You may want to add foam weather seal on the back of the pet door frame, to get a barrier between the frame and the door or wall where it’s installed. If the door still freezes shut, you can use heat tape on the frame. Your local hardware store will know which products are safe to use.
How do you make a dog door less drafty?
On some pet doors, you can install plastic or rubber brush strips designed to fit in the doorframe around the flap. These brushes help reduce drafts.
Can burglars get through dog flaps?
With that said, can burglars get through dog flaps? Yes, it is 100% absolutely possible for burglars to get through dog flaps. Now, there are precautions you can take to prevent being victimized by a person willing to crawl through a doggie door (or at least try to crawl through a doggie door) to break into your home.
Are dog doors dangerous?
If you have a large breed that requires a large dog door, you have created a potential entry point for burglars. It is possible for a human to squeeze through one of these doors, especially if your door is large enough for a husky or German shepherd to get through.