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

Air duct replacement cost for a typical home is set after an in-home inspection because price depends on duct size, materials, access, and any needed design fixes. The biggest driver is how much duct must be replaced; ease of access and material choice follow. Partial replacement is often sensible for isolated damage, while full replacement is considered for widespread rust, crushed lines, or mold. We serve homes across the Bloomington–Normal area near Stanford with practical, code-conscious duct solutions.

If you’re comparing estimates, look for specifics on:

• Total linear feet and count of supply/return runs
• Material type (flex vs sheet metal) and insulation R-value
• Attic or crawlspace access and any demo/patching
• Design or code updates like added returns, trunk resizing, or air balancing

Schedule an evaluation so a technician can map your system and provide a firm, upfront price before work starts. <br/> Updated: 2026-03-12 <br/> Need help in Stanford, IL? Call (309) 317-4215 or book online.