The answer to 'how much does air duct sealing cost local' is that the cost can vary significantly depending on several factors. In general, air duct sealing services typically range from a few hundred dollars to a few thousand dollars for an average-sized home.
The exact cost will depend on the size and complexity of your ductwork, the extent of the sealing needed, the materials used, and the labor costs in your local area. Homes with larger or more extensive ductwork systems will generally cost more to seal. The condition of the existing ductwork and whether any repairs are required can also impact the final price.