I had Ultra out the other day because my furnace stopped working. They came out quickly and fixed my furnace. Unfortunately, right after they left, my furnace stopped working again. I called them again, and they rushed back to my house. Turns out the issue was something they had never seen before. Instead of charging me full price, they credited me the price of the first part, and I only paid the difference for the second part. Our house is nice and warm, and I am very happy with their dedication to fix my furnace and their fair prices. A++++++