I think Alaskan Air Conditioning & Heating did a fantastic job. They put in my new furnace in 2011 and we went to sell the place recently and from the time we moved out about two months later it had a slight leak, it was very slight but he came out and he put it in stuff that plugged the leak and let us know he did it. The guy was very gracious and just a really nice person, I don't think there was anything they could have been better at. I have already recommended them.