How often should I have my dryer vent cleaned professionally?

Most residential dryer vents should be professionally cleaned at least once every 12 months to ensure safety and efficiency. However, households with large families, pets that shed, or long vent runs with multiple elbows may require service every six to nine months. Regular maintenance prevents the excessive accumulation of lint, which is the leading cause of dryer-related house fires.

What are the primary warning signs of a clogged dryer vent?

The most common indicator of a blockage is when clothes take more than one cycle to dry or feel unusually hot to the touch at the end of a cycle. You may also notice a musty odor, a burning smell during operation, or visible lint accumulation around the exterior vent opening. If the vent hood flap outside does not open while the dryer is running, it is a clear sign that airflow is significantly restricted.