Lifespan guide

How long does a garbage disposal last?

The average garbage disposal lasts 10 years with proper maintenance. Below: common failures, expected repair costs, and tips to extend service life.

Expected lifespan
10 yrs
Avg repair cost
$90–$280
Avg replacement
$220
Repair success
78%

Common failures

  • ·Jammed flywheel
  • ·Motor failure
  • ·Leaking seals

Maintenance tips to extend lifespan

  • Run cold water while using
  • Ice cubes to sharpen
  • Avoid fibrous food

When to replace

If your garbage disposal is over 7 years old and the quoted repair exceeds $88, replacement is typically the better long-term value. Use our repair vs replace calculator for a personalized recommendation.