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How to Clean a Dryer Vent: Step by Step
You can clear a short, accessible dryer vent in under an hour with a brush kit and a vacuum. Here is the method, the safety rules and when to stop.
Last reviewed October 1, 2026. Written and reviewed by the Plano Dryer Pros team. How we create content
To clean a dryer vent, unplug the dryer, disconnect the duct, and use a brush kit and vacuum to remove lint from the dryer end, the duct and the outside hood. Clear the lint housing, reconnect the duct securely and run the ten-minute airflow test. A long, bent or attic run is better left to a technician.
Key takeaways
- Unplug the dryer, and close the gas valve on a gas dryer, before you start.
- Clear all four places: the lint screen, the lint housing, the duct and the outside hood.
- Reconnect the duct firmly and run the ten-minute airflow test afterward.
- A long, bent or attic run is a job for a technician.
What you need
- A dryer vent brush kit with flexible rods
- A vacuum with a long, narrow attachment
- A screwdriver or nut driver, and foil tape or a clamp
- Gloves and a dust mask, because lint is fine and dusty
- A flashlight
Step by step
- Unplug the dryer, and on a gas dryer close the gas shutoff valve.
- Pull the dryer out carefully, so you do not crush the duct or strain the gas connector.
- Disconnect the duct from the back of the dryer and from the wall.
- Vacuum the lint housing under the lint screen, and the dryer’s outlet, with the narrow attachment.
- Brush the duct from the inside outward, adding rods as you go, and vacuum the lint that comes out.
- Clear the outside hood: remove lint and any nest, check the flap moves freely and replace a damaged hood.
- Reconnect the duct with foil tape or clamps, not screws that stick into the duct, and push the dryer back without kinking it.
- Run the ten-minute test: the air at the hood should be strong and warm, and the flap should open wide.
How do I clean a dryer vent myself?
Unplug the dryer, disconnect the duct and use a brush kit and a vacuum to clear lint from the lint housing, the duct and the outside hood. Reconnect the duct with foil tape or clamps and run the dryer empty for ten minutes to check the airflow at the hood. A long or hard-to-reach run needs a technician.
Safety rules
- Never clean the vent with the dryer plugged in or the gas valve open
- Do not use a leaf blower, which packs lint tighter and can blow it back
- Replace foil or vinyl duct that is crushed, torn or brittle with metal duct
- If you smell gas at any point, leave the house and call 911 and Atmos Energy at 866.322.8667
How often should I clean my dryer vent?
Clear the lint screen every load, check the outside hood every season and after storms, and clean the whole vent run about once a year. Do it more often with a large household, pets, a long run or many bends. If clothes start needing two cycles, check it right away.
Can I use a leaf blower to clean my dryer vent?
It is not recommended. A leaf blower can force lint tighter at the bends and blow it back toward the dryer or into the room. A brush kit and a vacuum pull the lint out, which is the safer way. For a long or awkward run, a technician has the right tools.
When to hire a professional
Call a technician if the run is long, goes through an attic or roof, has many bends, is behind a stacked unit or still restricts airflow after you clean it. A clear vent typically costs about $100 to $200 in Plano. See the vent safety guide and the vent FAQ.
How do I know the vent is clean after I have done it?
Run the dryer empty on high for ten minutes and feel the air at the outside hood. It should be strong and warm, with the flap open wide, and clothes should dry in one normal cycle again. A weak flow means lint is still blocking the duct or the housing.
Sources
- National Fire Protection Association, Clothes Dryers and Washing Machines fact sheet (2010 to 2014 annual averages)
- Your dryer’s installation and service manual, which governs over any general guidance on this page
- Plano Dryer Pros estimates of typical local repair pricing, checked against national consumer cost guides for context. See our Editorial Policy.
Frequently asked questions
How long does it take to clean a dryer vent?
A short, accessible run usually takes under an hour with a brush kit and a vacuum, while a long or awkward run takes longer. Allow time to pull the dryer out and reconnect the duct carefully.
Do I need to disconnect the duct from the dryer?
Yes, for a proper clean, so you can clear the dryer’s outlet and brush the duct from the inside. Reconnect it securely, because a loose joint lets lint and moist air escape into the room.
What if I find a bird’s nest in the hood?
Remove it, check the duct behind it for more, and replace a hood whose flap is broken or missing. A tight-closing flap and no screen is the better design. A nest is also a sign the hood needs checking more often.
Should I clean the vent if my dryer works fine?
Yes. Lint builds up gradually, and a dryer that still works can already be running hotter. A yearly check keeps the risk and the repair bills down, and it is cheaper than a repair.
Does cleaning the vent help my dryer dry faster?
Usually, yes. Restricted airflow is the most common reason a dryer needs two cycles, so clearing it often restores normal drying time and reduces wear on the heat parts.
Get your dryer working again
Call and a person will answer, or request a repair online. You get the full price in writing before any work starts.