First let me say that I contacted Michael and Sons to have my unit diagnosed. We have limited cold air. Technician stated it needed more Freon -yet with zero success. Then the technician stated we needed to move a filter from outside to inside. It seemed they were guessing or using process of elimination. And every move he called his manager. We lost all confidence in this company. Through a friend, I called a company called Airsys, Inc in Manassas. They came out that day (not the norm) to assess our AC unit. With pictures and language I could understand-they had corrected the first problem. Our unit outside had muck and dirt caked on the metal vent which they cleaned. Second problem was it needed a new kit TXV, I believe was the name to replace an old piston in the inside unit. They had to order the parts and came back days later to fix the inside repair and to replace and recharge the unit. We now have cold air!!!! These technicians, Jason and Justin are amazing!! Quiet, polite and new what they were doing. I am thoroughly impressed by this company and will continue to use their services for maintenance upkeep. Wow!! read more