Air duct cleaning is sold in a hurry: a flyer arrives offering a whole-house cleaning for a very low price, then the technician finds problems that need an expensive add-on. Knowing the going rates, and when the job is actually worth doing, protects you from both overpaying and buying something you do not need.
Updated November 2026
Duct cleaning cost: what the sources report
All figures are typical ranges reported by the named sources on the dates shown, in US dollars. They are not quotes. Get at least three written estimates for your own project.
| Measure | Typical range | Source and date |
|---|---|---|
| National average, 2,000 sq ft home | $500 (most homeowners $300 to $700) | Fixr, updated January 2026 |
| Per square foot | $0.15 to $0.35 | Fixr, January 2026; Housecall Pro, October 2026 |
| Per square foot | $0.15 to $0.40 | This Old House, page dated April 2026 |
| Whole house, overall | $450 to $1,000 | This Old House (citing NADCA), April 2026; Inch Calculator, page updated August 2023 |
| Whole house, most homes | $270 to $1,000, average about $389 | Housecall Pro, updated October 2026 |
| Flat-rate offer | About $500 for a legitimate full job | Housecall Pro, October 2026 |
| Per supply vent | $25 to $50 (about $35 average) | Fixr; Housecall Pro; This Old House |
| Per return vent | $40 to $75 | This Old House, April 2026 |
The spread is real. Fixr puts a 2,000 square foot home at $300 to $700, while This Old House lists $300 to $800 for the same size and $450 to $1,000 as an overall range, and Housecall Pro cites an average near $389. Differences come from how many vents and returns a system has, whether the duct work is long or hard to reach, and local labor rates.
Cost by home size
| Home size | Fixr (Jan 2026) | This Old House (Apr 2026) |
|---|---|---|
| 1,200 sq ft | $180 to $420 | $180 to $480 |
| 1,500 sq ft | $225 to $525 | $225 to $600 |
| 2,000 sq ft | $300 to $700 | $300 to $800 |
| 2,500 sq ft | $375 to $875 | $375 to $1,000 |
| 3,000 sq ft | $450 to $1,050 | $450 to $1,200 |
Both tables work out to the same low end per square foot ($0.15); they differ on the top end ($0.35 versus $0.40). Fixr also lists by vent count: 8 vents $200 to $400, 12 vents $300 to $600, 16 vents $400 to $800 and 20 vents $500 to $1,000.
Add-ons and related costs
| Item | Typical range | Source and date |
|---|---|---|
| Dryer vent cleaning | About $140 extra (Fixr); about $150 (Inch Calculator) | Fixr, January 2026; Inch Calculator, August 2023 |
| Mold remediation | $1,000 to $5,000, depending on severity | Fixr, January 2026 |
| Pest removal | $200 to $1,200 | Fixr, January 2026 |
| Coil or evaporator cleaning | $150 to $500 | Inch Calculator, August 2023 |
| Labor | $90 to $130 per hour, most jobs 3 to 6 hours | Fixr, January 2026 |
Is duct cleaning worth it?
Not automatically. The U.S. Environmental Protection Agency says duct cleaning has never been shown to actually prevent health problems and that little evidence exists that cleaning only the ducts improves system efficiency. It does not recommend routine cleaning. It does suggest considering it when there is substantial visible mold growth inside the ducts, when ducts are infested with rodents or insects, or when they are clogged with so much dust and debris that particles are visibly released from supply registers. It also notes that wet or moldy insulation inside ducts cannot be effectively cleaned and should be replaced, and that the moisture source has to be fixed or mold will return.
In other words, a light film of dust is normal. Pay for the service when you can point to one of those three conditions, after a renovation that filled the system with drywall dust, or when you move into a home with obvious contamination.
What affects the price
- Number of vents and returns, and the length of the trunk lines.
- Access: attic or crawlspace runs take longer.
- Contamination: heavy debris, pests or mold change the job from cleaning to remediation.
- Extras: sanitizer or deodorizer, dryer vent, coils, blower and registers.
- Local rates.
How to avoid overpaying
- Be wary of very low whole-house specials. Housecall Pro warns that they often cover only part of the system.
- Ask for a written quote that lists the number of vents and returns, whether the main trunk lines are included, and what equipment is used.
- Ask the technician to show you the problem with a camera or photo before agreeing to add-ons.
- Look for contractors who follow NADCA standards and carry insurance.
- Change filters on schedule; it reduces dust reaching the ducts in the first place.
- If your real issue is comfort, check duct leaks and system sizing first with our HVAC sizing calculator, and see HVAC installation cost if a replacement is on the table.
If you run a cleaning business and want to price these jobs, our cleaning estimate calculator can help.
Frequently asked questions
How much does air duct cleaning cost for an average house?
Fixr (January 2026) puts a 2,000 square foot home at about $500, with most homeowners paying $300 to $700. This Old House (April 2026) lists $450 to $1,000 overall, so expect a spread.
How often should ducts be cleaned?
The EPA does not recommend routine cleaning. It suggests it when there is visible mold, vermin, or excessive dust and debris coming from the system.
Does duct cleaning improve air quality?
The EPA says duct cleaning has never been shown to actually prevent health problems, and the benefits for particle levels in the home are not conclusively proven.
Is dryer vent cleaning included?
Usually it is an add-on. Fixr lists about $140 and Inch Calculator about $150, but confirm when you book.