The answer to 'lifespan of garbage disposal' is that the average lifespan of a garbage disposal is 8-12 years with proper care and maintenance. Garbage disposals are durable appliances, but they do have a limited lifespan and will eventually need to be replaced. Factors that can impact the lifespan include the quality of the disposal, how often it is used, and how well it is maintained.
Proper maintenance like regularly cleaning the disposal and avoiding putting certain items down the drain can help extend its lifespan. When a garbage disposal starts making unusual noises, doesn't grind as efficiently, or stops working altogether, it's usually time to consider replacing it. Calling a professional plumber to inspect and diagnose the issue can help determine if the disposal needs to be repaired or replaced.