My dog flap is on its last legs with 5 little terrors charging in and out. Are they easy to change etc? Usual cat size as they all fit through and don't want to have to for a bigger hole cut in the door
It really is easy, I take mine out to clean it a couple of times a year but it does help if you have somebody holding one side steady on the other side of the door while you screw the two sides together.