https://king-wifi.win/wiki/Cho....osing_Cat_Flap_Insul
Are you fed up with having to climb up and down to open the door to let your pets in? A cat flap may be the solution. Pet-flap fitters can put them on any type of door including uPVC or composite doors. They can also install them into some types of walls. Security Cat flaps are often used to cover doors, however many also have them installed in windows or double-glazed doors. If you don't have a wooden wall or door or window, installing one in glass is a great idea. It's also a great solution for renters. You'll need a glazier ins