Absolute joke. "Specialize in duct work" "bring down your utility bill". These guys specialize in saying they care in the health of your family and well-being of the air in your home, which having young kids, they know how to work you. It has been 5 years and THOUSANDS of dollars with promises of lower utility bills and better air quality with no change in any of the above mentioned. These people are crooks. Go somewhere else with your air concerns.