A cat flap can allow your pet to go and come whenever they like. But if it's not fitted properly, it could let heat escape and could also allow other small animals into your home. Local Taskers are experienced in installing cat flaps and are able to do it quickly https://cat-flap-in-upvc-door-pan85418.ltfblog.com/30019905/using-a-cat-flap-in-bifold-doors