Our heater was blowing cold air so we called Fuller Heating, Air Conditioning, Plumbing & Electrical to come out and look at it. We had never used them before but we had heard good things about the company. Their service man showed up right on time and he went to work. He had to replace something inside the unit but he had the work done very quickly, and the heater started blowing hot air again. He was very nice and very professional and he did a great job for us! We highly recommend Fuller Heating, Air Conditioning, Plumbing & Electrical to everyone!