Keith would check up on our air conditioning units and heating system every year until he was injured and could no longer climb up onto the roof. He recommended Clean Air Heating and Air Conditioning. The HVAC technician who came out was named Trey, he seemed new since he was pretty unsure of himself and had to keep calling into the main office. When he went onto the roof to check out the air conditioning unit he didn't take my advice on where it was and ended up damaging the roof. He said he would report it to the main office and Clean Air would send out a roofer to fix my roof. I still haven't heard back from them and am waiting on a call. Other than that, he cleaned out the filters and added some new freon to the unit. I would use Clean Air again since we trust Keith's opinion on them being the best.