I was initially a bit hesitant about hiring Green Air Care based upon the yelp reviews... 3 1/2 stars is fairly low in my opinion. However, I did hire them... and I was extremely satisfied with the service provided and would highly recommend them for anyone looking to have their furnace and ductwork cleaned.
The whole process was flawless... When I called on the phone for ", the woman who answered provide me a detailed overview of the process, a detailed price quote, and a reasonable timeframe window of when the workers would arrive at my home.
A team of two workers came, and they were extremely knowledgeable and polite... They were careful to not drag their ladders across our hardwood floors and not to bump their equipment into our white walls. The whole process took less than two hours, and there were before and after photos taken to show just how much cleaner the ducts were after the process. The workers also replaced my furnace air filters upon my request. Additionally, they noticed that the filter on our humidifier had not been changed and was collecting, I believe, calcium deposits... They recommended a replacement in order to prevent damage, and not to use the humidifier until the new filter was in place.
Overall, I was extremely satisfied. Although I received quotes for a lower price, I am definitely comfortable with the service I received for the price paid. For what it's worth, Green Air Care is also NADCA certified, and the lower-priced service providers were not.
I should also say that I initially planned to use Stanley Steamers... apparently they can clean ductwork and not just carpets. I had a team come out to give me a quote, but when the actual team came out to do the cleaning, their equipment would not work on my furnace. Needless to say, I was quite annoyed... But that's what I get for trying to hire a carpet cleaning business to clean my HVAC ducts.