Most existing homes have small leaks throughout their duct work that causes these problems. These leaks don't allow proper airflow to every area of the home, meaning you are paying to heat and cool your walls and attic while the liveable areas of your home remain uncomfortable. Those small leaks also cause dust and other particles to be sucked into the air ducts and blown throughout your home, upsetting those with allergies and leaving dust everywhere!
Until now, fixing these problems has been extremely time consuming and costly, and only the ducts that were exposed could be sealed. Meaning that the vast majority of the air ducts remained unsealed and leaking.
Consumer reports lists air duct sealing as the most effective way to reduce home energy costs. This can save homeowners hundreds of dollars every year!