The answer to 'how much to fix air duct sealing' is that the cost can vary significantly depending on several factors. In general, air duct sealing repairs can range from a few hundred dollars for small, localized issues up to several thousand dollars for more extensive work across an entire home's ductwork system.
The main factors that influence the cost of air duct sealing include the size of your home, the accessibility and condition of the ductwork, the materials and sealants needed, and the complexity of the job. Homes with older, harder-to-reach ductwork or extensive damage will typically cost more to repair than newer, more accessible systems. Professional HVAC technicians can assess your specific situation and provide an accurate estimate for the work required.