The answer to 'how much to fix air duct sealing local' is that the cost can vary significantly depending on several factors. In general, air duct sealing repairs typically range from a few hundred to a few thousand dollars, depending on the size of your home, the extent of the air leaks, and the complexity of the job.
The main factors that influence the cost of air duct sealing include the accessibility of the ducts, the materials needed, the amount of labor required, and whether any ductwork needs to be replaced. Homes with hard-to-reach ducts or extensive damage may cost more to repair. It's best to get quotes from local HVAC contractors to get an accurate estimate for your specific situation.