Need a little help wading through the marketing and sales mumbo-jumbo. I am the new owner of a 1950's era house that seems to have quite leaky ductwork. It is all rigid metal and about 1/2 of it appears to have been newly insulated within the past several years. At the seams of insulation I can feel very faint wisps of airflow. Since I can only easily access some short runs of the ductwork, I am assuming my issue could be large scale considering the sprawling ducts! If it matters, the scale of the job is about 3000sqft served by a new 5-ton system.
To make a long post short - I need a little feedback from you guys on what duct sealing methods are the most cost effective. Thanks in advance.