Pump Lifespan
What is the average lifespan of a well pump?
Well pump life is less about the calendar than about how many times the motor has started. Two identical pumps installed the same week can be five years apart in service life depending entirely on whether the pressure tank behind them was doing its job.
Short answer
A submersible well pump generally lasts 8 to 15 years, and most Northern Colorado systems land around 10 to 12. Jet pumps mounted above ground tend to run shorter, roughly 6 to 10 years, because they work harder to lift the same water. Lifespan is driven less by age than by cycling. Every start is wear, so an undersized or waterlogged pressure tank that forces short, rapid cycles kills a pump years early. Hard, mineral-heavy water abrades impellers, and sand does the same. Lightning surges take out plenty of pumps in a single afternoon. A properly sized tank, a working check valve and a surge arrestor are the cheapest life extension available.
Expected Life by Pump Type
- Submersible, 4-inch residential: 8 to 15 years, with 10 to 12 typical in Larimer County.
- Above-ground jet pump: 6 to 10 years. They work harder to lift the same water and sit in harsher temperature swings.
- Constant-pressure variable-speed: often 12 to 18 years, because soft starts eliminate the cycling that kills conventional pumps.
- Pressure tank: 8 to 12 years for a bladder tank. The tank almost always fails before the pump, and when it does it starts shortening the pump's life immediately.
- Pressure switch: 5 to 10 years. Cheap, routine, and worth replacing on sight once the contacts pit.
What Shortens Pump Life Here
Short cycling. The number one killer. A waterlogged tank can force a pump to start forty times an hour instead of four, and every start draws locked-rotor current through the windings.
Hard water. Northern Colorado groundwater carries real mineral load. Scale builds on impellers and narrows the drop pipe, and the motor works harder every year to move the same gallons.
Sand and silt. A pump set too close to the well bottom pulls sediment that abrades the impeller stack.
Running dry. Low-yield wells and heavy summer irrigation draw the water level below the intake. Minutes of dry running do permanent damage.
Lightning. Front Range summer storms put surges through rural service drops that destroy control boxes and windings outright.
What Reliably Adds Years
- A correctly sized pressure tank, with the pre-charge checked annually against the switch cut-in setting
- A pump set at the right depth for your measured static and pumping water levels, not a round number
- A surge arrestor at the control box, which costs less than a service call
- A working check valve, so the pump is not restarting against a drained column
- Annual flow and drawdown testing, which catches a declining well before it starts running the pump dry
- Sediment filtration where the well produces sand
Once a pump passes ten years, the useful move is to plan the replacement rather than wait for it. Pumps fail in January as readily as in June, and a scheduled job always costs less than an emergency one. Our well pump service covers inspection, testing and planned replacement across Larimer and Weld counties.
How many years does a well pump typically last?
Ten to twelve years is the realistic average for a submersible pump in Northern Colorado, though well-maintained systems reach fifteen and neglected ones fail at six. Above-ground jet pumps average less. What shortens them is predictable: rapid cycling from a failed pressure tank bladder, sediment from a pump set too close to the well bottom, hard water scaling the impellers, and electrical surges. What extends them is equally predictable: a correctly sized pressure tank, a pump set at the right depth for your static water level, and a surge arrestor at the control box. If yours is past ten years, plan the replacement instead of waiting for it to fail in January.
If you do not know your pump's age, the Colorado Division of Water Resources well database usually has the pump installation report on file. We pull those records as part of any well inspection, which tells you where in the cycle you actually are.
Talk to a Licensed Pump Technician
Get a Straight Answer About Your Well Pump
Our licensed pump technicians test before they quote: amp draw, insulation resistance, tank pre-charge and water level, with the readings written down.
We serve private wells across Fort Collins, Loveland, Wellington, Laporte, Berthoud, Windsor, Greeley, Estes Park and Red Feather Lakes.
Visit our Well Pump Services page to review the full scope of work and request service.