The big 5! And SO deserved. I don't know why I did not write a review before, I have been a customer of theirs for years. From initial install (no pressure, honest answers AND leaving the final decision to me as well as giving me ALL the options I wanted or could think of) to yearly service, working with my schedule, reminders if you want them, discounts if you are a regular customer AND also telling you when the utility company is giving deals so you can take advantage of them. Everyone is just wonderful. Don't get me wrong, they are super professional and great installers and technicians, and office staff, yet you feel like family. Difficult to explain but I NEVER worry about my A/C or heat anymore. They even change the filters for me. No biggie for you tall peeps, but I'm a shorty. I LOVE AHR and I am SO glad I found an honest, reliable and highly proficient company. :). BRAVO. BRAVO!