This was my first time using Summit Heating & Air Conditioning, and I am pleased. I had them out on a service call because I was having an issue with my unit. The pilot thermocouple was dirty, and they came out to repair it the same afternoon I called them about it. They were pretty quick. Everything turned out good. So far, knock on wood, everything is working fine. I have an old system, the original one that came with the house, and they did a great job fixing it so I'm going to give them an opportunity to give me an estimate to install a new one when it's time. They were quick, sweet, and short with the job, and everything was good.