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

Air duct replacement for a typical home is quoted only after an in‑home evaluation because cost varies with system design, scope, and access. The largest driver is the total length and number of duct runs, followed by material type and how workable the attic, crawlspace, or basement is. Many homes only need targeted duct repairs, sealing, or cleaning; full replacement makes sense when ducts are undersized, severely damaged, or contaminated. We routinely complete these projects across the Denver metro, including homes near Brighton, with honest, flat-rate pricing. A small technician insight: adding a correctly sized return can boost comfort more than adding another supply.

Your final quote reflects:

• Linear footage and the count of supply and return runs
• Material choice (rigid metal or flex) and any custom fabrication
• Access conditions and required removal or disposal
• Scope items like new plenums, registers, insulation, sealing, and airflow balancing

An in‑home assessment with airflow readings and sizing is the fastest way to get a precise, written price. <br/> Updated: 2026-04-03 <br/> Need help in Brighton, CO? Call (720) 577-4266 or book online. “Christopher and Antonio came out the next day and replaced the furnace, repaired some ducts and explained everything about it and operating it.” — Bob R.