Typical buyers pay $3-$15 per linear ft for new HVAC ductwork depending on type, size, and installation complexity. This duct cost per foot summary shows low, average, and high ranges and the main drivers: material, labor, run length, and access.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Sheet Metal Round/Rectangular | $3 per ft | $7 per ft | $12 per ft | Assumptions: single-story home, 8″–16″ ducts, standard insulation. |
| Flexible Duct | $2 per ft | $5 per ft | $9 per ft | Assumptions: short runs, insulated flex, easy access. |
| Installing Trunk + Branch (total job) | $600 | $2,200 | $6,000 | Assumptions: 1,000–2,000 sq ft home, includes registers. |
What Ductwork Costs For A Typical Single-Family Home
Expect total duct system installs to range from $600 to $6,000 for most U.S. homes; average jobs are $1,500–$3,000.
Typical total price depends on house size and scope: a 1,200–1,800 sq ft house with moderate runs commonly pays $1,200-$3,000 for supply and return ducts and registers. Per-foot averages are $3-$7 for installed metal ducts and $2-$5 for installed insulated flex. Assumptions: Midwest labor, normal attic access, standard 8–10 registers.
Material, Labor, Equipment, And Disposal In A Duct Quote
Material and labor usually make up 80%–90% of the final quote; equipment and disposal are smaller line items.
| Materials | Labor | Equipment | Delivery/Disposal | Contingency |
|---|---|---|---|---|
| $1-$8 per ft (sheet metal or flex) | $75-$125 per hour; $1-$6 per ft installed | $50-$300 (lift rental or specialty tools) | $50-$400 (old duct removal) | 5%-15% of subtotal |
Material ranges cover galvanized sheet, spiral round, and insulated flex; labor reflects 1–3 crew members and 4–16 hours depending on job size.
How Size, Gauge, And Run Length Change The Final Duct Price
Longer runs and larger trunk diameters increase price nonlinearly: ducts over 50 linear ft per run add $0.50–$2.00 per ft in labor and support costs.
Numeric drivers: using 10″–16″ trunk sizes vs. 6″–8″ increases material cost by about 20%–60%; thicker gauge metal (26 ga vs. 24 ga) adds roughly $0.50–$1.50 per ft. Multiple bends (more than 3 per run) typically add $25–$75 per bend in labor and fittings.
How To Lower Duct Cost Per Foot During A Remodel
Control scope and choose simpler materials: use insulated flex for short, accessible runs and minimize new trunk length to save the most.
Practical steps: consolidate runs (reduce total linear ft), pre-fit connections before crew arrival, keep attic/ crawlspace clear for faster access, and avoid custom sheet metal shapes. Bundling ductwork with HVAC replacement often reduces per-foot labor by 10%–25% versus standalone duct jobs.
Regional Price Differences And What To Budget In Your Area
Expect 10%–30% higher labor-driven pricing in West Coast and Northeast metro areas versus Midwest and parts of the South.
Example deltas: if average installed duct is $6 per ft nationally, budget $5-$6.50 per ft in low-cost areas, $6-$7.50 per ft in mid-cost areas, and $7.50-$9 per ft in high-cost metro regions. Assumptions: local prevailing wage, union influence, and permit needs.
Real-World Quote Examples With Specs And Pricing
| Scenario | Specs | Labor Hours | Per-Ft Rate | Total |
|---|---|---|---|---|
| Small Repair | 20 ft flex replacement, 1 register | 1.5 hours | $4 per ft | $110-$180 |
| Full Trunk & Branch | 300 ft mixed metal+flex, 10 registers | 16 hours, 2 techs | $5.50 per ft | $1,650-$2,400 |
| New Installation, High-End | 400 ft spiral metal, custom boots | 24 hours, 3 techs | $9 per ft | $3,600-$5,000 |
Each example includes modest local disposal and minor fittings; overhead, permits, and contingencies may add 10%–20% to totals.
Common Add-Ons, Permit Fees, And When Costs Spike
Permits, fire-stopping, and code upgrades can add $150–$1,200 to a duct job, with attic access issues multiplying labor by 1.5× or more.
Typical add-ons: fire damper installation ($200–$600 each), sound attenuators ($150–$500 each), and register/grille upgrades ($20–$150 each). If access requires cutting ceilings or framing changes, expect an additional $300–$2,000 depending on repair scope.