I have been using Miller's Heating & Air for about seven years now, ever since they installed my HVAC system, and they arrive when they say they will, they have reasonable rates, and they do good work. They've kept our system working nicely, and one of their techs came out recently to do their annual checkup. Everything went just fine. The technician was quite knowledgeable, friendly, and maintained all of the correct COVID-19 protocol guidelines. He kept the area clean and checked everything carefully. He was on top of it all and communicated effectively. They have a good reputation, they're the most familiar with our unit, and they've never given me a reason to go elsewhere. I've recommended them to others and expect to continue using their services.