Have your air ducts sealed by Safety King using their ultra-effective, “from-the-inside” duct sealing process called Aeroseal! A significant fraction of your heating and cooling system efficiency ($$$) is lost because of leaks in your air ducts. The Aeroseal process seals up the leaks from the inside. Millions of tiny polymer particles are pumped into your ducts and seal up the leaks as they try to exit the duct through the leak openings. Click on the image below to see a ten-minute video on the process.