New duct work cost for a typical single-family home usually falls in wide ranges depending on size, material, and labor. Buyers commonly pay $1,200-$12,000 total, with main drivers being square footage, duct type (flex vs. sheet metal), and number of supply/return registers.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Small Repair/Partial Run | $300 | $750 | $1,500 | 5-20 linear ft, flexible duct |
| Full New Duct System (1,200–2,000 sq ft) | $2,500 | $6,000 | $10,000 | Metal or insulated flex, 8–12 vents |
| Large Home System (2,500+ sq ft) | $6,000 | $9,500 | $15,000 | Multiple trunk lines, custom sheet metal |
| Trunk Replacement / Sheet Metal Upgrade | $1,000 | $3,500 | $8,000 | Per major trunk run |
Typical New Ductwork Price For a 1,200–2,500 sq ft Home
Most homeowners installing a complete new duct system for a 1,200–2,500 sq ft house see totals of $2,500-$10,000. Expect $4,500-$7,500 as a common mid-range price for standard materials and normal attic or basement access.
Assumptions: Midwest labor rates, 8–12 supply registers, standard R‑6 insulated flexible ducts, normal attic access.
How Materials, Labor, and Equipment Add Up on a Quote
A realistic contractor quote splits into obvious line items; understanding each helps compare bids. Materials and labor usually make up 70%-85% of the total installed cost.
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $300-$4,000 (flex, sheet metal, insulation) | $600-$6,000 (crew hours) | $100-$700 (lift, crimpers, shears) | $0-$400 | $50-$600 |
Assumptions: labor rates $75-$125 per hour, 1–3 crew members, 4–40 labor hours depending on scope.
How Home Size, Duct Type, and Run Length Change the Quote
Key numeric drivers directly shift prices: square footage, linear feet of trunk and branch runs, and number of registers. Expect about $4-$9 per sq ft for new ductwork in typical retrofit jobs; custom sheet metal can be $8-$18 per sq ft equivalent.
Examples of thresholds: adding more than 100 linear feet of duct raises labor and material tiers; switching from flexible to 26‑ga sheet metal often adds $1,000-$3,500; increasing registers from 8 to 14 typically adds $300-$900.
Cost-Saving Choices When Installing New Ductwork
Buyers can control scope to reduce price through material choice, timing, and limited access work. Choosing insulated flexible duct for accessible attics or basements saves $500-$3,000 versus full sheet metal in many jobs.
- Schedule work in shoulder seasons to avoid peak HVAC demand.
- Bundle ductwork with HVAC replacement to reduce mobilization fees.
- Perform homeowner prep (clear attic, provide workspace) to cut labor hours.
- Replace only major trunks or problematic runs instead of full replacement when pressure testing allows.
Regional Price Differences and What To Budget Locally
Prices vary by region: coastal and high-cost metros run 10%-40% above national averages, while rural areas can be 10%-25% lower. Budget $5,000-$7,500 in most Sun Belt and West Coast cities and $3,500-$6,000 in Midwest suburban markets for a 1,500–2,000 sq ft home.
Example deltas: Northeast +15%-30%, Mountain West +5%-20%, Rural Midwest -10%-20%.
Typical Job Time, Crew Size, and Labor Rates
Labor duration and crew size change costs directly; expect 6–36 hours for full installs. Common crews are 1–3 technicians at $75-$125 per hour; larger commercial crews charge more.
- Small repairs/branch runs: 1 tech, 2–6 hours.
- Full-system replace in 1–2,000 sq ft: 2 techs, 16–28 hours.
- Large or complex homes: 3 techs, 24–40 hours.
Real Quote Examples With Specs and Pricing
| Scenario | Specs | Labor Hours | Per-Unit Rates | Total |
|---|---|---|---|---|
| Partial Run Replacement | 20 lf insulated flex, 2 vents | 3–5 | $4 per lf | $300-$750 |
| Complete System, 1,600 sq ft | 10 vents, insulated flex, new trunk | 18–24 | $4-$6 per sq ft | $3,500-$6,500 |
| Custom Sheet Metal, 3,000 sq ft | Multiple trunks, custom boots | 30–45 | $8-$15 per sq ft | $9,000-$18,000 |
Assumptions: normal access, no major framing, standard register grills included.
Add-Ons, Testing, and Permit Fees That Increase Price
Common extras that raise the final invoice include duct sealing, balancing, insulation upgrades, and pressure testing. Expect duct sealing and testing to add $200-$900 and insulation upgrades $300-$1,200.
- Pressure/duct leakage testing: $150-$400.
- Insulation to R‑8 or higher: $300-$1,200 depending on area.
- High-end registers/grilles: $20-$150 per fixture.
- Permit and inspection fees: $0-$400 depending on local code.