I had three people work on my unit last year all total spent 1,500 bucks. Never was fixed, called the last guy back and told him I wasn't paying his bill till my unit worked right, he came back out only to find out that a squirrel had eat a hole in the duct work coming off my unit. So he was able to trim a little off the duct work and pull it back over the lip and reclamp. And like I said this was after 1,500$$$$ worth of parts and labor. There is a lot of people in the hvac industry that are straight out crooks in my opinion. Being in business for myself I understand people make money but wholy crap, how much overhead could they have, a truck and some tools. I have to have huge building and all kinds of machines and cant make what they make in an hour,( NOTE to self: I might be in the wrong business!!!!)