Everything was pretty good with Colorado Discount Heating and Cooling. The one thing that keeps me from giving them 5 stars is the fact that they gave me a time frame of 10 to 12, then didn't show up until 2:30. I had to call them to find out when they would arrive. They kept telling me they would be here in a half hour. They did this for more than 2 hours. Once they did arrive, they replaced my furnace. They did a good job at that. I would recommend them.