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

Air duct replacement cost for a typical home is confirmed after an in‑home inspection because total price depends on the home’s layout, duct design, and access. Most cost variation comes from the length of duct runs and how accessible the attic, crawlspace, or basement is. A full replacement is usually considered when ducts are deteriorated, contaminated beyond cleaning, undersized, or poorly routed; otherwise, targeted repairs or rework may solve comfort and efficiency issues. Our team regularly handles full replacements and reworks in North Metro homes with a focus on balancing airflow room‑to‑room.

What drives the final quote:

• Total linear feet of duct and number of supply/return runs
• Material choice (flex, metal, or hybrid) and required insulation level
• Access constraints and safety prep in attics, crawlspaces, or basements
• Code updates, hangers, sealing method, and mastic/tape standards
• Needed plenum/transitions, register boxes, and grille changes
• Airflow testing and balancing after install

Schedule an on‑site evaluation to receive a firm, line‑item quote and clear repair‑versus‑replace options. <br/> Updated: 2026-03-11 <br/> Need help in North Metro, GA? Call 770-341-2178 or book online. “Christi and her team were efficient, courteous and did a great job cleaning our air vents and ducts.” — Rob S.