HVAC EXPERIENCE YOU CAN DEPEND ON When your HVAC system isn't working properly, the last thing you want to do is hire an inexperienced HVAC contractor. Holliman's Air Service is owned and operated by Mr. Clay Holliman, aka "Cowboy Clay." He has over 30 years of experience in the heating and cooling business. Clay has NATE (North American Technician Excellence) certification. He is also a member of the Air Conditioning Contractors of America, a premier Energy Star partner and is recognized by the Better Business Bureau. You can trust that when you choose us for HVAC service, you and your property will be in the best of hands. Learn more about what we can do for you by contacting our office today.