In a desert full of mirage's these guys are the REAL THING. One of our rental homes had an upstairs unit go down. The problem was in the attic unit. I would have paid just about anything to get it going before weekend got here to save my tenants from camping out in the downstairs for multiple days. The tech was there, analyzed the problem called it in, the office kept me on the loop so well it was like being at the house. It took a couple of try's/ideas to get the 30+ yr old unit going but they did it in record time and at a very acceptable cost!!! Use this company!