Cost guide

How Much Does Flood Restoration Cost?

Flood restoration costs about $7 to $7.50 per square foot on average, with a typical job running $3,000 to $8,000 and severe flooding exceeding $10,000 to $30,000. Because floodwater is almost always contaminated (Category 3), most materials must be removed and rebuilt rather than dried — which makes flooding the most expensive water event to restore.

By Marcus Vidal, Restoration Cost Analyst · Reviewed by Dana Whitfield · Last reviewed July 2026

The numbers

Flood Restoration Cost — 2026 prices

Flood cleanup is priced by affected area, how contaminated the water is, and how much structure must be rebuilt. Here is what 2026 jobs typically run.

Flood restoration job	Typical cost
Water extraction & drying Standing water removed, structure dried	$1,500 – $5,000
Clean-water flood (Category 1) Per sq ft, minimal contamination	$3.75 – $7.50 / sq ft
Contaminated flood (Category 3) Sewage / floodwater, per sq ft	$7 – $15 / sq ft
Typical whole-incident job Extraction, drying, sanitation	$3,000 – $8,000
Severe flood + reconstruction Material removal and rebuild	$10,000 – $30,000+

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Affected area

400 sq ft ≈ one large room

Estimate the footprint of the rooms touched by water — not your whole home.

Water category

Clean water from a supply line is cheapest to restore; sewage or floodwater costs the most.

How long has water been present?

Add-ons (optional)

Mold remediation +$1,200–$3,800 Reconstruction / rebuild +$2,000–$9,000 Contents & odor treatment +$500–$2,500

Estimated project cost

$1,400–$3,000

Moderate — single room

Effective rate $3.50–$7.50 / sq ft Water class Category 1 · Clean

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Estimate only, based on 2026 U.S. averages. Actual pricing depends on materials, access, region, and the restoration company. Not a quote or insurance determination.

Why floodwater costs more to restore

External floodwater is treated as Category 3 (black water) — it may carry sewage, chemicals, and debris. That means porous materials such as drywall, insulation, carpet, and cabinetry generally have to be removed and disposed of, then rebuilt, rather than dried in place. Sanitation and disposal add cost that a clean-water leak never incurs.

Depth and duration compound it. The higher the water rose and the longer it sat, the more framing, flooring, and mechanical systems are affected — and the greater the mold risk if drying is delayed.

What to do — and who to call

Treat all floodwater as contaminated: avoid contact, do not run HVAC that may circulate contaminants, and document everything for your claim before removing anything. Then get an IICRC-certified restoration company on site for emergency extraction — speed is the single biggest lever on both cost and mold.

Flood restoration is not a DIY job once water is contaminated or has reached structure. Professionals handle extraction, antimicrobial treatment, structural drying with commercial equipment, and moisture verification.

Why the price swings

The three categories of water damage

The water’s contamination level is the biggest cost driver — it decides how much must be removed and sanitized versus simply dried.

Category 1

Clean water

≈ $3.50–$7.50 / sq ft

From a broken supply line, overflowing sink, or rainwater. Sanitary at the source and the cheapest to restore — most cost is drying and moisture control.

Category 2

Grey water

≈ $4.50–$9.50 / sq ft

From dishwashers, washing machines, or sump overflow. Contains contaminants, so more porous materials must be removed rather than dried in place.

Category 3

Black water

≈ $7–$15 / sq ft

Sewage backups and floodwater. Hazardous — requires full extraction, disinfection, and disposal of affected materials. The most expensive to restore.

Act fast

What to do in the first 24 hours

The faster water is removed, the lower your total cost and mold risk.

Stop the source

Shut off the supply valve or main water line. If water is coming from outside, move belongings up.

Cut the power

If standing water is near outlets or appliances, switch off electricity to that area at the breaker first.

Document it

Photograph and video everything before moving items. This protects your insurance claim.

Call a certified pro

Reach an IICRC-certified restoration company for emergency extraction. Speed lowers cost.

Will insurance cover it?

Sudden, accidental damage — like a burst pipe — is often covered by a standard homeowners policy. Damage from external flooding or slow, long-term leaks is usually excluded unless you carry separate flood insurance or a water-backup endorsement (roughly $50–$250 per year). Coverage varies by policy, so confirm your specific terms before assuming.