How to Install a Pet DoorPet doors are a great way to help your pet easily go in and out as they please. Pet doors also make your life more hassle-free so you can worry less about letting your beloved furry friend go in and out of the house. Luckily, installing a pet door by yourself is an easy do-it-yourself project that requires some basic tools and skills. You and your pet will both be happier with the extra freedom and more time to be active outdoors.