Comfort Heating and Air is my choice for air conditioning and heating repair. They also sell units, though. I have never bought a unit from them; I have only used them for air conditioning and heating repair. I was very pleased with their service. The prices were great! I loved the professionalism the workers had. They were very prompt and came exactly when they said they would. I was very impressed. In fact, they were so prompt that I told them they were in exactly in tune with my watch done to the almost second LOL. I have not had any problems since their repair, and so I will be using them in the future if the need arises.