Comment: So sorry I had to rate your Competence as "fair." We liked your servicemen, very nice and polite, but in cleaning our central heat/ac, they left a wire loose. While our air conditioning worked just fine, the furnace would not come on. We called our Air Conditioning repair man. He spotted the loose wire immediately, re-attached it and the furnace, then, worked perfectly. We were not charged for his service. Otherwise, we think the ducts, etc were well cleaned.