https://sciencewiki.science/wi....ki/Cat_Flap_Installa
If you would like to allow your pet to come and go as they please without opening the door, you can install a cat flap. You should hire a professional to install the cat flap. They will help you navigate the complicated process of putting different kinds of cat flaps into various doors and walls. Installation A cat flap lets your pet to enter and exit the house as they please, without you needing to open the door or window for them. The variety of pet flaps available on market is huge, from bite-proof and mic