Weatherproof dog doors come in many styles and mounting options and are very effective at conserving a home's energy. But if you live in an area where you fully expect high winds and extreme temperatures on a regular basis a weatherproof dog door for walls is recommended. That's because in addition to features on a weatherproof dog door, the amount of space between your walls is an excellent added layer of protection, especially from wind.
Some people cringe at the thought of cutting a hole through a wall, but it really is not a difficult project. Any skilled handyman should be able to install one for you quickly, easily and inexpensively.