We had a new air conditioner installed in our house a few weeks ago. The house had never had AC just heat and we were told our existing heater was quite large but they were able to reroute the ductwork some to make it fit which was a lot cheaper than buying a newer, smaller heater. It took them 2 and a half days to finish and they were very professional the entire time - always on time and kept a good pace. We were also mailed a box of cookies a week later as a thank you for our business... That was a surprisingly nice gesture. If you are in the market for a Nest thermostat, they installed ours with no issue or extra cost. I would recommend them to anyone and use them again in the future.