A1 Air Conditioning & Heating

I called A1 for a second opinion on a cracked heat exchanger diagnosis by another company that I called for a service on my furnace. The technician found that my furnace had been incorrectly set up previously as 1 stage when the furnace is in fact a 2 stage furnace and also found that the wiring setup for my Nest was not correct either and that there was no other issue with the furnace. The technician was there for more than 1 hour and the cost was still only about half what the other company I called charged me for less than 1 hour of the technician being there.