Someone from Assured Comfort Heating and Air came out and explained a bit about our heating system to us. It was making a noise I was concerned about and I asked him about it. The gentleman that came out yesterday, he explained why it was making the noise. There weren't any repairs needed. They did charge me for the visit, but the woman I spoke to when I called said that they would, so it was fine. I was just glad to figure out what was going on.