I have used Complete Comfort Heating and Cooling a few times before. This last time, they serviced my furnace and came back later because they had to replace a part in it. It all turned out fine. I was very pleased with the technician for being very honest about the furnace. I told him what it had been doing, but it wasn't doing it when he was there. He said he had an idea about what it was, but didn't want to just start tearing a bunch of stuff apart or replacing things on a hunch. When it started doing it again, they came out and replaced the part. I had a good overall experience, and I would definitely recommend them!