Do you need a pet door for your dog or cat, take a look at what the folks at Pet Doors USA have to offer. They have doors in all sizes, colors and styles to make it easier for your dog or cat to go in and out of the house. You can install the pet doors in windows, patio doors, front or back doors and more. They also have kits available that electronically unlock the door whenever your pet is near (your cat or dog wears a collar) to keep raccoons, skunks or other animals from coming in. Visit Pet Doors USA.