I am building my first home and my hvac contractor bid the job using American standard equip. I also had others bid with am. standard as well to compare apples to apples. Now that my home just got through the phase where my furnaces and a/c units were installed he uses comfort aire. I am not as familiar with comfort aire but wanted to get a sense of how they would compare to American standard In quality, warranty , and price. Im not sure if he used comfort aire to try and make more money on the job or what but I'd like to find some opinions from guys who use this equip and service it regularly. I have a 13 seer 2.5 ton and a 13 seer 2 ton ac unit and 2 92.5 efficiency furnaces. I am to the point I do not want them pulled even though the on ac units compressor was bad and they already had to replace it but I want to make sure I'm not getting dicked around. The guy has a pretty well known business but he was newer to new construction. And he had his hvac guy quit half way through the job. Which took him way to long to do to begin with. Any help would be appreciated.