Hix Air Conditioning Service, Inc. was established in Muskogee in 1985. Our founder, David Hix, is currently the president of Hix Air Conditioning Service, Inc. David had worked in the heating and air conditioning business for over 10 years before starting his own business. Now the company has more than 15 very qualified and licensed employees. Through the years, we have prided ourselves on excellent customer satisfaction, and we are always looking for ways to improve.