We've recently moved into a new house and are trying to work out the best way to include a cat flap for our two roamers.
Our initial plan was to put one in the side door, but this is a panelled UPVC door, which makes it incredibly awkward to cut out and reseal around a cat flap as the panels have quite substantial ridges.
We're tossing up between getting a cat flap installed in a window, which would mean the cats would have to learn to climb up and through, or finding a builder to remove a couple of bricks and make a tunnel through an external wall.
Has anyone made a tunnel through a wall? It would be at the back of the house in a very sheltered spot.