How Often Should You Clean Your Dryer Vent?

Most households should have their dryer vent professionally cleaned once a year, but several factors can push that timeline shorter — larger families doing frequent loads, homes with long or multi-bend duct runs, and older homes still using flexible foil ducting instead of rigid metal.

The clearest early warning sign is drying time. If a load that used to take one cycle now regularly needs two or three, restricted airflow from lint buildup is almost always the cause — not a failing dryer.

A burning smell during operation, or the dryer/laundry room feeling unusually hot, are more urgent signs that shouldn't wait for a scheduled cleaning.

The lint trap only catches a fraction of the lint your dryer produces — the real accumulation happens inside the duct run itself, which a household vacuum can't reach. Professional cleaning uses a rotary brush system to clear the entire path from the dryer connection to the exterior vent hood.

The U.S. Fire Administration attributes thousands of home fires annually to dryer vent lint buildup, which makes this one of the more overlooked-but-preventable safety issues in a typical home.

If your home still has flexible foil ducting, ask about rigid metal duct replacement during your next cleaning — it resists lint buildup, sagging, and crushing far better, and many current codes recommend or require it for new installations.