Most U.S. homeowners pay between $1,200 and $8,500 to install new ductwork; cost depends on system size, material, and access. This article breaks down duct installation cost, per-unit rates, and the biggest variables that change a quote.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Full New Duct System (existing home) | $1,200 | $4,200 | $8,500 | Assumptions: 1,200-2,500 sq ft, basic sheet metal trunks, normal attic crawlspace. |
| Supply & Return Duct Runs (per linear ft) | $4 per lf | $7 per lf | $12 per lf | Includes installation, varies by material and access. |
| Flexible Duct Short Runs (per register) | $75 | $125 | $250 | Includes boot, flex, and hookup. |
| Trunk-and-Branch (per sq ft served) | $0.80 per sq ft | $2.00 per sq ft | $4.00 per sq ft | Depends on layout complexity. |
Average Duct Installation Price For A Typical 2,000 sq ft Home
Full new duct installation for a 2,000 sq ft single-family home typically runs $2,500-$6,500, with an average near $4,200. Expect $1,200-$2,000 for minimal retrofit runs, $4,000-$6,000 for complete trunk-and-branch installs, and $6,500-$8,500 for high-efficiency metal systems with multiple zones.
Assumptions: Midwest labor rates, 8-12 supply/return registers, attic or crawlspace access, standard plenums.
Breakdown Of Materials, Labor, Equipment, And Disposal
| Cost Component | Low | Average | High | Typical Note |
|---|---|---|---|---|
| Materials | $300 | $1,200 | $3,000 | Sheet metal, flex, boots, tape, insulation |
| Labor | $600 | $2,200 | $5,000 | (see labor section) |
| Equipment | $0 | $150 | $600 | Scaffolding, lifts, specialty tools |
| Delivery/Disposal | $50 | $200 | $800 | Old duct removal, dumpster, haul-off |
| Permits | $0 | $80 | $400 | Local code/inspection fees where required |
Materials and labor together usually account for 80%-90% of the total quote.
Duct Size, Run Length, And Ceiling Height That Affect Price
Longer runs and larger trunk diameters raise material and labor costs: adding 50-100 linear feet increases total price by about $200-$900 depending on material. Jobs with run lengths over 150 lf or trunks above 14-inch equivalent diameter often move a quote from average to high range.
Numeric triggers: runs >150 lf, ceiling heights >10 ft (adds 10%-25%), more than 12 register drops (adds $75-$150 per extra register).
How To Lower Duct Installation Price With Scope And Material Choices
Scope control is the most reliable saving method: prioritize sealing and repairing existing ducts instead of full replacement, reduce register count, or use semi-rigid/flex where acceptable. Choosing insulated flex ducts over custom sheet metal can cut material-plus-labor by 20%-45% on many retrofits.
Other tactics: schedule in shoulder seasons, get multiple quotes, and do basic prep (clear attic access) to avoid hourly access surcharges.
How Prices Vary Between Urban, Suburban, And Rural Markets
Regional labor and travel affect final quotes: urban areas typically cost 5%-25% more than suburban, while remote rural jobs may add 10%-30% in travel and minimum charges. Expect city premiums of $300-$1,200 on a full install compared with midwest suburban averages.
Example deltas: West Coast +10%-25%, Northeast +8%-20%, Rural +10%-30% for travel/minimums.
Typical Crew Size, Labor Hours, And Installation Time
Small retrofit runs: 1-2 technicians, 3-8 hours. Full system install: 2-4 technicians, 16-48 hours. Typical labor rates run $75-$125 per hour per technician; plan for 16-32 total crew hours on a single-family full replacement.
Assumptions: standard attic access, no major sheet-metal trunk fabrication on site.
Extra Charges: Insulation, Zoning, Balancing, And Register Costs
Common add-ons change totals: insulation adds $4-$9 per sq ft of duct surface or $0.30-$0.80 per lf; zoning dampers $200-$500 per zone; airflow balancing $150-$450; premium registers $20-$120 each. Add-ons can increase a base quote 8%-30% depending on number of zones and insulation level.
Typical example: 3-zone upgrade adds $600-$1,400; full duct insulation for attic system adds $400-$1,800.
Three Real-World Quote Examples To Expect
| Scenario | Specs | Labor Hours | Total |
|---|---|---|---|
| Minimal Retrofit | 4 registers, 40 lf flex, seal existing | 6 | $750-$1,400 |
| Complete Trunk-and-Branch | 10 registers, 2000 sq ft home, new sheet metal trunks | 24 | $3,800-$6,200 |
| High-End Replacement | 12 registers, custom metal, 3 zones, insulation | 40 | $6,500-$9,800 |
Request itemized bids showing materials, labor hours, and add-on fees to compare accurately.