8-15 years (roughly 9-10 years average; budget models trend toward 7-9, higher-end toward 10-12)
Typical lifespan
| Type | Typical lifespan | Source |
|---|---|---|
| Dishwasher (average quality) | 8-15 years (roughly 9-10 years average; budget models trend toward 7-9, higher-end toward 10-12) | Appliance-industry manufacturer survey data widely cited by home-improvement and appliance-repair sources |
Signs you need to replace it
- !Poor cleaning performance that doesn't improve after cleaning the filter/spray arms
- !Excessive noise during cycles
- !Frequent breakdowns or repeated repair calls
- !Unit is over 8-10 years old and needs a repair
What replacement costs
$400–$3,000
New unit: $400-$3,000 depending on tier. Fully installed (incl. labor, removal of old unit): typically $540-$2,175, national average around $1,200-$1,360.
Maintenance that extends its life
- Clean the filter monthly — most poor-cleaning complaints trace back to a clogged filter, not a dying machine
- Use rinse aid to prevent mineral spotting/buildup
- Run hot water in the sink before starting a cycle so the dishwasher starts with hot water, not cold
FAQ
Is 10 years old for a dishwasher a lot?
It's right at the edge — average life expectancy is 8-15 years. A 10-year-old unit needing a repair is usually a candidate for replacement rather than repair, especially if the repair involves the pump or motor.
Why is my dishwasher not cleaning well even though it's not that old?
Almost always a clogged filter or blocked spray arm holes, not a failing machine — check and clean those before assuming it needs replacing.