The answer to 'how long does dryer vent cleaning last' is that a professional dryer vent cleaning typically lasts 1-2 years before needing to be done again. The lifespan of a dryer vent cleaning depends on factors like the length and complexity of the vent, how often the dryer is used, and whether there are any obstructions or lint buildup in the vent.
Most experts recommend having your dryer vent professionally cleaned at least once a year to maintain efficiency and reduce the risk of fire. Regular cleaning helps remove lint and debris that can accumulate over time, ensuring proper airflow and preventing potential safety issues.