Short answer: Clean your dryer vent at least once a year, and sooner if clothes start taking longer to dry. That’s the National Fire Protection Association’s guidance. Big households, pets, long vent runs and roof vents fill up faster and often need it more than once a year. Clean the lint screen before or after every load.
How often to clean each part of the dryer vent
| Part | How often | Who |
|---|---|---|
| Lint screen | Every load | You |
| Behind the dryer and the connector hose | Check a few times a year; clean it with the vent | You or a pro |
| Vent duct (the pipe in the wall, attic or ceiling) | At least once a year | A pro, or you with the right tools |
| Outside vent hood and flap | Check a few times a year, and after snowstorms | You |
Who needs to clean their dryer vent more than once a year?
- Big households that run the dryer most days.
- Homes with pets, because pet hair adds to the lint.
- Long or twisting vent runs, where lint has more places to catch.
- Roof vents, where the cap is hard to see and lint collects at the top.
- Rentals and multi-unit buildings, where nobody is sure when the vent was last done.
Why does the dryer vent need cleaning if you clean the lint screen?
The lint screen only catches part of the lint. The rest blows past it into the vent line, where it packs in over time, slows the airflow, and makes the dryer run hotter and longer. The National Fire Protection Association found failure to clean was the leading cause (31%) of home dryer and washer fires.
When shouldn’t you wait a full year?
If clothes start taking longer to dry, or the outside vent barely blows air, don’t wait for the yearly cleaning. See the signs of a clogged dryer vent.
How often should you have your dryer vent professionally cleaned?
Once a year for most homes. A brush kit from the hardware store reaches part of the line; a professional cleaning clears the full run from the dryer to the outside hood. With us, the whole line is camera-inspected end to end, so you can see it’s clear.
What a yearly dryer vent cleaning includes with us
We clean the whole line, from the back of the dryer to the outside hood, and camera-inspect it end to end. Our crews wear boot covers inside your home. On our yearly plan, every cleaning after the first is $50 less.
Frequently asked questions
How often should a dryer vent be cleaned?
At least once a year, and sooner if clothes start taking longer to dry. Big households, homes with pets, and long or roof vent runs often need it more than once a year.
How often should you clean the dryer vent hose?
Clean the hose behind the dryer whenever the vent is cleaned, at least once a year. Replace it if it’s crushed, torn, plastic or a foil accordion hose, and use metal instead, as the Consumer Product Safety Commission recommends.
Should a dryer vent be cleaned every 6 months?
Only if it fills up fast. A big family running the dryer daily, pets, or a long or roof vent run can need it twice a year. Most homes are fine with once a year.
Can you clean a dryer vent too often?
Not really. Once a year is the minimum, and a vent that clogs quickly is a sign of a layout problem, like a long run, too many bends or a crushed hose.
Do you offer a yearly dryer vent cleaning plan?
Yes. On our yearly plan, every cleaning after the first is $50 less.
Related guides
- Signs your dryer vent is clogged
- Why is the “Check Vent” light on?
- Cleaning your dryer vent yourself vs. hiring a pro
- Dryer vent smells, birds and animals
- How much dryer vent cleaning costs
- Dryer vent replacement
- Roof-vented dryers in Vermont
Sources
- NFPA: Clothes Dryer and Washing Machine Safety Tips
- NFPA: Home Fires Involving Clothes Dryers and Washing Machines (fact sheet, 2017)
- U.S. Consumer Product Safety Commission: Overheated Clothes Dryers Can Cause Fires
Book your yearly dryer vent cleaning
Mansfield Services cleans dryer vents across Chittenden, Lamoille and Franklin counties. Book online in a couple of minutes, or call or text (802) 777-3210.
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