The answer to 'when to clean dryer vent cleaning' is that you should have your dryer vent cleaned at least once a year, or more frequently if you notice any issues. Regularly cleaning your dryer vent is important to prevent fire hazards, improve energy efficiency, and extend the life of your dryer.
Over time, lint and debris can build up in the vent, restricting airflow and creating a fire risk. Cleaning the vent annually helps remove this buildup and ensures your dryer is operating safely and efficiently. Signs that it's time to clean your vent include longer drying times, increased energy bills, or visible lint buildup around the exterior vent.