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This is a diagnostic, not a diagnosis. It is built on the patterns we actually find in Lakes Region basements and it is genuinely good at separating a few-hundred-dollar problem from a five-figure one. It cannot see your house. Anything it flags for assessment should be looked at by somebody who can — and we make no structural determinations here or anywhere on this site.
Reference
The Short Version
| Where the water is | What it means | Fix class | Rough cost |
|---|---|---|---|
| Down a wall, from near the top | Surface water — roof or grading | Outside | $0–$1,000 |
| Around a basement window | Window well with no drainage | Outside | $200–$1,200 |
| Through a visible crack | Crack is the entry point | Injection ± assessment | $400–$900 per crack |
| At the floor-wall joint | Hydrostatic pressure from below | Interior drainage + sump | $5,000–$15,000 |
| Up through the slab | Water table above floor level | Interior drainage + sump | $5,000–$15,000 |
| Everywhere, but only in March | Seasonal groundwater | Drainage sized for the peak | $5,000–$15,000 |
| No water — a smell | Humidity, often a crawl space | Encapsulation / dehumidification | $4,000–$12,000 |