https://elearnportal.science/w....iki/Cat_Flap_Double_
You could consider installing a cat flap on an upvc panel door for those who want to let your pet enter and exit the home without worrying that they will leave unwanted "gifts". This option is cheaper than replacing the entire door and easier to install. While it is possible to install a cat flap in your own uPVC door, you need to understand that this is a challenging job that could lead to costly errors. Easy to install When you have a pet or a cat living in your home, it's important to be able to let them in and out of your ho