I have a whole home warranty which covers my HVAC system, however when I have issues with my AC, the other company never seems to get it right. Through many negotiations with the warranty company I was able to use the company of my choice and I have chosen Comfort-Air to take care of my HVAC needs. They always do an excellent job, and I highly recommend. Tech, Luis Huerta who was here last, displayed the knowledge and expertise which I always expect and get with Comfort-Air.