I needed the water pump on my furnace replaced, so I decided to contact Colorado Discount Heating and Cooling. Their customer service was great! The technician who came to do the work was really knowledgeable. When he knew what he was doing, he said so. If he didn't know what he was doing, he was very honest and asked for help. I really appreciated that.I found that they were also really reliable in showing up on time. I did think the pricing was high compared to others. However, he gave me a significant discount after I asked for it. If you are thinking about using them, make sure you compare prices, and if it seems too high, ask for a discount. Overall, good work.