5 Signs Your Dryer Vent Needs Cleaning (And Why It Matters)

Most homeowners don't think about their dryer vent until the dryer stops working — or worse. The U.S. Fire Administration reports approximately 2,900 residential dryer fires annually, and lint-clogged vents are responsible for the majority of them. The good news: every one of those fires is preventable with regular cleaning.

Here are the five signs that tell you it's time to schedule a professional dryer vent cleaning.

Sign 1: Clothes are taking more than one cycle to dry

This is the most common and obvious sign. When your dryer vent is partially or fully clogged, hot moist air can't escape efficiently. The dryer runs the full cycle, but clothes come out still damp. You run it again. This costs you time, electricity, and wears out your dryer faster.

A properly functioning dryer should dry a standard load of clothes in 35 to 45 minutes. If you're regularly running two cycles, your vent is almost certainly the issue.

Sign 2: The dryer or clothes feel unusually hot

Reach into your dryer at the end of a cycle. The clothes should feel warm — not hot enough to be uncomfortable to touch, and the dryer cabinet itself shouldn't feel hot on the exterior. If either of those things is true, your dryer is overheating because heat can't escape through the clogged vent.

Sign 3: A burning smell during the drying cycle

Any burning smell from your dryer should be taken seriously. Lint is highly flammable, and when it accumulates inside the vent and around the dryer's heating element, it can smolder before it ignites. If you smell burning — even faintly — stop the dryer and don't use it again until the vent has been inspected and cleaned.

Sign 4: The vent flap outside isn't opening during operation

Your dryer has an exterior vent termination with a flap or damper that opens when the dryer is running and closes when it isn't. Go outside while your dryer is running. You should see the flap open with airflow pushing out. If it's not moving, the vent is blocked.

While you're out there, check for lint buildup around the vent opening, bird nests (common in spring and summer), or any obstruction. Even partial blockage reduces efficiency significantly.

Sign 5: It's been more than a year since the last cleaning

If you can't remember when the vent was last cleaned — or if you've never had it cleaned — that's your fifth sign. Most households benefit from annual dryer vent cleaning. Heavy dryers users (daily laundry, large families, frequent towels and bedding) may need cleaning every 6 to 9 months.

What professional dryer vent cleaning involves

A professional cleaning is not the same as vacuuming the lint trap. The technician disconnects the dryer, runs a rotating brush through the entire vent run from the dryer to the exterior termination, clears any obstruction, reassembles and tests airflow. The job typically takes 30 to 60 minutes.

At The Air Ducters, we serve Raleigh, Cary, Apex, Durham, and the Triangle area. NC licensed and insured. BBB A+. Call (984) 459-7571 or request a free quote online.