Appliance Doctor's on Scottsdale Road have fixed two refrigerators for us. They were quick and professional and very reasonably priced. I would highly recommend them for any Appliance repair.
The first refrigerator they repaired was a KitchenAid built-in model. They replaced the entire guts of the refrigerator. This was approximately two years ago and it is still working perfectly.
The second refrigerator, a GE Profile had a problem with the freezer door closing. It now works perfectly as well.