SEVERAL technicians have checked our system over the past years and we have told them about an issue. The only response we ever received was " you have to replace your duct work at around $3,000.00." Britton actually listened, got BACK in the attic found and CORRECTED the problem within a couple of minutes. He then worked with me to get the air flow exactly how I wanted it in every room of my home. That is the type of customer service we appreciate. I was very disappointed to learn that apparently no previous technician ever really checked the issue.