The answer to 'when to service air duct sealing' is to have your air ducts professionally inspected and sealed every 3-5 years, or if you notice any signs of air leaks or poor airflow in your home. Proper air duct sealing helps improve your HVAC system's efficiency, reduce energy costs, and maintain good indoor air quality.
During the inspection, an HVAC technician will use specialized equipment to check for any cracks, gaps, or disconnections in the ductwork. They will then seal any problem areas with mastic sealant or metal tape to ensure a tight, airtight seal. This process can extend the life of your ductwork and HVAC system, and help your home stay comfortable year-round.