I really appreciate how honest they are at Airsmiths Home Performance. I used them twice now, but the most recent visit was to my other property up in Sacramento. I sent them there without my being present and they could have told me anything or charged me anything. I had them address a noise that was coming from the air conditioning unit and the furnace, simply to troubleshoot the issues. The company was so honest that the technicians called me and told me it was a simple fix and it was not something more expensive. The experience was a very positive one and I would definitely recommend them to others. I plan on sticking with them!