https://wizdomz.wiki/wiki/Cat_Flap_Installers
It is recommended to hire an expert to install a cat-flap at your home. DIY projects usually result in poorly fitted pet flaps that allow in drafts and result in more energy costs. SheffLOCK is able to put a cat flap on all kinds of doors, such as wood, uPVC composite, glass and even exterior walls. On average, it takes about two hours to install a cat flap. Cost of the pet flap A pet flap permits your cat to move around whenever it wants. If the flap isn't properly installed, it will let heat escape from your home, and even let other anima