How much does air duct replacement cost for a typical home?

Air duct replacement cost for a typical home is project-specific and is confirmed only after an on-site inspection. The largest price drivers are the total length of ductwork and how accessible the attic, basement, or crawlspace is for crews and equipment. Our website lists ductwork repair at $100–$400, but full replacement is a custom scope that requires evaluation before pricing. In the field, we often see that replacing ducts without addressing leaks at the plenum leaves comfort and efficiency problems unsolved. Our team regularly handles these projects for homeowners in the Danville area.

Your quote will reflect:

• Home size and the total linear feet of supply and return runs
• Duct type and specification (flex vs. sheet metal) and insulation R-value
• Access complexity and any needed demolition or rebuild
• Add-ons such as professional sealing and airflow balancing for even room temperatures

Ask for a written scope that lists materials, R-values, sealing method, and balancing so you can compare bids accurately.

Updated: 2026-03-09

Need help in Danville, IL? Call 217-559-9454 or book online.