Clean the lint screen before or after every load. Clean lint out of the vent pipe at least once a year. And have the full exhaust path cleaned professionally, because emptying the trap isn't the same job.
That yearly interval is the baseline from the U.S. Consumer Product Safety Commission, the National Fire Protection Association, and NADCA. But it isn't a promise that every house, condo, or apartment can wait twelve months. Long runs, roof exits, daily laundry, and shared building stacks collect lint faster. If drying time is already stretching, the calendar is late.
How often do CPSC, NFPA, and NADCA say to clean a dryer vent?
Short answer: Lint screen every load. Vent pipe at least once a year. Professional cleaning once a year. More often if clothes are taking longer than they used to.
Those are three separate instructions. People collapse them into "we cleaned the screen, so we're fine." They're not the same work.
- CPSC, Release 23-143 (March 2023): don't run the dryer without a lint filter; clean that filter before or after each use; make sure the exhaust pipe is not restricted and the outdoor flap opens; clean lint out of the vent pipe at least once a year.
- CPSC Publication 5022: clean the lint screen before or after each load. If clothes are still damp after a typical cycle, or the cycle now runs longer than normal, the screen or the exhaust duct may be blocked. Clean the dryer vent and exhaust duct periodically, and check the outdoor vent while the dryer is running.
- NFPA clothes-dryer safety tip sheet: clean the lint filter before or after each load. Once a year—or more often if drying is taking longer than normal—clean lint out of the vent pipe, or have a lint-removal service do it.
- NADCA: professionally clean dryer vents once a year. Emptying the lint trap is not enough. With regular use, schedule that professional cleaning at least once a year.
CPSC 5022 says "periodically." The dated number—at least once a year—is in CPSC's 2023 release and in NFPA's tip sheet. NADCA adds the professional part. We use all three: inspect the path, clean what's restricted, and verify air is leaving the house.
Is cleaning the lint screen the same as cleaning the vent?
Short answer: No.
The screen catches a lot of lint. Not all of it. Fiber still travels into the exhaust line and packs at elbows, crushed hose, and the outdoor hood. NADCA is plain about this: cleaning the lint trap isn't enough to keep the vent clear.
That's already on our FAQs page. And vacuuming the short connector behind the dryer isn't a vent cleaning either. The hose is one piece of the path. A complete dryer vent cleaning takes the line to the exterior termination and checks what we can reach at both ends.
CPSC 5022 recommends replacing plastic or foil accordion duct with rigid or corrugated semi-rigid metal, because plastic and foil trap lint and crush or kink. If we find that material, we photograph it and walk you through what cleaning can and can't fix. We don't treat a hose wipe as a completed cleaning.
Who needs a dryer vent cleaned sooner than once a year?
Short answer: Anyone whose clothes already take longer than they used to. After that: long runs, roof exits, heavy laundry, and anything that traps lint.
NFPA doesn't treat twelve months as a lock. Their tip sheet says to clean the vent pipe once a year, or more often if drying is taking longer than normal. That's the first "sooner" rule, and it isn't ours. If a normal load now needs a second cycle, don't wait for the next annual date. The two-cycle problem is covered separately in Why Is My Dryer Taking Two Cycles to Dry?.
The worst part? People wait for the calendar while towels already need two cycles.
In the field, we also see faster buildup when the path itself works against airflow:
| What the system looks like | Starting interval | Why |
|---|---|---|
| Typical home, normal use, short wall termination | At least once a year | CPSC, NFPA, and NADCA baseline |
| Clothes already taking longer than they used to | Now—not next year | NFPA: clean more often when dry time stretches |
| Long run, several elbows, attic or roof exit | Sooner than the 12-month mark | More surface and more turns for lint to collect |
| Dryer runs most days; pets, towels, or rugs in the loads | Sooner than the 12-month mark | More fiber into the line between cleanings |
| Foil, plastic, or crushed connector behind the dryer | Inspect now | CPSC: that material traps lint and kinks |
| Outdoor hood packed, stuck, or buried in debris | Inspect now | CPSC and NFPA: the flap has to open and air has to leave |
| Apartment, condo, or HOA with a shared or roof stack | Annual at minimum; often sooner | More users, longer or shared paths, harder access |
The "sooner" rows aren't a second official number. CPSC, NFPA, and NADCA don't publish a six-month apartment interval. They publish a yearly baseline and, in NFPA's case, a dry-time trigger. The rest is how those systems actually load up.
Brevard exterior hoods sit in weather, insects, and yard debris. But that doesn't change the official interval. It does change how often a termination packs shut between cleanings.
How often should apartment dryer vents be cleaned?
Short answer: At least once a year, same as a house. Many apartment and condo systems need it sooner because the path is longer, shared, or roof-terminated, and the dryer runs more days than a single household.
There's no separate CPSC, NFPA, or NADCA calendar for apartments. The official baseline doesn't split "house" from "unit." The building still does.
A house with a short wall jack is one dryer, one line, one hood. An apartment or condo is often a dryer in an interior closet, a long chase, elbows in a shared stack, and a roof termination the resident can't see. More units means more lint in the same kind of path. Occupied buildings also mean missed access. A unit we couldn't get into last year is already past the baseline.
That's why we don't tell a property team "annual, no exceptions." Annual is the floor. If dry times are stretching in several units, if the stacks exit the roof, or if last year's report shows units that couldn't be entered, the next cleaning shouldn't wait for the same month to roll around.
A short note for property managers
Interval is only half the job. The other half is knowing which units were completed, which we couldn't access, and which terminations were packed or damaged. We scope that work by unit count, termination type, access, and the completion record—not by wiping the hose in one vacant unit and calling the building done. Start on the commercial and multifamily page if that's the situation.
What should a yearly dryer vent cleaning actually include?
Short answer: Inspect the accessible path, clean the full exhaust line, check the termination, and leave a record of what changed.
"Once a year" isn't a calendar sticker. It's a full-path service. The work on our residential dryer vent cleaning page is built that way:
- Visual review of the accessible dryer connection and vent path
- We use a brush and a vacuum on the line
- A check of the accessible exterior termination or roof vent
- Airflow observations before and after when they apply
- Photos and clear findings
- Recommendations when a damaged hose, a blocked termination, or another condition means cleaning alone will not correct the restriction
Roof and attic runs are a different job from a short wall termination. Access, length, height, and weather all change the work. We confirm the approach before we start.
We're a NADCA member company. We still describe the job in field terms: inspect, clean, verify. If we can't reach a section, we say so. We don't mark an unreachable line as cleaned.
When should I not wait for the next annual cleaning?
Short answer: When the dryer is already telling you the path is restricted.
NFPA's "or more often" trigger is dry time. CPSC 5022 lists the same clue: damp clothes or a longer-than-normal cycle can mean the screen or the exhaust duct is blocked. That's enough to inspect now.
Stop stacking cycles and request service if any of these are true:
- A normal load now takes much longer, or needs a second cycle.
- The laundry room or dryer cabinet is hotter than it used to be.
- You notice a burning smell or a lot of lint around the machine.
- The outdoor hood is weak, stuck, or packed—or you can't see it from the ground.
- You don't know when the full vent, not just the screen, was last cleaned.
A burning smell is a stop-the-dryer sign. Lint can be the cause. An appliance fault can be the cause too. Cleaning should find whether airflow is restricted and say so when cleaning won't fix it.
Request service through the contact form or call (321) 360-9704. Email is info@vent-guys.com. Tell us what you're seeing, where the dryer sits, and—if you know—whether the vent exits a wall or the roof.
We serve homes in Titusville, Palm Bay, Melbourne, Brevard County, and Greater Orlando. Availability depends on the property and the schedule. Send the address and we'll confirm it.
Frequently asked questions
How often should dryer vents be cleaned?
Clean the lint screen before or after every load. CPSC says to clean lint out of the vent pipe at least once a year. NFPA says the same, and to do it sooner if drying is taking longer than normal. NADCA recommends a professional cleaning once a year and is clear that the lint trap isn't enough.
How often should apartment dryer vents be cleaned?
At least once a year—the same official baseline as a house. Shared stacks, roof terminations, and buildings where dryers run most days often need the full path cleaned sooner. The interval is per vent path, not per lint screen. If several units are already slow to dry, don't wait for next year's date. Property-wide work is scoped on the commercial page.
Is emptying the lint trap enough?
No. NADCA states that cleaning the lint trap is not enough. CPSC and NFPA treat the screen and the vent pipe as two jobs: the screen every load, the pipe at least once a year. Fiber that bypasses the screen still collects in the line.
Do you clean dryer vents in Titusville and Brevard County?
Yes. Titusville is in our core service area, along with Palm Bay, Melbourne, Brevard County, and Greater Orlando. Request service or call (321) 360-9704 and include the property address so we can confirm coverage and access.
Need the vent checked? Request service or call (321) 360-9704.
Sources
Technical frequency statements in this article come only from sources opened for this draft:
- U.S. Consumer Product Safety Commission, Release 23-143 (2023-03-08), Save Daylight, Save Lives… — lint filter clean before or after each use; exhaust pipe not restricted; outdoor flap opens; “Clean lint out of the vent pipe at least once a year.” Also estimates a yearly average of 6,400 clothes dryer fires. That fire count is not used in the body so it is not mixed with other datasets. https://www.cpsc.gov/Newsroom/News-Releases/2023/Save-Daylight-Save-Lives-Replace-Batteries-in-Smoke-and-Carbon-Monoxide-Alarms.
- U.S. Consumer Product Safety Commission, Publication 5022, Overheated Clothes Dryers Can Cause Fires. PDF fetched 2026-08-27: https://www.cpsc.gov/s3fs-public/5022.pdf. Lint screen before or after each load; damp clothes / longer drying as a blockage sign; clean the vent and exhaust duct periodically; check the outdoor vent while the dryer is operating; replace plastic or foil accordion duct with rigid or corrugated semi-rigid metal. Landing page: https://www.cpsc.gov/Safety-Education/Safety-Guides/Home-Fire-Electronics-and-Electrical/Overheated-Clothes-Dryers-Can-Cause-Fires.
- National Fire Protection Association, Clothes Dryer Safety tip sheet (© NFPA 2018). PDF fetched 2026-08-27: https://www.nfpa.org/-/media/project/storefront/catalog/files/safety-tip-sheets/dryersafetytips.pdf. “The leading cause of home clothes dryer fires is failure to clean them.” Clean the lint filter before or after each load. “Once a year, or more often if you notice that it is taking longer than normal for your clothes to dry, clean lint out of the vent pipe or have a dryer lint removal service do it for you.”
- National Air Duct Cleaners Association, Don’t Neglect Your Dryer Vents — professional cleaning once per year; lint trap is not enough; with regular use, professionally clean at least once a year. Mentions NADCA’s Dryer Exhaust Duct Performance (DEDP) standard. https://nadca.com/blog/want-make-sure-your-home-safe-your-loved-ones-dont-neglect-your-dryer-vents.
The NFPA 2017 statistical report (Home Fires Involving Clothes Dryers and Washing Machines) was requested this session and timed out. No 2010–2014 fire totals from that report are used here.