- A new sump pit and pump usually costs $800 to $2,100 installed, about $1,400 typical.
- Swapping a pump in an existing pit is much cheaper; Bob Vila says it takes around an hour.
- Battery backups (Fixr: $150 to $2,000) keep the basement dry when storms knock out power.
- Digging through a dirt floor costs $300 to $500, Bob Vila says; concrete floors cost more.
What a new sump pump costs
| Guide | Range | Average |
|---|---|---|
| Fixr | $800 to $2,000 | $1,400 |
| HomeAdvisor | $645 to $2,120 | $1,363 |
| Bob Vila (Angi data) | $1,200 to $2,500 | $1,500 |
The calculator takes the middle of the three for a new pit and submersible pump.
Submersible or pedestal
Submersible pumps sit in the pit and are quieter and more powerful; Fixr lists them at $90 to $1,000. Pedestal pumps sit above the pit and are cheaper and easier to service; Fixr lists them at $80 to $800. HomeAdvisor says pedestal pumps cost $60 to $170 and suit spots with minor water. Bob Vila notes 1/3 horsepower pumps, the standard size, cost $90 to $250.
Backup pumps
Fixr puts battery backup systems at $150 to $2,000 and water-powered backups at $200 to $900. A backup and a high-water alarm are the cheap insurance for a finished basement.
A worked example
A new pit and pump at the US average comes to $800 to $2,100, about $1,400 typical. Add a battery backup and the typical is about $2,475. Enter a ZIP to scale the 50% labor share.
Quoting sump work
- Discharge line. Where does the water go? Long runs add cost.
- Check valve and alarm. Line items.
- Offer yearly testing. A maintenance plan keeps you in touch.
Last checked October 9, 2026. More for your trade: how trades run on Koira.