When there's water under your house, one of the first questions is what it will cost. The honest answer is that it depends on how much water there is, how dirty it is, how long it sat, and what has to be removed. Here are typical national figures from published 2026 cost guides to give you a starting point.
Typical water damage restoration costs
| Item | Typical cost |
|---|---|
| National average, water damage restoration | about $3,250 |
| Typical range | $1,270 – $5,375 |
| Per square foot (typical) | about $3.15 – $7.50 |
| Clean water (Category 1), e.g. a burst supply line | $3.30 – $4.10 / sq ft |
| Gray water (Category 2), e.g. appliance or sump overflow | $4.10 – $7.00 / sq ft |
| Black water (Category 3), e.g. sewage or outside floodwater | $7.00 – $7.50+ / sq ft |
Source: LawnStarter, "How Much Does Water Damage Restoration Cost in 2026?"
Related crawl space costs
| Service | Typical cost |
|---|---|
| Water removal and drying (cleanup) | $400 – $5,000 |
| Mold remediation | $1,000 – $3,500 |
| Crawl space dehumidifier installation | $1,000 – $4,000 |
| Full crawl space cleaning | $2,000 – $6,000 |
| Crawl space encapsulation (average) | about $5,500 |
Source: HomeAdvisor crawl space cleaning cost guide.
Want a real number for your home? Call to talk with a local restoration company.
Call: (317) 426-0557What drives the price
- How much water, and how far it spread. A small puddle under one corner costs far less than a crawl space with inches of water throughout.
- Water category. Clean water from a supply line is the least expensive. Sewage and outside floodwater cost the most because of disinfection and safety requirements.
- How long it sat. The longer water stays, the more insulation, vapor barrier and wood is affected, and the higher the risk of mold.
- Access. Low clearance, tight access doors and obstructions make crawl space work slower.
- What needs replacing. Wet insulation and torn vapor barrier usually come out. Rotted framing or ductwork adds cost.
- Mold. If mold has already started, remediation is often a separate line item.
Paying for it: insurance basics
Whether insurance helps depends on the cause:
- Often covered: sudden, accidental damage, such as a pipe that bursts.
- Commonly excluded: flooding from outside water (which needs separate flood insurance), gradual seepage, and long-term leaks.
- Often requires an add-on: water that backs up from a sump pump or drain.
Call your insurer before major work starts, take photos, and keep every receipt and moisture report. Restoration companies often work directly with insurance adjusters and can provide the documentation they ask for.
How to get an accurate estimate
- Ask for an on-site inspection with moisture readings.
- Ask what's included: extraction, drying equipment and how many days, material removal, antimicrobial treatment, and final moisture checks.
- Ask whether they'll provide documentation for your insurance claim.
- Get the estimate in writing before work begins, except for emergency extraction that can't wait.
Frequently asked questions
What is the average cost of water damage restoration?
LawnStarter's 2026 cost guide puts the national average at about $3,250, with most jobs falling between roughly $1,270 and $5,375. Costs in the Indianapolis area depend on the job, so get an on-site estimate.
Why does dirty water cost more to clean up?
Water from sewer backups or outside flooding (gray or black water) can contain bacteria, so it requires protective equipment, disinfection and often removal of more materials. That raises the cost per square foot.
Will insurance pay for crawl space water damage?
It depends on what caused it. Sudden, accidental damage such as a burst pipe is often covered. Flooding from outside water, gradual seepage and sump pump backup are commonly excluded unless you have the right coverage or endorsement.
Are estimates free?
Many restoration companies offer free inspections or estimates, but policies vary. Ask when you call.