We are so impressed with this company! We added insulation, had our ducts sealed, and they found that the ducts in our almost hundred-year-old home were lined with asbestos. It showed the air quality was fine, and was not getting into the air we breathe however, if it was ever disturbed, it would become a problem. It was easily encapsulated and problem solved, and now we have documentation if we ever decide to sell. Everything they did they were able to substantiate and show us the evidence of how our energy use changed. When we saw how much dirt came out of our ductwork , we were astonished! It also was a very fair price for everything, much less than the other estimates we got. They did the job quickly, their crews were very clean and cleaned up after themselves, and it was a pretty big job all the way around. I can’t say enough about this company! They are the best at what they do!