https://blogfreely.net/sponges....now0/cat-flap-instal
It is possible to fit a cat flap in a upvc door panel or double glazing glass sealed unit however the best choice is to purchase a brand new glass pane that has a premade hole installed. Follow the directions included in your kit. Make sure that the shape you have drawn (be it a square or circle) is accurately represented on your template drawing. Safety A microchip activated pet door in your upvc door is a great option for those who have a dog or cat and wish to let them out into the garden, but do not want to leave the doo