Buyers typically pay between $1,200 and $8,000 for HVAC duct work depending on home size, material, and access. This article lists typical HVAC duct work cost ranges, per-unit rates, and the factors that cause wide variation.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Partial duct repair (couple runs) | $200 | $600 | $1,200 | Minor leaks, 1–3 flexible runs |
| Full duct replacement (1,500–2,500 sq ft) | $3,000 | $5,500 | $10,000 | Sheet metal, standard layout |
| New duct installation (new build) | $1,500 | $4,000 | $9,000 | Depends on zones and material |
| Sealing and insulation | $400 | $1,200 | $3,500 | $4-$9 per sq ft sealed/insulated |
Typical HVAC Duct Work Price for a 1,800–2,200 sq ft House
Most full replacements for a typical 1,800–2,200 sq ft single-family house cost $3,000-$7,500. This assumes 8–12 supply/return registers, standard 12–18 linear ft trunks, sheet metal main trunks, and flex runs to rooms. Assumptions: suburban U.S., accessible attic, mid-grade materials.
How Job Quotes Break Down: Materials, Labor, Equipment, Permits, Disposal
A full written quote usually shows separate line items for materials, labor, equipment rental, permits, and disposal.
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $400-$3,500 (flex, sheet metal, insulation) | $600-$4,000 () | $50-$400 (lift rental, scaffolding) | $0-$500 (local) | $50-$800 (haul and landfill) |
How Material Choice Affects Price: Flex vs Sheet Metal vs Ductboard
Flexible duct is cheapest at $4-$9 per linear ft installed; sheet metal runs $10-$25 per linear ft; ductboard panels cost $8-$18 per linear ft. Flex is faster but less durable; sheet metal costs more labor and flashing. Assumptions: typical 6–12 inch diameter runs, residential grade.
Site Conditions That Drive Price Higher or Lower
Access and location change costs dramatically: attic access is usually 10–30% less than full ceiling removal in finished interiors. Numeric thresholds: more than 200 linear ft of runs often shifts contractor pricing into the higher labor bracket; vertical drops over two floors requiring chase work can add $800-$2,500.
Concrete Variables That Change the Final Quote
The largest cost drivers are total linear footage, number of zones/registers, insulation R-value, and crawlspace vs attic access. Example thresholds: under 100 linear ft: expect lower labor rate band; 100–300 linear ft: average; over 300 linear ft: high-end quotes. Adding R8+ insulation can add $1-$3 per linear ft.
Practical Ways To Lower HVAC Duct Work Price
Choose flex for non-visible runs, avoid relocating registers, and prepare access to reduce labor time. Additional tactics: get three itemized quotes, schedule work in shoulder seasons for lower labor rates, and salvage usable duct segments rather than full replacement.
Typical Labor Time, Crew Size, and Hourly Rates
A typical replacement for a 2,000 sq ft home requires 10–24 hours with a 2–3 person crew. Labor rates: $75-$125 per hour per technician in many U.S. markets. Example: 18 hours × $90/hr × 2 techs = ~$3,240 labor.
Real-World Quote Examples With Specs and Totals
Example quotes show how scope changes totals even with similar square footage.
| Scenario | Specs | Labor Hours | Per-Unit Rates | Total |
|---|---|---|---|---|
| Minor repair | 3 flex runs, sealing | 3–5 hrs | $80/hr, $6/ft | $250-$700 |
| Full replace (mid) | 2,000 sq ft, sheet trunks, 12 registers | 12–20 hrs | $95/hr, $12/ft | $3,800-$6,200 |
| New construction | 2,200 sq ft, ductboard, 2 zones | 16–30 hrs | $85/hr, $9/ft | $2,500-$7,500 |
Regional Price Differences and Seasonal Timing
Expect 10–25% higher labor and total prices in high-cost metro areas versus rural or Midwest markets. Seasonal swings: spring and fall often have lower lead times and slightly lower rates; summer rush can add 5–15% rush premium.
Common Add-Ons, Disposal, And Permit Fees To Include In Budget
Budget separately for register relocation ($75-$300 each), attic insulation tie-in ($300-$1,200), and permit/inspection fees ($0-$500). Diagnostic fees or leakage testing add $100-$400; full duct cleaning or mold remediation adds $300-$1,200 depending on scope.