Typical ranges
| Service | Typical range | What moves the price |
|---|---|---|
| Basement waterproofing | $2,000 to $10,000+ | Window well and crack fixes are at the low end; full interior drain systems at the high end. |
| Foundation crack repair | $300 to $1,100 per crack | Injection at the low end; reinforcing a moving wall costs considerably more. |
| Interior drain tile | $3,000 to $11,000+ | Mainly depends on feet of wall and whether the basement is finished. |
| Sump pump installation and replacement | $650 to $2,500 | A like-for-like swap is at the low end; new basins, lines and backups add cost. |
| Window well drainage and leaks | $300 to $2,500 per well | Covers and cleanouts are at the low end; adding a drain or rebuilding a well costs more. |
Rough ranges for planning only, based on typical published national and regional pricing. Your actual price comes from the contractor after an inspection.
What shapes the price
- Where the water comes in. A single window well or crack costs far less than water along every wall.
- Feet of drain tile. Interior systems are priced mostly by the foot.
- Inside vs. outside. Exterior excavation usually costs considerably more than interior work.
- Finished basements. Removing and replacing drywall and flooring adds cost.
- Structural work. Stabilizing a moving wall is a bigger job than sealing a crack.
Comparing quotes
Check what each quote includes: feet of tile, pump model, backup, window well work, finish removal and the warranty. Our guide on what a warranty should cover helps you compare the fine print.
Questions
Why do quotes vary so much here?
Contractors may be solving different problems: one may quote window well drains and crack injection, another a full drain tile system. Ask each to show you where the water enters.
Is exterior waterproofing worth the extra cost?
Sometimes, for one accessible wall or where structural work is needed outside anyway. For most leaks, interior systems cost less.
Will insurance cover it?
Waterproofing is usually treated as maintenance. Some policies cover sudden water damage or sump backup; ask your agent.
Ready for a firm number? Get a free estimate, or read about window well repair and crack repair.