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

Air duct replacement cost for a typical home is confirmed only after an on-site inspection because price depends on duct layout, material, and access conditions. The biggest driver is total run length and complexity, since more branches and fittings add labor and sealing steps. Many homes save by replacing only failed sections or redesigning a few problem runs; on many calls, the spendiest part is correcting a bad layout so rooms finally balance. Our team serves the Denver–Boulder area, so Superior homeowners get the same process-focused approach. Honest, Flat-Rate Pricing - no hidden fees or surprises.

When a tech builds your estimate, they’ll factor in:

• Home size and total duct length, including number of supply/return runs.
• Material and insulation needs (sheet metal, flex, or duct board) and required R-value.
• Access conditions and any demo/patch work in attics, crawlspaces, or finished ceilings.
• Redesign items such as new trunks, zoning, sealing, and post-job testing.

Ask a licensed HVAC pro to measure airflow room by room and provide load-based sizing before you approve any bid.

Updated: 2026-03-14

Need help in Superior, CO? Call (720) 577-4266 or book online. "They hauled out the old timer and gave my duct work a nice glow up." — Francis D.