The Qualifications to Give You Peace of Mind At Air Engineers Service Experts Heating & Air Conditioning in Jacksonville, we’ve been assisting the community since 1965 and all of our technicians and equipment installers are licensed, highly qualified and NATE-certified. We encourage you to study NATE certification and all it entails. It’s a highly-touted credential that our service folks have earned through education, expertise, extensive training and testing. So if you should need HVAC service or repair, don’t just call some guy with a few wrenches and a truck. Call 904-450-5672 for Air Engineers Service Experts Heating & Air Conditioning in Jacksonville. We have all of the top qualifications to provide expert furnace and AC repair and service. And all of our work is 100% guaranteed for a full year!