https://marvelvsdc.faith/wiki/....Cat_Flap_Fitters_Nea
https://pediascape.science/wik....i/Cat_Flap_Glass_Doo
https://chessdatabase.science/....wiki/Cat_Flap_Instal
If you're looking for a method to let your pet in and out without worrying about them leaving unwanted "gifts" within the home look into a door panel made of upvc with a cat flap fitted. This is less expensive than replacing the whole door and easier to install. It is possible to install an animal flap on your own uPVC doors however, it's an extremely difficult task that can lead to cost