How long do sump pumps last?
Most sump pumps last 7 to 12 years. Sump pumps are commonly given about 7 to 12 years; pumps that run often wear sooner.
A sump pump sits idle until the day it matters most. Testing it before the wet season, and having a backup, is what keeps a basement dry.
Typical lifespan: 7 to 12 years
Sump pumps are commonly given about 7 to 12 years; pumps that run often wear sooner.
Sump pump maintenance checklist by season
Spring
Test the pump before the wet season: pour water into the pit until the float lifts and the pump starts, then check that it drains outdoors and shuts off. Clean the inlet screen and the pit.
Summer
Check the discharge line outside for clogs, kinks or ice remnants, and make sure it carries water well away from the foundation.
Fall
Test the battery backup if you have one. Check the battery date; many makers say to replace a backup battery every few years, so follow the manual.
Winter
Make sure the discharge pipe is not frozen or blocked by snow. Listen for the pump cycling during thaws.
Signs your sump pump needs replacing
- The pump runs constantly or cycles very often.
- It does not start when the pit fills, or it makes a grinding noise.
- The float sticks or the check valve does not hold.
- Water stands in the pit or the basement after rain.
- The pump is about 10 years old and has no battery backup.
Typical sump pump warranty
Warranties are commonly one to three years, and some premium or cast-iron models have longer terms. Battery backups often carry their own shorter warranty. Terms vary.
An appliance warranty tracker keeps your sump pump's coverage dates and receipt in one place.
What to keep for a sump pump
- The receipt and plumber invoice
- Model number and horsepower from the label on the motor
- The date you installed or last replaced the pump and battery
- Discharge line notes
Common questions
How long do sump pumps last?
Most sump pumps last 7 to 12 years. Sump pumps are commonly given about 7 to 12 years; pumps that run often wear sooner.
How do I test a sump pump?
Pour a few gallons of water into the pit so the float rises, and confirm the pump starts, empties the pit and shuts off. Do it before wet seasons.
Do I need a battery backup for a sump pump?
Storms that flood basements often cut power, so a backup is a reasonable precaution if your basement has flooded before or sits below the water table. Check with a plumber.
How do I maintain a sump pump?
Follow your manual first. Each season: spring, test the pump before the wet season: pour water into the pit until the float lifts and the pump starts, then check that it drains outdoors and shuts off. Clean the inlet screen and the pit. Fall, test the battery backup if you have one. Check the battery date; many makers say to replace a backup battery every few years, so follow the manual.