This company charged us $87.50 for diagnosing work that we were told Signature Homes - our builder, would cover but it ended up being our responsibility. Do a search for Lenox defective coils. It's a widely known problem in which there are lawsuits underway. The technician came in and pretended he knew nothing about defective coils but found a leak in 5 mins then induced a service charge of $87.50. This company served as a contractor to Signature Homes is now making a fortune ($500 labor cost) on replacing defective Lenox coils in our neigbhorhood. This company is not trustworthy. Be aware!