Water Damage Repair Cost Calculator
Estimate water damage restoration costs based on damage class, affected area, and whether mold remediation is needed.
Project Details
IICRC classification determines restoration approach
Contaminated water requires additional sanitization
Estimated Cost
Low
$1,980
Average
$3,360
High
$5,160
Cost Breakdown
Materials
| Item | Qty | Low | Mid | High |
|---|---|---|---|---|
| Drywall & Insulation Replacement | 90 sq ft | $270 | $540 | $900 |
| Paint & Primer | 150 sq ft | $150 | $300 | $600 |
| Subtotal | $420 | $840 | $1,500 |
Labor & Fees
| Item | Qty | Low | Mid | High |
|---|---|---|---|---|
| Water Extraction & Drying | 300 sq ft | $1,200 | $1,800 | $2,400 |
| Drywall Repair Labor | 90 sq ft | $360 | $720 | $1,260 |
| Subtotal | $1,560 | $2,520 | $3,660 |
Notes
- • Class 2 damage affecting 300 sq ft with clean water.
- • Emergency response within 24-48 hours significantly reduces total restoration cost.
About the Water Damage Calculator
Water damage restoration involves water extraction, structural drying, sanitization, and repairing damaged materials. Costs vary dramatically based on the damage class (severity), water source contamination level, area affected, and whether mold has developed. Acting within 24–48 hours limits secondary damage and mold growth, which keeps total restoration costs down.
How We Calculate Water Damage Cost
We estimate costs using IICRC damage classification standards. Each class has a per-square-foot rate for extraction and drying, adjusted by water contamination type (clean, gray, or black water). Material replacement costs are estimated based on the percentage of affected area likely needing replacement at each damage class. Mold remediation is calculated separately.
Factors That Affect Water Damage Cost
Major cost factors include: damage class and severity, water source (clean pipe vs. sewage), area affected, mold presence and extent, materials damaged (drywall vs. hardwood vs. concrete), response time (faster = cheaper), and local labor rates.
Water Damage by Affected Area
| Affected Area | Low | Average | High |
|---|---|---|---|
| 150 sq ft | $990 | $1,680 | $2,580 |
| 230 sq ft | $1,518 | $2,576 | $3,956 |
| 300 sq ft | $1,980 | $3,360 | $5,160 |
| 450 sq ft | $2,970 | $5,040 | $7,740 |
| 600 sq ft | $3,960 | $6,720 | $10,320 |
| 900 sq ft | $5,940 | $10,080 | $15,480 |
National average at typical settings — use the calculator above for your exact inputs and location.
Planning a larger project? You may also want to estimate costs for water heater replacement cost, house repiping cost, crawl space encapsulation cost, or foundation repair cost.
Sources
- • IICRC S500 Standard for Water Damage Restoration
- • HomeAdvisor — 2025 Water Damage Cost Guide
- • Fixr.com — Cost to Repair Water Damage
Costs are based on current industry ranges and vary by location and market conditions. See how we calculate costs — cost data last reviewed June 2026.
Frequently Asked Questions
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