Running new ductwork in a home typically costs $800-$6,000 depending on scope; many common jobs fall in the $1,800-$3,500 range. This article on cost to run ductwork summarizes typical totals, per-linear-foot and per-register pricing, and the main drivers contractors use to produce a quote.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| New trunk and branch system (single-story 1,200 sq ft) | $800 | $2,500 | $5,500 | Includes basic sheet metal, 6-8 registers, moderate access |
| Adding ducts to existing HVAC | $300 | $1,200 | $3,000 | Per run and tie-in labor; attic work varies |
| Per linear foot (installed) | $4 per ft | $8 per ft | $15 per ft | Depends on material and access |
| Per register/register boot | $50 | $120 | $300 | Includes collar, boot, grille, and balancing |
Typical Total Price To Run New Ductwork For A Small House
Expect $800-$5,500 for a small single-story house (about 1,000–1,500 sq ft) depending on duct material and attic/crawlspace access.
Low-end $800 assumes flexible ducts, minimal trunking, contractor uses existing HVAC unit and easy attic access. Average $1,800-$3,500 assumes sheet-metal trunks, 6–10 runs, standard registers, and typical Midwest labor. High-end $4,500-$5,500 assumes premium insulated sheet metal, long runs, difficult attic access, and additional balancing.
Assumptions: Midwest labor rates, basic 1-story home, standard energy-code registers.
Breaking Down The Quote: Materials, Labor, Equipment, Permits, Disposal
Most ductwork estimates split roughly 40% materials, 40% labor, and 20% equipment/permits/disposal on average jobs.
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $200-$2,000 (sheet metal, flex, tape, mastic) | $400-$2,000 () | $50-$600 (lifts, scaffolding) | $0-$300 (local HVAC permit) | $0-$200 (debris, old duct removal) |
How Per-Foot, Per-Register, And Per-Unit Prices Add Up
Use per-linear-foot plus per-register pricing to estimate: typical installed rates are $4-$15 per linear foot and $50-$300 per register.
Example math: 100 linear ft × $8/ft = $800 plus 8 registers × $120 = $960; rough installed total ≈ $1,760 before permits and balancing. Long flexible runs or complex fittings raise the per-foot rate toward $10-$15.
Site Conditions That Most Change The Final Quote
Access, story count, and insulation requirements are primary variables that can double or halve quotes.
Examples of thresholds: attic access vs. living-space chase—if attic access requires floor cutting expect +$400-$1,200. Multi-story runs that require wall chases or soffits typically add $800-$2,000. Insulated or Class A flex vs. galvanized sheet metal can swing material cost by $2-$6 per linear foot.
Ways Homeowners Control The Price To Run Ductwork
Avoid price increases by keeping scope tight: reuse existing trunks where possible, choose standard register locations, and schedule work in shoulder seasons.
Other levers: provide clear attic access to eliminate scaffolding charges, allow a contractor to use existing openings to avoid cutting drywall, and accept standard galvanized sheet metal rather than premium-lined ducts. Collect 3 written quotes and compare line-item pricing for runs, fittings, and testing.
How Labor Time, Crew Size, And Job Duration Affect Quotes
Typical install time for a 1,200–1,500 sq ft single-story home is 10–20 labor hours with a 2–3 person crew.
Smaller add-on runs can be 2–6 hours. Expect contractor hourly rates of $75-$125 per hour per technician; total labor often quoted as a flat price reflecting estimated crew hours. Weekend or emergency jobs can carry 10%–30% rush premiums.
Regional Price Differences And Seasonal Variations
Prices in coastal urban markets typically run 10%–35% higher than Midwestern averages; rural areas can be 5%–15% lower.
Examples: Northeast/California averages +20%–35% due to labor and permit costs. Southern and Mountain regions often sit near or slightly below national averages. Peak HVAC seasons (spring/fall) can raise labor portions by 10%–25% because of contractor demand.
Common Add-Ons, Repairs, And Quote Examples To Expect
Expect charges for balancing, insulation, vapour barrier, and old-duct removal as common add-ons that increase final price by $150-$1,200.
| Example Job | Specs | Labor Hours | Per-Unit Rates | Total |
|---|---|---|---|---|
| New trunk & 6 runs | 1,200 sq ft, sheet metal | 16 | $8/ft, $120/register | $2,700 |
| Add 2 runs | attic tie-in | 4 | $10/ft, $100/register | $950 |
| Replace old flex | 3 rooms, crawlspace | 10 | $7/ft, $75/register | $1,450 |
Ask quotes to include balancing and static-pressure testing; those can add $75-$300 but materially affect system performance and long-term costs.