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

Air duct replacement cost for a typical home is determined after an on-site inspection and airflow testing, because duct scope and sizing drive the price. The biggest cost swings come from whether it’s a targeted repair or a full whole‑house duct modification and how extensive the rework must be. On many jobs, the price inflection point is optimizing return air; a correctly sized return can lower static pressure more than adding another supply. We routinely deliver whole‑house duct modifications across the Valley, and larger projects are scheduled in fall and spring. Maintenance plan members receive a discount on ductwork modifications (10% to 15%, depending on plan). If you have visible mold or collapsed sections, prioritize replacement; otherwise, we can plan upgrades to fit your seasonal window.

Key factors we confirm before giving a firm quote:

• Duct sizing and total run counts after airflow calculations
• Adding returns/filters or enlarging and straightening ducts
• Removal of contaminants, such as mold
• Space for future air quality devices and higher filtration

Schedule an evaluation so we can measure airflow, document the scope, and provide a firm, itemized quote. <br/> Updated: 2026-04-03 <br/> Need help in Paradise Valley, AZ? Call (602) 793-2477 or book online.