How Long Do Dishwashers Last? Average Lifespan by Brand
In most kitchens the dishwasher drains through the garbage disposal, and the two units age together — if yours is getting loud or slow, check how long garbage disposals last.
A dishwasher lasts about 9 years, according to the National Association of Home Builders. Hard water buildup and a neglected filter are the two things Bozmanfix technicians see cut a dishwasher’s life short most often.
See also what a heating element repair costs.
In the Tampa Bay area we cover dishwasher work across the metro — see dishwasher repair in Tampa Bay.
Hard water is one of the biggest lifespan killers for dishwashers — see how hard water affects your dishwasher for what scale does to the pump, heater and spray arms.
Dishwasher Lifespan by Tier
The NAHB figure of 9 years covers all dishwashers; no survey publishes a separate number by price tier. What separates the tiers is what they are built from:
| Dishwasher tier | Why |
|---|---|
| Budget / entry-level | Plastic components, lighter-duty pumps and motors |
| Mid-range | Better pumps, stainless tubs, sturdier racks |
| Premium (Bosch, KitchenAid) | Higher-grade motors, quieter and more durable builds |
| Luxury (Miele) | Engineered and tested for two decades of use |
The 9-year NAHB figure is an average across every price tier. A builder-grade unit is built to a price; a Bosch or Miele is built to be repaired. Build quality, not just age, decides whether a repair is worth it. Brand-specific repair: GE dishwasher repair.
Dishwasher Lifespan by Brand
No dishwasher maker publishes an expected lifespan, so every brand starts from the NAHB figure of about 9 years. The one maker that publishes a durability test is Miele. GE is the dishwasher brand Bozmanfix services most, followed by Whirlpool, Frigidaire, Samsung and Bosch; that order reflects how many of each are installed, not which one is more reliable.
How long does a Miele dishwasher last?
Miele tests its G 5000 and G 7000 dishwashers for 5,600 wash cycles, the equivalent of 5.6 cycles a week for 20 years, and says plainly that this is not a guarantee that every machine lasts 20 years. It is the only dishwasher maker that publishes a figure of this kind.
How long does a Bosch dishwasher last?
About 9 years on the NAHB average; Bosch does not publish its own figure. Bosch is the fifth most serviced dishwasher brand in Bozmanfix records, and its drain pump and filter are where most of that work happens.
How long do GE and Whirlpool dishwashers last?
About 9 years on the NAHB average; neither publishes its own figure. GE and Whirlpool are the two dishwasher brands Bozmanfix services most, which reflects how many are installed in the homes we visit.
How long do Samsung, LG, KitchenAid and Frigidaire dishwashers last?
About 9 years on the NAHB average; none of them publishes its own figure. On any of them the deciding question is the failed part: a pump, latch or valve is usually worth fixing, a control board on an older machine is a closer call.
What Determines How Long a Dishwasher Lasts
- Hard water — the number-one lifespan killer. Mineral scale builds up on the heating element, spray arms, and pump, forcing everything to work harder. A water softener or regular descaling dramatically extends life.
- Filter maintenance — a clogged filter starves the pump and lets food recirculate. Rinsing the filter monthly is the single easiest way to add years.
- Cycle frequency — a unit run twice a day in a big household wears faster than one run three times a week.
- Overloading and abuse — jamming racks bends spray arms and strains the door and latch over time.
- Incoming water temperature — water that’s too cold makes the heater work harder every cycle.
- Build quality — stainless tubs, better pumps, and metal racks simply outlast plastic ones.
Why Dishwashers Don’t Last as Long as They Used To
Older dishwashers ran on simple mechanical timers and heavy-duty motors that ran for decades. Today’s units trade some of that durability for efficiency, quietness, and features. Modern dishwashers use electronic control boards that can fail, soil sensors and multiple valves that add complexity, and — on budget models — plastic tubs and lighter pumps to hit a price point.
They clean better with far less water and energy, but every sensor, valve and board is one more part that can fail. The upside: most modern failures are single-part repairs, not the end of the machine.
Typical Dishwasher Repair Costs
Knowing part costs makes the repair-or-replace call simple. Typical U.S. ranges (parts and labor combined), varying by brand and region:
| Repair | Typical cost |
|---|---|
| Spray arm | $274–$400 |
| Door latch / switch | $285–$344 |
| Door gasket / seal | $274–$368 |
Compare a quote to a new dishwasher. On a mid-range or premium unit, most repairs are clearly worth it; on a budget model near the end of its life, a $400 pump job is a closer call.
Signs Your Dishwasher Is Nearing the End
- Dishes come out dirty or gritty even on long cycles, after you’ve cleaned the filter and spray arms
- Standing water in the bottom that won’t drain
- Water leaking onto the floor from the door or underneath
- Rust inside the tub or on the racks, or cracks in the tub itself
- The door won’t latch or seal properly
- It won’t start, stops mid-cycle, or trips the breaker
- Repairs starting to stack up within a year or two
Repair or Replace — the Honest Rule
The benchmark is the 50% rule: if a repair costs more than half of a comparable new unit — and the machine is past half its expected life — replace; otherwise repair. In practice: under about 5 years old, half the NAHB 9-year life, repair almost always makes sense.
Between 5 and 9 years, it depends on the part — a drain pump, valve, spray arm, or door latch is worth fixing; a failed main pump-and-motor or control board on a budget unit is a closer call. Past the 9-year NAHB average on an entry-level model, a major failure usually means replacement.
Premium brands like Bosch and Miele are the exception — they’re built to be repaired, and Miele tests its machines for the equivalent of 20 years of use.
How to Make Your Dishwasher Last Longer
- Rinse the filter monthly — the single easiest lifespan extender.
- Run a cleaning cycle monthly with a dishwasher cleaner or vinegar to clear grease and scale.
- Manage hard water — a softener or rinse aid slows mineral buildup on the heater and pump.
- Don’t overload — keep spray arms free to spin and avoid bending racks.
- Wipe the door seal and check spray-arm holes for debris every few weeks.
- Run hot water at the sink before starting so the first fill is hot.
🍽️ Not sure if your dishwasher is worth saving? A $99 diagnostic (applied to the repair) tells you exactly what’s failing — before you spend on a replacement you may not need.
How Dishwashers Compare to Other Appliances
Dishwashers have one of the widest lifespan ranges of any appliance, driven almost entirely by brand tier. Here’s how the majors compare:
| Appliance | Life expectancy (NAHB) |
|---|---|
| Dishwasher | 9 years |
| Washing machine | 10 years |
| Refrigerator | 13 years |
| Dryer | 13 years |
| Range | 13 years electric, 15 years gas |
Source: NAHB and Bank of America Home Equity, Study of Life Expectancy of Home Components, 2007.
Frequently Asked Questions
How long does the average dishwasher last?
About 9 years, according to the National Association of Home Builders. No survey publishes separate figures by price tier; hard water and a neglected filter are what most often cut a dishwasher short.
Which dishwasher brand lasts the longest?
No maker publishes a lifespan, so every brand starts from the NAHB average of about 9 years. Miele is the only maker that publishes a durability test: 5,600 cycles, the equivalent of 20 years at 5.6 washes a week, which Miele says is not a guarantee.
Is it worth repairing a 10-year-old dishwasher?
It depends on the brand and repair. On a premium unit (Bosch, Miele, KitchenAid), yes — they are built to be repaired, and Miele tests its machines for the equivalent of 20 years of use. On a budget model, a small part like a pump or latch is worth fixing, but a failed motor or control board is a closer call.
How much does it cost to repair a dishwasher?
Most Bozmanfix dishwasher repairs run $274–$400 in parts and labor. A spray arm or door latch, for example, is $285–$344 installed.
Why don’t dishwashers last as long as they used to?
Modern dishwashers use electronic control boards, more sensors and valves, and on budget models plastic tubs and lighter pumps. They clean with far less water and energy, but every sensor, valve and board is one more part that can fail; the NAHB puts the average dishwasher at about 9 years.
What makes a dishwasher last longer?
Managing hard water with a softener or descaling, rinsing the filter monthly, running a monthly cleaning cycle, not overloading, and running hot water before a cycle.
Do Bosch and Miele dishwashers last longer?
Miele tests its G 5000 and G 7000 dishwashers for the equivalent of 20 years of use and says this is not a guarantee. Bosch publishes no figure, so it starts from the same 9-year NAHB average as every other brand; what matters more is the failed part and the cost of the repair.
What are the first signs a dishwasher is failing?
Dishes coming out dirty after a full cycle, standing water that won’t drain, leaks onto the floor, rust or cracks in the tub, a door that won’t latch, and repairs stacking up in a short period.
How long does a Bosch dishwasher last?
About 9 years on the National Association of Home Builders average; Bosch does not publish its own figure.
How long does a Miele dishwasher last?
Miele tests its G 5000 and G 7000 dishwashers for 5,600 cycles, the equivalent of 20 years at 5.6 washes a week, and says this is not a guarantee of a 20-year life.
How often should I clean my dishwasher filter?
Rinse the filter at least once a month, and more often if you don’t pre-rinse dishes. A clogged filter is one of the most common causes of poor cleaning and premature pump wear.
Dishwasher Leaving Dishes Dirty or Not Draining?
Before you replace it, find out what’s actually wrong. Bozmanfix diagnoses and repairs dishwashers of every brand — same-day and next-day — with a $99 diagnostic applied to your repair. We’ll tell you honestly whether it’s worth fixing.