Home Safety
How to Clean Your Dryer Vent (and Why It's a Fire Risk)
4 min read·Updated July 17, 2026
Dryers cause thousands of home fires a year, and lint buildup is the leading cause. The good news: cleaning the vent is a 20-minute job.
How often
Clean the full vent duct at least once a year — more often for a large household or a long duct run. Clean the lint screen after every single load; that's your first line of defense.
Warning signs it's clogged
- Clothes take two cycles to dry.
- The dryer or laundry room feels unusually hot.
- A burning smell during a cycle.
- The vent flap outside barely opens when running.
How to clean it
- 1Unplug the dryer (and shut off the gas valve on gas models).
- 2Pull the dryer out and disconnect the vent duct from the back.
- 3Vacuum the lint from the duct, the dryer's outlet, and the wall duct.
- 4Go outside and clean the exterior vent hood and flap.
- 5Reconnect everything, push the dryer back, and run a short cycle to confirm airflow.
A flexible dryer-vent brush (about $15) makes reaching deep into the duct far easier and pays for itself the first time.
Make it a habit
It's the kind of task that's easy to forget for years — until it's a problem. Upkeepery keeps it on a yearly schedule and reminds you, so a quick chore never becomes a hazard.