National 2026 cost ranges, what drives the price, and the questions to ask before you hire.
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Last updated: October 2026 · Cost figures are national reference ranges from published industry sources, not quotes.
Basements are where water damage concentrates: they're below grade, often finished, and full of porous materials. A 500 sq ft basement runs roughly $1,750 for clean-water extraction and drying (Angi, via PushLeads 2026) — but gray or black water pushes the same space to $2,750–$10,000+. The water source decides the category, and the category decides the price.
| Scope | Typical range | Notes |
|---|---|---|
| Clean water, 500 sq ft basement | ~$1,750 | Extraction and drying (Angi, via PushLeads 2026). |
| Gray water, 500 sq ft basement | ~$2,750 | Adds antimicrobial treatment and some material removal. |
| Black water basement | $3,000–$10,000+ | Full disposal and sanitization (HomeGuide 2026). |
| Sump pump install (prevention) | typically $800–$1,500 | With battery backup strongly recommended — most basement floods happen during power outages. |
The usual suspects: grading that slopes toward the foundation, clogged or undersized gutters and downspouts, a failed or missing sump pump, and hydrostatic pressure pushing groundwater through foundation cracks. A restoration pro dries it; a basement waterproofing contractor fixes the cause.
It depends on the source. Sump-pump failure with a sump endorsement: often yes. Groundwater seepage: usually no. Overland flooding: only with separate flood insurance. The source of the water is the whole ballgame for coverage.
Extraction first, then commercial dehumidifiers and air movers — typically 3–5 days of monitored drying (PuroClean 2026). Pull baseboards so wall cavities can dry; carpet pad almost always has to go.
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