A commercial refrigeration unit typically lasts 10 to 15 years with proper maintenance. Factors affecting its lifespan include usage, maintenance practices, and operating conditions. Regular cleaning of coils, checking refrigerant levels, and timely repairs can extend the unit's life. High-traffic environments or poor maintenance may shorten its lifespan, while consistent care can lead to longer service. Upgrading older units to more energy-efficient models can also be a cost-effective decision in the long run.