the instructions provided with the kit. Make sure the drawing accurately represents the shape (circle or square). Safety A microchip-activated pet panel inside your door made of upvc is a great option for those who have a dog or cat and wish to let them out into the garden, but don't want to leave the door open. It