Dryer vents are one of the most overlooked maintenance areas in homes and commercial properties but they’re also one of the most dangerous when neglected. Each year, thousands of dryer fires are caused by clogged or poorly maintained vents. The risk is real, and the warning signs are easy to miss if you’re not paying attention.
Here are the top 5 warning signs your dryer vent needs immediate cleaning, and why delaying it could put your home or business at serious risk.
If a normal drying cycle turns into multiple runs, it’s a major red flag. A clogged dryer vent restricts airflow, making your dryer work harder and less efficiently. This not only wastes energy but significantly increases heat buildup inside the machine.
A burning or musty odor when your dryer is running could mean lint is trapped and overheating inside the vent or lint trap. This is one of the clearest signs of an impending fire hazard and requires immediate attention.
If your dryer or laundry room feels unusually hot to the touch, it’s a sign the hot air isn’t escaping properly through the vent. Overheating components can lead to dryer failure or ignite flammable lint buildup.
Notice lint collecting around the back of the dryer or outside vent exhaust? That means lint is not being pushed out properly and it’s starting to back up into your space.
When the dryer is running, the flap on your outdoor vent should open to release airflow. If it doesn’t move, or only opens partially, you’re likely dealing with a clogged vent that needs immediate cleaning.
According to the U.S. Fire Administration, clogged dryer vents are the leading cause of dryer-related fires, responsible for hundreds of injuries and millions in property damage every year. Lint is extremely flammable, and once ignited in a confined space like a dryer vent, fire can spread quickly through walls or ceilings.
Cleaning your dryer vent isn’t just about performance it’s a vital safety measure.
Schedule professional dryer vent cleaning at least once a year
Check for visible lint and airflow regularly
Educate family members or staff about the warning signs
Install a dryer vent alert system if in a commercial space
Don’t wait until it’s too late. If you notice even one of these warning signs, it’s time to act. A clean dryer vent means better safety, lower energy bills, faster drying—and peace of mind.