Safety King is now offering Aeroseal Duct Sealing. We are the first Aeroseal Contractor in the state of Michigan. Aeroseal is a process for sealing leaks in air ducts from the inside. It can save as much as 20% of heating and cooling costs annually by substantially reducing energy losses due to leakage. First the air ducts are cleaned, then tiny aerosolized polymer particles are pumped into the ducts under pressure. These particles stick in place at the edges of leaks, gradually sealing leaks up to 1/2″ wide. Call 1-800-AIRDUCT today for your free on-site estimate.