Most homeowners pay $2,000–$7,000 to dry out, clean and repair a flooded basement, with an average of about $4,000, or roughly $3–$7 per sq. ft. Clean-water leaks can cost $1,500–$3,500, while sewage or floodwater jobs run $7,000–$15,000 (Angi and HomeGuide data, as of October 2026).
Updated October 8, 2026. Source: Angi + 2 more. National US estimates.
Basements flood from burst pipes, failed water heaters, sump pump failures, sewer backups and groundwater after heavy rain. Because water sinks to the lowest level and stays there, basement jobs often involve standing water, soaked carpet and drywall, and a higher risk of mold than leaks upstairs.
This guide covers what restoration companies charge by water type and basement size, what each repair costs, and how to keep the bill and the next flood in check. To run your own numbers, try our water damage repair cost calculator.
Average cost
Typical basement water damage totals from national cost guides, as of October 2026:
| Scenario | Typical range | Notes |
|---|---|---|
| Minor: about an inch of clean water caught quickly | $500–$1,500 | Extraction and drying, little or no tear-out |
| Typical flooded basement, clean or gray water | $2,000–$7,000 | Pump-out, drying, some drywall and flooring replaced; average about $4,000 |
| Sewage backup or floodwater (black water) | $7,000–$15,000 | Porous materials removed, disinfection, more rebuild |
| Large finished basement, severe damage | $10,000–$20,000+ | Long-standing water, structural or extensive rebuild |
Flooded basement cleanup cost by water type
| Water category | Typical source | Typical cost |
|---|---|---|
| Category 1, clean water | Broken supply pipe, rainwater | $1,500–$3,500 |
| Category 2, gray water | Washing machine, dishwasher, sink or shower | $3,000–$7,000 |
| Category 3, black water | Sewage backup, floodwater | $7,000–$15,000 |
Basement water damage repair costs by item
Common line items on a basement restoration bill:
| Item | Typical cost |
|---|---|
| Assessment and moisture inspection | $100–$500 |
| Emergency water extraction or pump-out | $300–$2,000 |
| Dehumidifier | $100–$300 per week |
| Air mover | $50–$150 per week |
| Drywall tear-out and reinstall | $500–$2,500 per room |
| Flooring removal and replacement | $1,000–$5,000 |
| Insulation | $400–$1,200 |
| Baseboards | $200–$800 |
| Cabinets or built-ins, remove and reinstall | $800–$3,500 |
| Odor removal and sanitation | $200–$800 |
| Mold remediation | $500–$6,000 |
Cost breakdown: materials, labor, permits and extras
Line-item estimate for restoring a 1,000 sq. ft. partly finished basement after a few inches of clean water from a burst pipe, with one carpeted room torn out. Ranges are national, as of October 8, 2026.
| Cost item | Typical range | What it covers |
|---|---|---|
| Assessment and moisture mapping | $100–$500 | Inspection with moisture meters |
| Water extraction | $300–$2,000 | Pump-out and wet vacuuming |
| Drying equipment, about 3–5 days | $250–$750 | Dehumidifier and air movers |
| Drywall tear-out and reinstall (one room) | $500–$2,500 | Lower wall sections cut out, dried, replaced and painted |
| Carpet and pad replacement (about 300 sq. ft.) | $600–$2,400 | $2–$8 per sq. ft. installed |
| Contingency (about 10%) | $200–$700 | Wet insulation or baseboards found during tear-out |
| Estimated total | $1,950–$8,800 | Before any discounts or rebates |
Mitigation (extraction and drying) and rebuild are often separate bills; ask whether one company handles both.
What affects the price
- Depth and duration of the flooding. About an inch of clean water from a burst pipe costs roughly $500–$1,500 to clean up, according to Angi, while water that sat for days soaks walls and floors. HomeGuide's damage classes run from $1,000–$3,000 for minor wetting to $10,000–$20,000+ for saturated materials.
- Water type. Clean water costs about $1,500–$3,500 for a basement, gray water $3,000–$7,000, and black water from sewage or flooding $7,000–$15,000, because porous materials have to be thrown out and everything disinfected.
- Materials affected (carpet, drywall, flooring). Drywall tear-out and reinstall runs about $500–$2,500 per room, flooring $1,000–$5,000, insulation $400–$1,200 and cabinetry $800–$3,500. An unfinished basement with a bare concrete floor costs far less to restore.
- Drying equipment. Pros usually run dehumidifiers ($100–$300 per week each) and air movers ($50–$150 per week each) for several days. A large or deeply soaked basement needs more units for longer.
- Risk of mold. The longer materials stay damp, the more likely mold becomes. Remediation adds about $500–$6,000 to a basement job; see our mold remediation cost guide for details.
- Finishing work. Rebuild costs depend on what was there: HomeGuide lists drywall at $2–$6 per sq. ft., carpet at $2–$8 per sq. ft. and hardwood at $9–$25 per sq. ft., so a finished basement with wood floors costs far more to restore than a basic rec room.
Ways to save
- Act fast. Stop the water, call for extraction and start drying the same day; shorter drying times mean less tear-out and a lower mold risk.
- Call your insurer before work starts if the cause is sudden, like a burst pipe. Standard policies usually exclude groundwater flooding, which needs flood insurance, and sewer backup is often a separate endorsement.
- Separate mitigation from rebuild quotes. You can hire a restoration company to dry the space and get competing bids from contractors for drywall and flooring.
- Photograph everything and keep damaged materials until the adjuster sees them; it supports your claim.
- Fix the cause so you don't pay twice: replace an aging sump pump ($600–$2,500 installed) or address leaks with our basement waterproofing cost guide as a starting point.
- Use moisture-tolerant finishes when you rebuild, such as tile or vinyl plank instead of carpet, to cut the cost of the next incident.
How to get an accurate quote
Ask at least three IICRC-certified or licensed restoration companies for written estimates; for emergencies, get one company drying immediately and compare rebuild quotes afterward. Give each the same information:
- The source of the water (pipe, appliance, sump pump, sewer, groundwater) and how long it has been there.
- The basement size, how much of it is finished, and what got wet: carpet, drywall, insulation, cabinets, furnace or water heater.
- Your insurance details and whether an adjuster has already inspected.
- Ask for itemized pricing for extraction, drying days and equipment, tear-out, disinfection, mold work and rebuild, plus who handles insurance paperwork.
FAQ
Does homeowners insurance cover basement water damage?
It usually covers sudden, accidental damage such as a burst pipe or appliance failure. Groundwater and surface flooding require separate flood insurance, and sewer or sump pump backup is typically covered only with an add-on endorsement.
How long does it take to dry out a flooded basement?
Professional drying usually takes at least three days with dehumidifiers and air movers, and longer for saturated materials or concrete. Rebuild work starts only after moisture readings return to normal.
Can I clean up a flooded basement myself?
For small clean-water leaks, yes. Angi estimates DIY cleanup at about $500–$2,500 including equipment rental and disposal. Sewage, floodwater and anything with electrical hazards should be handled by professionals.
For the big picture, start with our complete crawl space encapsulation cost guide.
Related cost guides
Sources
- Angi — How Much Does Flooded Basement Cleanup Cost? [2026 Data] (updated May 30, 2026). Checked October 8, 2026.
- Angi — How Much Does Water Damage Restoration Cost? [2026 Data] (updated Sep 11, 2026). Checked October 8, 2026.
- HomeGuide — How Much Does Basement Flooding Repair Cost? (2026) (Feb 6, 2026). Checked October 8, 2026.
Prices are estimates and vary by location and provider. See our methodology and editorial policy. Browse all foundation & water cost guides.