How Long Does a Well Pump Last? Lifespan by Pump Type
Quick answer: well pump lifespan by type
Submersible well pumps usually fail after 8 to 15 years; jet pumps last 5 to 10 years. Pressure tanks typically run 10 to 15 years before issues arise, while pressure switches might need replacement every 5 to 10 years. Water quality, frequent short-cycles, and proper system sizing during installation all significantly impact a pump’s longevity.
| Component | Typical Lifespan | Replacement Cost |
|---|---|---|
| Submersible pump | 8-15 years | $300-$2,000 installed |
| Jet pump | 5-10 years | $200-$700 installed |
| Pressure tank | 10-15 years | $200-$500 installed |
| Pressure switch | 5-10 years | ~$25 in parts |
For help with an actively failing pump, see our well pump repair hub.
Lifespan by well system component
Understanding how long a well pump lasts means looking at each major component separately. The pump motor, the pressure tank, and the pressure switch all age on different timelines.
Submersible pumps (8-15 years)
A submersible well pump operates 50-300 feet underground, submerged in water. That environment actually helps it. The stable underground temperature and sealed motor housing protect it from the freeze-thaw cycles and air exposure that wear out above-ground equipment. In a low-sediment well with a correctly sized system, submersibles routinely reach 15 years.
The range narrows on the low end when sediment is present, the pump short-cycles frequently, or the well draws near-capacity. At the 8-year mark, budget for replacement rather than committing to major repairs. We’ve found that a motor rewind on a pump that old rarely makes financial sense.
For a deeper look at submersible pump systems, see our submersible well pump guide.
Jet pumps (5-10 years)
Jet pumps sit above ground, typically in the basement or pump house. They come in two types: shallow-well (less than 25 feet of lift) and deep-well (25-110 feet of lift). Both types are more exposed than submersibles. Temperature swings, humidity, and air contact all accelerate wear.
The tradeoff is easier access. Jet pump motors are visible, serviceable, and usually replaceable without specialized equipment. That makes the shorter lifespan more manageable: a homeowner can replace a jet pump capacitor for $15-$30 or the full motor for a fraction of a submersible replacement job.
Pressure tanks (10-15 years)
Pressure tanks outlast most pumps when the internal bladder stays intact. The failure mode is waterlogging: when the bladder ruptures, the tank fills with water and the pump short-cycles to compensate. Short cycling degrades both the tank and the pump motor simultaneously.
Pretty simple.
A waterlogged pressure tank can’t be repaired, only replaced. Replacement costs $200-$500 installed. Catching waterlogging early prevents the chain reaction that cuts pump life in half. The tire-gauge test on the Schrader valve checks this in under a minute.
Pressure switches (5-10 years)
Pressure switches are the cheapest component in the system (about $25 to replace), but they’re often mistaken for pump failure. A switch with burned or pitted contacts won’t signal the pump to start, producing the same symptom as a dead motor.
Inspect the switch contacts every 2-3 years. Burn marks, corrosion, or pitting indicate end-of-life, so replace it before it fails in a way that leaves you without water.
What if you don’t know your pump type?
Two quick questions identify your pump type. Is the motor visible somewhere in the house or utility room? If yes, it’s a jet pump. If the wiring disappears into a pipe going into the floor or ground, it’s a submersible. For a complete identification guide, see our types of well pumps overview.
5 factors that shorten well pump lifespan
The 8-15 year range assumes reasonable conditions. These five factors push pumps toward the low end, and sometimes below it.
Small detail, real impact.
1. Sediment and sand
Abrasive particles wear pump impellers faster than any other factor. Sandy or silty water from a deteriorating well screen grinds through impellers within a few years. Kocher Geo Well Drilling notes that sediment in water often signals check valve failure. Where the check valve has failed, sand is reaching the pump. A sediment pre-filter installed before the pressure tank is the most effective protection.
2. Short cycling
A pump failing to start correctly due to short cycling, where it turns on and off repeatedly every few seconds, is one of the biggest threats to motor longevity. Each startup draws 3 to 6 times the running current, overheating windings over time. A pump that shorts cycles 20 times an hour rather than 4 to 6 will likely fail much sooner than expected. Typically, short cycling stems from a pressure tank that’s waterlogged or one that’s undersized and can’t maintain its drawdown capacity efficiently.
3. Hard water and mineral deposits
Calcium and iron deposits build up on pump impellers and pressure switch contacts over time. High-iron water is particularly hard on switches. It pits the contacts and causes false-tripping years before the switch’s normal end-of-life. A water softener or iron filter upstream of the pump extends both switch and pump life measurably.
4. Undersized pump
A pump running near maximum capacity continuously wears faster than one with headroom. This often happens in homes that added bathrooms, irrigation systems, or outbuildings after the original pump was sized. If water pressure drops during peak use but the pump tests fine, undersizing may be shortening its life without obvious failure symptoms.
5. Infrequent maintenance
The pressure tank air charge drifts down over time and almost no homeowner checks it annually. A tank with low pre-charge pressure reaches its cut-in point faster and causes more frequent cycling, slow-motion short cycling that shaves years off the pump. Catching it with a tire gauge takes 60 seconds.
Signs your well pump is aging (not just failing)
There’s a difference between a pump that has failed and a pump that’s failing slowly. These aging signs are subtler than acute failure, and more commonly missed.
Pay attention.
- Repair calls increasing: if you’ve called a technician twice in 18 months, the pump is in decline, not just having bad luck
- Gradually declining pressure: not a sudden loss. But a slow drop over months as the motor loses efficiency
- Higher electric bills without explanation: an aging motor draws more current to maintain the same output
- Sputtering air in the water lines: an early sign the pump is struggling to maintain prime, especially in jet pumps
- Rust or discoloration in water that wasn’t there before: casing or pump components corroding from the inside
For active failure symptoms (no water, pump won’t start), the Family Handyman well pump troubleshooting guide{:target=“_blank”} and our own repair pages cover acute diagnosis. The signs above are distinct. They show up years before complete failure.
How to extend your well pump’s lifespan
Most premature pump failures are preventable. These five steps do the most work.
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Check the pressure tank air charge annually. Use a tire gauge on the Schrader valve. The pre-charge should read 2 PSI below the cut-in pressure (28 PSI for a 30/50 switch). Add air with a bicycle pump if it’s low. This takes 60 seconds and prevents short cycling.
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Test your water quality annually. Hard water, iron, and sediment all shorten pump life. Catching elevated iron or sand early lets you install a filter before damage compounds. The EPA private wells guidance{:target=“_blank”} recommends annual testing for all private well owners.
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Install a sediment pre-filter if your water has ever produced grit or if the filter clogs frequently. Keeping sand out of the pump is worth more than any maintenance routine.
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Inspect pressure switch contacts every 2-3 years. Open the cover and look for burn marks or corrosion. A $25 switch replaced proactively avoids the service call when it fails at 2 a.m.
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Budget by pump age. At year 7 for jet pumps or year 10 for submersibles, set aside $300-$2,000 for replacement. A failing pump rarely gives more than a few months of warning. Having the budget ready means you’re not making a rushed decision under pressure.
We recommend checking the pressure tank air charge every spring as the biggest effective way to extend pump life. See our well pump maintenance guide for the full annual inspection protocol and a printable checklist.
For common well pump problems{:target=“_blank”} and how they interact with pump aging, Fresh Water Systems has a useful breakdown organized by symptom.
Our well pump repair guide covers what to do when the pump reaches the end of that runway.
FAQ
How many years does a well pump last?
Submersible well pumps generally hold up for 8 to 15 years, whereas jet pumps typically falter at around half that duration, often failing within 5 to 10 years. Pressure tanks usually stand the test for 10 to 15 years but may necessitate a new pressure switch every 5 to 10 due to wear and tear. The lifespan notably fluctuates based on water quality, usage frequency, and motor cycling. In clean-water conditions with correctly sized tanks, submersibles frequently exceed expectations, occasionally reaching their upper service life of 15 years.
How do I know when my well pump needs replacing?
Key signs are increasing repair frequency, gradually declining water pressure, higher electric bills, and pump age past 10 years for submersibles or 7 years for jet pumps. If you’ve had two service calls in 18 months, the pump is in decline. Our rule of thumb: if repair cost exceeds 50% of replacement cost, replace. See our repair vs replace guide for a full decision framework.
Does a well pump run out of water?
Pumps don’t run out of water, but the aquifer can drop seasonally or during drought, causing the pump to run dry. Running dry even briefly is hard on the motor: submersible pumps rely on the surrounding water for cooling. A pump that’s run dry once may show shortened lifespan even if it restarts and seems fine.
What shortens a well pump’s lifespan the most?
Short cycling from a waterlogged pressure tank is the most common cause of premature pump failure. Each rapid start cycle draws 3-6 times the running current and overheats the motor windings over time. Sediment, hard water, and an undersized pump also accelerate wear, but short cycling is the one factor that can turn a 15-year pump into a 5-year pump.
How much does well pump replacement cost?
Submersible pump failures can cost upwards of $300 for installation to over $2,000 depending on the well’s depth and required pump capacity. Pressure tank replacement is usually between $200 and $500. A pressure switch might just need a $25 parts swap if you’re handy enough; in most cases, though, it’s better left to professionals unless you’ve done similar repairs before. Replacing the controller will likely set you back about $75. Always verify regional labor costs as they can vary widely. Don’t hesitate to seek two quotes from licensed well contractors for peace of mind and accuracy.