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

Air duct replacement cost for a typical home varies widely and is only confirmed after an on-site inspection and written scope. The biggest cost swing comes from total duct length and how easy or hard it is to access attics, crawlspaces, and chases.

In our experience serving the La Jolla area, full replacements are often paired with layout corrections to improve airflow, which can influence labor and material choices. Financing is available if you prefer monthly payments.

Common factors that affect price:

• Home size and number of supply/return runs
• Duct material (flex vs. metal) and required insulation level
• Accessibility of attics/crawlspaces and any needed repairs to boots or plenums
• Add-ons like duct cleaning during replacement or IAQ upgrades (UV-C or plasma purifiers)

Schedule an in-home evaluation to receive a written scope and firm price. <br/> Updated: 2026-03-09 <br/> Need help in La Jolla, CA? Call (619) 317-1809 or book online. "The installation of our heating, AC, and ductwork replacement was completed by Gabriel and Jesus, who were very professional and courteous." — David J.