A submersible well pump typically lasts about 8 to 15 years; published averages run about 10 to 14 years. Pressure tanks are often estimated at 5 to 15 years. Real life depends on your water, how often the pump cycles and how the system was set up. Many local wells were built from 1988 to 2007.
Updated October 2026
Safety first: well pumps run on 230/240-volt circuits. Don’t open the pressure switch, control box or well cap wiring.
Typical lifespans
| Part | Typical life (estimate) | Notes |
|---|---|---|
| Submersible pump | 8 to 15 years | Published averages range from about 10 to 14 years. |
| Pressure tank | 5 to 15 years | No official source. Treat as a rough estimate. |
Signs of wear
| Likely cause | What you can safely check | Needs a licensed pro? |
|---|---|---|
| Pressure tank losing its air charge (pump clicks on and off fast) | Watch the pressure gauge. With the power OFF, check the tank air as the tank label describes. | Yes, for tank or switch replacement |
| Worn pump (pressure weaker than it used to be) | Do all faucets have low pressure? What does the gauge read? | Yes |
| Pump or well problem (air or sand in the water) | Is it at every tap? Did it start after heavy rain? | Yes |
| Tripped breaker, failed pump or control (no water) | Flip the pump breaker fully off, then on, once. Did a storm or power outage just happen? | Yes, if the breaker trips again or water doesn’t return |
More detail: short cycling, low pressure, pressure tank problems and no water.
Why this matters around here
- DNR records for 22 local townships show a building boom from 1988 to 2007, with 130 to 285 new wells a year.
- About 4,200 of those wells are now 19 to 38 years old. Based on typical lifespans, many may already be on a second or third pump and tank.
- New wells drilled here since 2010 have a median depth of 220 feet. Deep pumps cost more to replace.
Insurance
Homeowners policies usually exclude wear and tear and mechanical breakdown. Lightning, fire and wind damage may be covered. Check your policy.
When you need a licensed professional
- Replacing a pump, pressure tank, pressure switch or control box.
- The breaker trips again after one reset.
- Air, sand or pressure problems that keep coming back.
- Wisconsin rules require a DNR-licensed pump installer for pump and pressure-tank work on a drinking-water well; check with DNR if you’re unsure.
Related
- What well work costs in Wisconsin
- Typical well depths by town
- Find your well construction report
- Pressure tank problems
Sources
