When to replace
When to replace your sump pump
Most sump pumps last 7–10 years. Because a failure means a flooded basement, proactive replacement near end of life is worth it.
- Typical lifespan
- 7–10 years
- Replacement cost
- $200–$600
Signs it's time to replace
- The pump runs constantly or short-cycles
- Strange noises or visible rust
- It's more than 7 years old
- It failed to start during your last test
- Frequent clogging or vibration
Extend its life
Testing the pump each season and keeping the pit clear extend its life and confirm it'll run when a storm hits.
Repair or replace?
When a sump pump is aging, the question is whether to keep repairing it or replace it. A useful rule of thumb is the 50% rule: if a repair costs more than half the price of a new unit and the sump pump is past the midpoint of its 7–10 year lifespan, replacement usually wins. Frequent repairs and efficiency gains push the same direction.
For the full decision framework, see our guide on whether to repair or replace major home systems.
When to replace sump pump: FAQ
How long does sump pump last?+
Most sump pumps last 7–10 years. Because a failure means a flooded basement, proactive replacement near end of life is worth it.
What are the signs I need to replace my sump pump?+
Common signs include: the pump runs constantly or short-cycles; strange noises or visible rust; it's more than 7 years old; it failed to start during your last test.
Can I extend the life of my sump pump?+
Testing the pump each season and keeping the pit clear extend its life and confirm it'll run when a storm hits.
Should I repair or replace my sump pump?+
A common guideline is the 50% rule: if a repair costs more than half the price of a new unit and the sump pump is past the midpoint of its expected life, replacement usually makes more sense. See our full repair-or-replace framework for the details.