Cornerstone Air Conditioning

Cornerstone installs, repairs and provides preventive maintenance service for commercial, State and Federal facilities. We provided quality preventive maintenance and 24 hour on call service for our maintenance customer. They are one of the most dependable and forthright contractors I dealt with in my twenty plus years as a contracting officer. You can count on them for a fair price and excellent service. Whether the job was small or large you could depend on their professionalism and workmanship. I highly recommend.