The answer to 'what is air duct sealing' is sealing the air ducts in your home to improve the efficiency of your HVAC system. Air duct sealing involves identifying and repairing any leaks or gaps in the ductwork that can cause air to escape, which reduces the overall airflow and puts more strain on your heating and cooling equipment.
Proper air duct sealing can improve your home's energy efficiency, reduce your utility bills, and help your HVAC system operate more effectively. It's an important maintenance task that can extend the lifespan of your heating and cooling equipment and improve the overall comfort of your home.