I recently had a message displayed on my thermostat, informing me that something wasn't right, so I went ahead and called Complete Comfort Heating and Cooling for service. Josiah came out, I believe the same day I called if not the day after, and was not only able to quickly diagnose the problem, but order the part that was needed for my furnace. The part was delivered the following week, and once it did, Josiah came back to install it, which took him about fifteen minutes. He not only did a really nice job, but Josiah is also very friendly, and he represents the company very well. I've been using them ever since they installed our system over ten years ago, and always use their services for troubleshooting and maintenance. I would definitely use them again, though with some hesitation on holidays or on the weekend, as I have called them for a problem before, during the holidays, and ended up needing to use another company, as they had no one there. But, when they're here, they do a very good job.