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How Often Should You Replace Your Sump Pump?

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Stephens Plumbing

April 3, 2025

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Your sump pump has a big job: removing excess groundwater and preventing basement floods during heavy rain. And while most people give little thought to this critical piece of plumbing, knowing when to replace it can save you thousands in potential water damage.

From unusual noises and irregular cycling to strange smells, here are a few signs it may be time to replace your sump pump.

How Often to Replace Sump Pump: The Short Answer

Generally speaking, the average sump pump has a life expectancy of 7-10 years—sometimes longer. However, if your unit is approaching the decade mark, it’s time to consider how often to replace your sump pump. Here’s why:

  • To prevent floods: System failure can lead to basement floods, mold growth, and costly water damage.
  • Cost efficiency: Sump pumps range from $100-$500, while the average cost to restore a flooded basement ranges from $2,000-$10,000, depending on severity. When considering how much does sump pump replacement cost, remember that replacing your sump pump is far cheaper than water damage restoration.
  • Peace of mind: You can’t put a price tag on peace of mind, but as far as we’re concerned, knowing your pump is reliable during a heavy rain is priceless.

Common Signs You Need Sump Pump Replacement

Strange Noises

The only sound your sump pump should make is a low, continuous hum. If you begin to hear grinding, rattling, or any unusual sounds, it may be time for system repair or replacement.

Irregular Cycling

A healthy sump pump should turn on when water reaches a certain level and turn off when water recedes. Does your pump randomly turn on and off, or run continuously without shutting off? The float switch may be malfunctioning or the pump may require service or replacement. Consider replacing a sump pump switch as an initial repair before full system replacement.

Visible Rust or Corrosion

Sump pumps live in wet environments, making them susceptible to rust and corrosion. While newer models have fewer metal components, old sump pumps are more likely to rust. If you notice rust on the discharge pipe or pump housing, other components may also be damaged.

Excess Vibration

While minor vibration is perfectly normal, excessive shaking may indicate an imbalanced propeller or worn motor bearings. Left unattended, these issues can lead to reduced efficiency or complete system failure.

Odd Smells

Catching a whiff of something strange? Burning odors often indicate that the motor is overheating and needs to be replaced.

Sump Pump Maintenance Tips

Several factors determine how long your sump pump will last. For example, if you live in an area with a high water table, your sump pump is going to work harder and wear out faster. The same applies to homes with significant groundwater or those in regions with heavy seasonal rainfall.

However, you can reduce system strain and prevent plumbing emergencies by:

  • Removing debris from the intake, discharge pipe, and sump pump pit quarterly, or more frequently depending on need.
  • Monitoring the float to ensure it moves freely, rising when water levels spike and dropping when they fall.
  • Testing functionality during dry season by pouring a bucket of water into the sump pump pit. This simple test can help you identify minor issues early.
  • Installing a battery backup system that kicks on during power outages. Don't forget to check the replacement battery for your backup sump pump annually to ensure it's in good condition.
  • Scheduling seasonal maintenance with a plumbing professional at Stephens. We'll inspect your entire system, check for worn components, test all electrical connections, and ensure your pump is properly sized for your home's specific needs.

We Put Your Sump Pump to the Test So You Can Rest

Hearing strange noises in the basement? That might be your sump pump talking back. Don't wait until the rainy season to repair or replace your sump pump. Our expert technicians are here to help you evaluate your current system and determine if it's time for a replacement. Contact us today to schedule service!

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