https://mozillabd.science/wiki..../Cat_Flap_Glass_Door
Adding a cat flap to your door panel is an essential task to be handled by a professional. The doors are typically made of a thin plastic exterior that is bonded to an insulate, soft polystyrene core. It can be difficult to cut through these materials. It is much simpler to install the cat flap inside an existing glass pane, or have the hole prepared in a door. A Glazier can do this for you. Easy to Fit If you have a cat and want to allow them to enter and exit without having to leave your home, upvc door panels ar