The answer to 'how much to replace air duct sealing local' is that the cost can vary widely depending on several factors. In general, the cost to replace air duct sealing for a typical home can range from a few hundred dollars to over a thousand dollars, depending on the size of the home, the accessibility of the ductwork, and the extent of the repairs needed.
The main factors that influence the cost of air duct sealing include the size of your home, the number of ducts that need sealing, the materials used, and the labor required. Homes with larger ductwork or more complex layouts will generally cost more to seal. Additionally, if the ductwork is difficult to access, such as in a crawl space or attic, the labor costs may be higher. The type of sealant used, such as mastic or foil tape, can also affect the overall cost.