My furnace would not start, so I used a promotion from a big box store. They sent two techs who could not or would not diagnose the issue and proclaimed the system not worth trying to fix and I should replace it. Their sales person used pressure sales tactics to try to sell me a new system. Chris from Central Comfort came in first thing in the morning. He was professional and polite. He was able to start the system in minutes, tuned it up for efficiency, and told me about its features. I am extremely happy with Central Comfort and they made a customer for life.