Welcome to Interstate Heating and Air Conditioning, the most trusted HVAC company in Oklahoma! All of us here at Interstate know how important it is to keep your home at peak comfort. That’s why we promise to go the extra mile to guarantee your satisfaction. Our reliable, certified technicians will have your home’s heating and cooling system running efficiently all year round. Whether it’s summer or winter, day or night, Interstate will put you on the road to comfort. read full review »