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

Air duct replacement cost for a typical home is only confirmed after an in‑home inspection because labor, access, and design needs vary widely. Most of the price is driven by how much ductwork must be replaced and how hard it is to reach in attics or crawlspaces. When ducts are simply leaky or slightly damaged, sealing or targeted repairs can be the smarter, lower‑cost fix; full replacement is chosen for widespread damage, severe airflow issues, or badly sized layouts. Our technicians often see that tight truss bays and limited attic walkways increase labor hours more than material choice. We regularly perform these projects in the Grand Prairie area with a focus on restoring comfort and clean airflow.

Your price is mainly driven by:

• Total duct length and number of supply/return runs
• Material choice (flex, metal, or ductboard) and insulation level
• Access conditions in attics/crawlspaces and obstacles
• Layout changes, new plenums/boots, sealing, and airflow balancing

Final pricing is confirmed after an on-site inspection with diagnostics of airflow and leakage. <br/> Updated: 2026-04-02 <br/> Need help in Grand Prairie, TX? Call (214) 717-6708 or book online. “Beket came out and inspected our HVAC system and ductwork. Very professional and forthright, gave us his honest evaluation, and we will definitely go with Milestone for all future HVAC needs!” — Sarah K.