The answer to 'air duct sealing repair cost' is that the cost can vary widely depending on several factors. In general, air duct sealing repairs can range from a few hundred dollars for a small job up to several thousand dollars for a larger, more complex project.
The main factors that influence the cost include the size and accessibility of the ductwork, the extent of the damage or leaks, the materials needed, and the labor required. Homes with hard-to-reach ductwork or extensive duct systems will typically cost more to seal. The cost can also vary based on your location and the going rates for HVAC services in your area.