I contacted DAC Heating and Air for a comprehensive diagnosis for our dual unit a/c as it hasn't been working as well as it should. We had another company make 2 repairs within the past 2 years, as they are older models, and they recommended that we need to replace the motor which is pretty expensive. Javier, Ivan and another young man came to diagnose the situation and boy were they THOROUGH! They took their time, they inspected EVERYTHING! They checked both a/c units (while it was hailing/snowing) took pics, then came inside and checked the heating in the attic, plus they changed my filters which I hadn't had a chance to do yet...who does that?? DAC does!! They were incredibly nice, professional, knowledgeable and explained everything in detail to me....they broke it down so I would understand and didn't throw a lot of terms like other companies do. I have to say, I sincerely appreciated that the most. Turns out we don't need a motor after all, some simple re-wiring of the upstairs unit. Not only are they saving us a hundreds of dollars but are saving us a lot of headaches in the long run. I HIGHLY recommend DAC Heating and Air for all your needs. They are amazing...I promise you will not be disappointed. Thank you again for everything!!!