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

Air duct replacement cost for a typical home is confirmed after an on-site inspection because every house differs in design, condition, and accessibility. The biggest swings usually come from tight attics or crawlspaces and from redesigning problem duct runs to restore even airflow and comfort. If only a few sections are compromised, repair or partial replacement can be the practical choice; full replacement is better when ducts are aged, contaminated, or too leaky to seal well. We regularly complete these projects across the Columbia area. Free estimates and financing options are available.

What drives your price:

• Total duct length and number of runs
• Material choice (flex, sheet metal, ductboard)
• Access difficulty in attic or crawlspace
• Added work: sealing, insulation, IAQ upgrades
• Code fixes or mold remediation needs

Ask for a load calculation and duct sizing before approving any replacement. <br/> Updated: 2026-03-30 <br/> Need help in West Columbia, SC? Call (803) 888-4115 or book online. "Nick did a great job with routine replacing some ductwork of my HVAC unit." — Stacy F.