When we lived in Goodyear, we used the "Pet Stop" grooming in Litchfield Park. They groomed our 3 lb Buster from his first grooming until we moved away. We were there a few weeks ago and they are still located in their original location in Litchfield Park.
Here's a link to their web site:
Welcome to - " The Petstop" Pet Grooming in Litchfield Park Arizona