Quick answer: if your pump quit suddenly, the cause is usually an inexpensive electrical part, with published North Carolina prices of about $100 to $500 for a switch, capacitor, or control box. If the motor has burned out, pulling and replacing a submersible pump typically runs $1,500 to $3,500 or more. A contractor has to test the system to know which one you have.
What usually goes wrong with a well pump
A well system has more parts than most people realize. The diagram shows a typical submersible setup.
Here is how the common symptoms map to causes and published repair ranges. Prices are estimates from published North Carolina guides.
| Symptom | Likely cause | Published range |
|---|---|---|
| Pump will not start, no hum | Pressure switch | $120 to $200 |
| Hums but does not start | Start capacitor | $100 to $175 |
| Three-wire pump will not start | Control box | $200 to $500 |
| Clicking on and off, bouncing gauge | Pressure tank | $300 to $800 |
| Runs but little or no water | Worn pump, broken drop pipe, check valve | $800 to $1,500 to pull and repair |
| Motor burned out | Pump replacement | $1,500 to $3,500, higher in deep wells |
How a well contractor diagnoses the problem
A good diagnosis starts with the cheap and easy tests, so you do not pay for a pulled pump that was never the problem. Contractors who publish their process describe much the same sequence:
- Listen and look. They ask what you noticed, then check the pressure gauge, the tank, and the area around the wellhead.
- Check power. They measure voltage at the pressure switch to see whether the pump is being told to run and whether it is getting power.
- Measure what the pump draws. An amp reading tells them whether the motor is working normally, struggling, or open.
- Test the pressure tank. The tank's air charge should sit about 2 pounds per square inch below the pressure at which the pump turns on, according to well manuals published by state agencies. A wrong charge makes the pump cycle too often.
- Pull the pump only when the tests point to the well. That is when drop pipe, wire, and the pump itself get inspected.
All of this involves live electrical equipment, so it is work for the contractor. For safe checks before the call, see what to check when your well has no water.
Repair or replace?
Two rules of thumb show up in North Carolina cost guides. First, submersible pumps commonly last 8 to 15 years and jet pumps 10 to 20 years. Second, if a repair would cost more than about 40 percent of a new pump and the pump is near the end of its expected life, replacement is usually the smarter spend.
The argument for replacing is strongest when the pump has to come out of the well anyway, because pulling it from a deep mountain well is most of the cost. If your pump is old, ask whether to replace the drop pipe, wire, switch, and a worn tank at the same time. Read the full breakdown on well pump replacement and see the numbers in the well pump replacement cost guide.
What North Carolina requires of the contractor
Well work is regulated, and knowing the basics helps you spot a shortcut.
- Certification. Well contractors must be certified under North Carolina General Statute 87, Article 7A. Installing a pump, breaking a well seal, and disinfecting are covered by Level D and above. A licensed plumbing contractor may install pumps under a limited exemption that includes continuing education on well seals and sanitation.
- Disinfection. State rules require the well to be disinfected after construction, repair, maintenance, or pump installation, using enough chlorine to reach a residual of at least 100 parts per million.
- Sampling tap. The person installing a pump must install a threadless sampling tap at the wellhead so water can be sampled correctly.
- Information plate. After a pump installation, a plate showing the install date, pump intake depth, and horsepower must be attached at the wellhead within 72 hours.
- No county permit for pump or tank work. State law says a repair permit is not required when the work involves only repairing or replacing a pump or tank.
Why well pump repair in the mountains costs what it does
Mountain wells are deeper than wells on the coast or in much of the Piedmont. A USGS water-quality study of Blue Ridge wells reported depths from about 50 to 400 feet and sometimes more than 500, and North Carolina cost guides put typical mountain wells between 150 and 400 feet. Cost guides estimate that every additional 100 feet adds roughly $500 to $1,000 to a pump pull and replacement because of the added pipe, wire, and labor.
Access adds to it. A well at the bottom of a steep slope or up a long gravel road can need extra crew time. Published guides also describe after-hours and weekend service at about one and a half to two times the normal labor rate, plus a diagnostic fee that commonly starts at $150 to $300.
Where this service is available
We route well pump repair requests in Buncombe, Henderson, and Madison counties and nearby areas:
- Well pump repair in Asheville and Buncombe County
- Well pump repair in Hendersonville and Henderson County
- Well pump repair in Marshall and Madison County
If the tank may be the culprit, see pressure tank replacement. For a bigger project, see well drilling.
How to request help
Use the form below with your ZIP code and a few words about what is happening. We send the request to one independent well contractor who serves your area, and they contact you. The contractor sets the price and does the work.
Frequently asked questions
How do I know if I need well pump repair or a new pump?
If the pump ran fine last week and then stopped, the problem is often electrical, such as a pressure switch, capacitor, or control box, and a repair is likely. If the motor has failed, the pump is over about 12 years old, or pressure has faded for months, replacement is often the better value.
How long does a well pump repair take?
Above-ground repairs such as a pressure switch, capacitor, or pressure tank can often be finished in a single visit. Pulling a submersible pump takes longer as the well gets deeper: a published North Carolina cost guide says a 100 foot well takes a couple of hours and a 400 foot mountain well can take a full day. Your contractor can give a firmer estimate after testing.
Why does my well pump keep turning on and off?
Rapid cycling usually means the pressure tank has lost its air charge or has failed, a pressure switch is worn, or there is a leak. Cycling shortens motor life, so it is worth fixing early. A contractor can check the tank air charge and switch settings.
Is it safe to reset a tripped well pump breaker?
Resetting a tripped breaker one time is reasonable. If it trips again, stop. Repeated trips can mean a failed motor, a damaged wire, or water in the electrical parts, and continuing to reset it can cause damage or injury.
Do I need a county permit for well pump repair in North Carolina?
Not for pump or tank work. North Carolina law says a repair permit is not required when the work involves only repairing or replacing a pump or tank. Other well repairs and any new well go through the county health department.