How much to replace a pressure switch on a well?

Author: Chadd Macejkovic IV  |  Last update: Monday, May 26, 2025

The average cost of replacing a well pump is about $975 to $2,750. A well pump pressure switch costs $20 to $50, and labor can cost between $45 and $200 an hour.

How much does a plumber charge to replace a pressure switch on a well?

The price of a well pressure switch itself typically ranges from $20 to $40. When labor is factored in, the total cost of replacing a well pressure switch averages between $120 and $175.

Is it hard to replace a well pressure switch?

It is not difficult to change out. You just need to take a picture of the wiring, turn off power, switch out, and reinstall.

What is the life expectancy of a well pressure switch?

Generally, a well-maintained pressure switch can last several years, with some lasting over a decade. Regular maintenance and proper installation are critical to extending the lifespan of a pressure switch.

What are the symptoms of a bad pressure switch on a well?

Common symptoms of a failing well pressure switch include the following:
  • Water pressure inside the home above the pressure switch's cut-off point.
  • Low water pressure inside the home.
  • Pump turns on and off repeatedly.
  • Pump does not turn on at all.
  • Pressure tank is waterlogged.
  • No water flow at all inside the home.

how to replace a pressure switch on a well system

How often should you replace a well pressure switch?

The pressure switch can last for several years, but sometimes it can fail much sooner than you expect. To avoid being left without a functioning well, some homeowners simply have the switch replaced every year. Your well pump contractor can make this replacement when they come out for their yearly maintenance visit.

Can you run a well pump without a pressure switch?

Operating a well pump without a pressure tank is highly discouraged due to the numerous problems and potential damages it can cause to the system. These problems include short cycling, water hammer, inconsistent water pressure, reduced pump lifespan, and system damage.

What causes a pressure switch to go bad?

Dirty or water-filled hoses: Sometimes, pressure switch hoses become clogged with dirt, debris, and water. Damaged diaphragms: When working correctly, the pressure switch diaphragm handles a switch's air supply. However, diaphragms can crack or suffer perforations, causing the entire switch to fail.

How much does it cost to replace a well pressure tank?

Diaphragm Well Pressure Tank

This membrane is welded shut, preventing any air from escaping. Most individuals pay around $200 to $500 for a new diaphragm well pressure tank, but the cost can be upward of $2,500 for large well pressure tank sizes (such as 120 gallons) and if you switch out vinyl materials for all metal.

Do you have to drain the pressure tank to change the pressure switch?

Swap the switch

Close the valve from the pressure tank to the house. Then drain the pressure tank. Next, remove the old switch and nipple. Replace them with new parts.

Will a bad pressure switch trip the breaker?

So, can a faulty pressure switch lead to a tripped breaker? The answer is yes.

How much is a new well pump?

The average cost to replace a well pump is $1,889, but most spend between $974 to $2,813 depending on the pump size you need.

Why is my well pump running but not filling the pressure tank?

Your Pressure Switch Has Malfunctioned

One of the most common reasons why the pump might be running, but you don't have any water going to your house, is that there is a malfunction with the pressure switch itself. If you take a look at the pressure tank, you will see a pressure switch at the bottom.

How to tell if a well is dry or pump bad?

Is Your Water Well Going Dry? Here Are Some Common Warning Signs
  1. Change in Taste of Water. ...
  2. Well Water Appears Muddy. ...
  3. Water Pumps Running for Longer Periods. ...
  4. Faltering of Faucets Leading to Leakage. ...
  5. Change in Water Quality. ...
  6. Bubbles of the Dissolved Gases Appear in Well. ...
  7. Huge Increase in Power/Electricity Bill.

How much does a plumber charge to replace a pressure relief valve?

The required type of PRVs can cost anywhere from $90-$200 and can be purchased at a big box store. A plumber will charge anywhere from $200-$800 for materials and labor but a homeowner with a moderate level of maintenance knowledge might be able to switch out their PRV.

How much does it cost to replace a well pressure switch?

Pressure Switch Failure

Failed well pump pressure switch replacement costs $120 to $180. These switches often corrode, becoming pitted and burned. Insects, including wasps, can even build nests here and cause the system to short. This is one of the most common well pump issues, but it's affordable to repair.

What is the life expectancy of a well pressure tank?

Lifespan of a Well Pressure Tank

A well-maintained pressure tank typically lasts around 15 years. However, this can vary based on the quality of the tank, water quality in your area, and maintenance practices. Regular inspections and addressing any issues promptly can significantly extend the life of your tank.

Can I replace my own well pressure tank?

Chances are it's time to replace your water well pressure tank. While this may sound like a job for a professional plumber, this is also something you can do yourself at home if you're handy with DIY plumbing.

What happens if a well pressure switch fails?

It can cause a loss of water pressure or even cut off your water supply altogether.

How do you know if you need a new pressure switch?

Check the pressure gauge on your plumbing system. If it reads below 40 PSI, the pump should be actively working to change that. If the pump isn't turning on despite a severely low reading, the pressure switch may be at fault.

How to check a pressure switch on a well?

Steps for Well Pump Pressure Tank Switch Troubleshooting

Remove the metal or plastic cover from the pressure switch. You may need a screwdriver to remove a couple of screws first. Check and clean the switch relay contacts. Examine the four contacts for burning or pitting on the surface.

Is it OK to turn power off to well pump?

By shutting off the breaker, there should be no harm to the well pump system, provided the pump system is in good mechanical working order. However, you should also shut off the power to the hot water heater. In rare cases, a broken water line can siphon water out of the hot water heater, causing damage to the unit.

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