Typical ranges
| Service | Typical range | What moves the price |
|---|---|---|
| Basement waterproofing | $2,000 to $11,000+ | Pump and crack fixes are at the low end; a full interior drain system is at the high end. |
| Sump pump installation and backup | $600 to $2,800 | A replacement pump is at the low end; adding a backup system or a second pump costs more. |
| Interior drain tile | $3,000 to $11,000+ | Mostly priced by the foot of wall; finished basements cost more to open and close. |
| Foundation crack repair | $300 to $1,000 per crack | Simple injection is at the low end; bracing a bowing wall costs far more. |
| Basement dehumidifiers and moisture control | $1,500 to $3,500 | Depends on the unit's capacity, drainage setup and any ducting. |
Rough ranges for planning only, based on typical published national and regional pricing. Your actual price comes from the contractor after an inspection.
What drives the price
- How hard your pump works. High water table homes may need a bigger pump, a second pump or a heavy-duty backup.
- Feet of drain tile. Interior drain tile is priced mostly by the foot.
- Finished space. Drywall, flooring and built-ins add removal and repair cost.
- Structural repairs. Bracing a bowing block wall costs more than sealing a crack.
- Moisture control. A whole-basement dehumidifier is a separate line item from leak repair.
Comparing quotes
Line up what each quote includes: pump model and capacity, type of backup, feet of drain tile, what happens to finished walls and the warranty terms. Our guide to sump pump backups explains the backup options.
Questions
Why does one quote include two pumps?
In homes where water comes in fast, a second pump in the basin shares the load and takes over if the first fails. It costs more up front but protects against the most common flood cause.
Is a backup worth the money?
In high water table areas, usually yes. Power outages often come with the storms that fill your basin.
Does homeowners insurance cover this?
Waterproofing itself is usually considered maintenance. Some policies offer sump pump backup coverage for damage; ask your agent.
Want an exact number? Get a free estimate, or read about sump pumps and backups and interior drain tile.