I found Dakota Air Conditioning & Heating online, and after reading their reviews and checking them out on the BBB, we decided to give them a try. We had them put a new heater in. When they were finished, there was a pipe that came down that we did not like the look of, so we called them back about it. They were very responsive and easy to deal with! They came right back and took care of the issue for us. I'd definitely use them again. I recommend them to anybody!