The answer to 'cost of air duct sealing' is that the cost can vary significantly depending on several factors. In general, air duct sealing is a cost-effective way to improve the efficiency of your HVAC system and reduce energy bills, but the exact price will depend on the size of your home, the extent of the ductwork, and the complexity of the job.
Some of the key factors that influence the cost of air duct sealing include the materials used (such as mastic or tape), the accessibility of the ductwork, the number of leaks that need to be sealed, and the labor required. Additionally, the location of your home and the going rates for HVAC services in your area can also affect the overall cost.