How Much Does Waterproof Basement Cost in Wilmington, Delaware?
Waterproof Basement: national installed price range, materials and labor breakdown, and local pricing by ZIP code.
Waterproof Basement in Wilmington, Delaware typically costs $12 to $14 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Waterproof Basement in Wilmington, Delaware
$12 – $14
per sq ftPrices in Wilmington are 4.0% higher than the national average for waterproof basement.
National average: $11 – $13 per sq ft
Cost Breakdown in Wilmington
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $4.94 – $5.87 | sq ft |
| Labor | labor | $4.40 – $5.23 | sq ft |
| Supplies & Other | supplies | $1.32 – $1.56 | sq ft |
| Equipment & Disposal | equipment | $0.87 – $1.05 | sq ft |
Prices adjusted for Wilmington local market conditions.
Cost Factors in Wilmington, Delaware
What Affects Pricing
- Materials ($5.09-$6.05 per square foot)
- Labor ($3.96-$4.71 per square foot)
- Supplies & Other ($11.31-$13.45 per square foot)
- Equipment & Disposal ($11.31-$13.45 per square foot)
Local Price Adjustments
Material costs3.0% below avg
Labor costs11.0% above avg
Labor costs in Wilmington run proportionally higher than materials, which may favor material-heavy solutions.
Frequently Asked Questions
References
- Cost to waterproof basement, Homewyse, retrieved Sep 2026
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
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