Most homeowners pay between $250 and $1,200 to clean HVAC ducts; the exact cost depends on home size, number of supply vents, contamination level, and equipment used. This article lists typical HVAC duct cleaning cost ranges, per-vent and per-sq-ft figures, and the main drivers that change a quote.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Whole-house duct cleaning | $250 | $550 | $1,200 | Assumptions: 1,200–2,500 sq ft, 10–20 vents, standard access. |
| Per-register / vent | $20 | $40 | $75 | Per vent, small rooms or partial cleaning. |
| Per linear foot (main trunk) | $1.50 | $3.50 | $6.00 | Long trunks or commercial runs increase cost. |
| Mold remediation (in ducts) | $300 | $800 | $3,000 | Depends on containment and HVAC disassembly. |
Typical Total Price For Whole-House HVAC Duct Cleaning
Most quotes for a typical U.S. single-family home run $250-$1,200, with an average near $550; larger homes or severe contamination push toward the high end. Average assumptions: 1,500–2,000 sq ft, 12–18 registers, accessible plenums, no major repairs needed.
Assumptions: Midwest labor rates, standard steel/plastic ducts, mainline access, one HVAC system.
How Quotes Break Down By Materials, Labor, Equipment, Disposal, and Overhead
This table shows common line items contractors include and realistic cost shares for a standard job. Labor and equipment usually make up the largest share of the invoice.
| Cost Component | Low | Average | High |
|---|---|---|---|
| Materials (cleaning agents, minor parts) | $20 | $40 | $200 |
| Labor (crew hours × hourly rate) | $150 | $350 | $900 |
| Equipment (vacuum, brushes, HEPA filters) | $50 | $125 | $400 |
| Disposal / containment | $0 | $25 | $200 |
| Overhead / travel / admin | $30 | $60 | $200 |
How Square Footage, Number of Vents, and Run Length Change the Final Quote
Price rises with scope: under 1,200 sq ft often costs $250-$450; 1,200–2,500 sq ft typically $450-$800; over 3,000 sq ft often $800-$1,200+. Common per-unit thresholds: fewer than 10 vents (lower range), 10–20 vents (average), 20+ vents or long trunk runs (higher range).
Run length matters: trunk runs over 50 linear feet add $1.50-$6.00 per linear foot due to extra labor and equipment time.
When Mold, Rodents, Or HVAC Repairs Drive Up Price
Mold clean-up or rodent contamination requires containment, antifungal treatments, and sometimes duct replacement; expect $300-$3,000 extra depending on severity. Numeric triggers: visible mold in plenums or insulation, positive lab test, or >10% of registers contaminated often push to remediation pricing.
Minor repairs (taping joints, replacing a register) add $75-$300; major duct replacement is a separate project costing $2,000-$6,000.
Regional Price Differences and Typical Urban/Suburban/Rural Variations
Prices vary by market: coastal metro areas typically run 10%-30% higher than national averages; rural markets can be 10%-25% lower. Expect a 15%-25% premium in high-cost metro regions and a 10%-20% discount in low-cost rural areas.
| Region Type | Typical Delta vs National | Example Average |
|---|---|---|
| High-cost metro | +15% to +30% | $600-$900 |
| Suburban mid-cost | ±0% to +10% | $500-$650 |
| Rural / low-cost | -10% to -25% | $350-$500 |
How Long The Job Takes, Crew Size, And Hourly Rates
Typical residential jobs take 2–6 hours with a 1–3 person crew; hourly rates range $75-$125 per hour per tech. Small houses: 2 techs × 2–3 hours; large or complex: 2–3 techs × 4–8 hours.
Minimum service fees are common: expect a $150-$250 trip charge on smaller jobs or when travel is significant.
Practical Ways To Lower The Price On HVAC Duct Cleaning
Control scope: clean key areas (supply and return trunks, visible contamination) instead of full rebuilds, schedule off-season for lower demand, and provide clear access to reduce labor time. Simple prep (clearing furniture, unblocking attic access) can cut 20%-40% of labor time on-site.
Get 2–3 written quotes, ask contractors to itemize labor hours and per-vent charges, and avoid bundled unnecessary “whole-home” add-ons unless contamination requires them.
Three Real-World Quote Examples With Specs And Pricing
| Example | Specs | Labor/Hours | Total |
|---|---|---|---|
| Basic townhouse | 1,100 sq ft, 8 vents, one system | 2 techs × 2 hours | $300-$420 |
| Standard single-family | 1,800 sq ft, 14 vents, attic access | 2 techs × 4 hours | $550-$750 |
| Large home with mold | 3,200 sq ft, 24 vents, visible mold | 3 techs × 8 hours + remediation | $1,500-$3,500 |
Assumptions: normal access, no major duct reconstruction, standard HEPA vacuum equipment.