Dryer vent cleaning vs air duct cleaning: what is the difference?
Dryer vent cleaning and air duct cleaning are not the same service. A dryer vent carries hot, lint-laden air out of your house. Your air ducts carry cooled or heated air through it. They are separate systems with separate tools, schedules and prices. Most homes need the dryer vent first, and many do not need the ducts at all.
By Steve · Published October 20, 2026
The short answer
- A dryer vent is the exhaust duct from your dryer to the outside. Air ducts are part of your heating and cooling system.
- They use different tools. A dryer vent needs brushes and an airflow reading. Ducts need negative-pressure suction and agitation.
- Lint in a dryer vent is the fire concern the CPSC and USFA warn about. The EPA says duct cleaning should be done as needed, not routinely.
- For most homes, the dryer vent is the one to do first. A standard dryer vent cleaning is $129.
- If you want both, the bundle is $499.
Two different systems
A dryer vent is a single exhaust duct. Warm, damp air leaves the dryer, picks up lint, and travels through the duct to a hood on the wall or a cap on the roof. The Consumer Product Safety Commission says lint can build up in the dryer or the exhaust duct, block airflow, and cause excessive heat build-up.
Air ducts are the branching passages from your furnace or air conditioner to every room. They carry conditioned air, not exhaust. They are part of your heating and cooling system, and they have nothing to do with the dryer.
If a company quotes you “duct cleaning,” ask which one they mean. The answer decides the price, the tools and what you get.
How the work differs
| Dryer vent cleaning | Air duct cleaning | |
|---|---|---|
| What it clears | Lint packed in one exhaust duct | Dust and debris on the walls of supply and return ducts |
| Tools | Rotary brushes, vacuum capture, an airflow meter | Negative-pressure collection unit, air whips or brushes, a camera |
| Typical frequency | Once a year is a sensible default | Only when there is a reason, per the EPA |
| Standard price here | $129, or $179 for a roof or second-floor exit | $449 for one system, up to 12 supply vents |
The dryer vent cleaning page and the air duct cleaning page show what each visit includes. If you are not sure whether your dryer vent is a problem, the signs of a clogged dryer vent guide and the two-minute checklist will tell you.
Which one first
Start with the dryer vent. It costs less, it is tied to fire safety guidance, and most households benefit from it. The CPSC and the USFA both tell you to clean the lint filter every load and to keep the vent and exhaust duct clear.
Air ducts are different. The EPA says it does not recommend cleaning ducts routinely, only as needed. It lists the conditions that justify it: substantial visible mold growth in hard-surface ducts, vermin in the ducts, or ducts clogged with excessive dust and debris, including particles released from the registers. If none of those apply, skip it. Our guide on whether air duct cleaning is worth it goes through them.
When doing both makes sense
Both together make sense in a few cases: you just bought the house and do not know the history, a remodel was done with the system running, or the home sat empty for a long time. For those, see the move-in duct cleaning page. The Duct + dryer vent bundle is $499, which saves $79 against booking them separately.
What to ask any company
- Which system does the quote cover, the dryer vent, the air ducts, or both?
- What is the total price, in writing, before work starts?
- How will I know the job was done? Ask for before-and-after photos or video.
The guide on choosing a duct cleaner turns the EPA’s advice into a checklist. For how we handle each of these, see how a visit works.
The services this guide is about
Common questions
- Is a dryer vent the same as an air duct?
- No. A dryer vent is the exhaust path from your dryer to the outside of the house. Air ducts are the passages that carry air from your heating and cooling system to the rooms. They are separate systems and are cleaned separately.
- Which one do I need first?
- Usually the dryer vent. It is the cheaper job and the one tied to the fire safety guidance from the CPSC and USFA, which tell you to keep the lint screen and exhaust duct clear. The EPA says air ducts should be cleaned as needed, not on a schedule.
- Can the same company clean both?
- Yes, and many do. They use different equipment. We clean both in one visit as a bundle, with a separate airflow reading for the dryer vent and camera footage for each.
- How often should I do each?
- Once a year is a sensible default for a dryer vent in most households, and sooner if you see the signs. For ducts, the EPA says to clean when there is a specific reason, such as visible mold, vermin, or debris coming from the registers.
- Does duct cleaning clean the dryer vent?
- No. Even a thorough duct cleaning does not touch the dryer duct. Ask any company to confirm in writing which one the quote covers.
- What does each cost?
- A standard dryer vent is $129 and a roof or second-floor exit is $179. Air duct cleaning starts at $449 for one system. Together as a bundle they are $499.
Sources
- Overheated Clothes Dryers Can Cause Fires (Publication 5022) — U.S. Consumer Product Safety Commission. Source for lint in the dryer exhaust duct and the guidance to clean the vent and exhaust duct periodically. Accessed October 20, 2026.
- Should You Have the Air Ducts in Your Home Cleaned? — U.S. Environmental Protection Agency. Source for the position that air ducts should be cleaned as needed, not routinely, and for the conditions that justify it. Accessed October 20, 2026.
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