I contacted the Comfort Authority with concerns about AC and duct work. I am an allergy sufferer so my primary concern was the health of my duct work. Secondarily I am concerned about my energy bill like everyone else.
I was very impressed with the Comfort Authority, and I had high expectations since both workers are engineers. Their evaluation of my situation was very through. They opened my air handler, crawled around my attic with a thermal imagery device, and took pictures of all their findings (thermal and true color pictures). I am awaiting their three scenario proposal as I asked for three outcomes - clean the duct work, replace duct work, replace AC and duct work.
Both young men who came for the evaluation of my AC were very knowledgeable. They took time to explain all of their concerns as they showed me the results of the thermal scans in real time on an IPad. I could see temperature differences where there were leaks in my duct work, air handler, vents, and even recessed lighting.
I have to say this was much better than someone just poking their heads up into the attic to see the air handler condition and manufacture date. I mentioned that they crawled through every inch of my attic with a thermal imager. They also measured every room and made a sketch of my home layout in order to calculate the size and placement of where each vent should be. A far cry above a one size fits all tube to every room.
I have not received the quotes, and therefore have not decided which AC Company to use, but so far I have been most impressed with the Comfort Authority.