Basic
$0.89 – $2.67 per sq ft
Neutral-pH clean, one coat of water-based impregnating sealer, excess removed before it dries
How Much Does Seal Limestone Cost in Washington, District of Columbia?
Clean and apply penetrating/impregnating sealer to limestone floor or paving, per sq ft.
Seal Limestone in Washington, District of Columbia typically costs $1.05 to $3.14 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Seal Limestone in Washington, District of Columbia
$1.05 – $3.14
per sq ftPrices in Washington are 5.0% higher than the national average for seal limestone.
National average: $1 – $3 per sq ft
What you get at each price level
Standard
$1.05 – $3.14 per sq ft
Machine scrub with stone-safe cleaner, two coats of impregnating sealer for water and oil, excess buffed
Premium
$1.31 – $3.92 per sq ft
Deep machine clean, two coats of solvent-based fluoropolymer impregnator, excess buffed, absorbency tested
Cost Breakdown in Washington
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.47 – $1.42 | sq ft |
| Labor | labor | $0.36 – $1.09 | sq ft |
| Supplies & Other | supplies | $0.13 – $0.38 | sq ft |
| Equipment & Disposal | equipment | $0.08 – $0.25 | sq ft |
Prices adjusted for Washington local market conditions.
Cost Factors in Washington, District of Columbia
What Affects Pricing
- Materials ($0.45-$1.35 per square foot)
- Labor ($0.35-$1.05 per square foot)
- Supplies & Other ($0.12-$0.36 per square foot)
- Equipment & Disposal ($0.08-$0.24 per square foot)
Local Price Adjustments
Material costs5.0% above avg
Labor costs4.0% above avg
Frequently Asked Questions
References
- Rose Restoration: Limestone Restoration Cost Guide 2026, roserestoration.com, retrieved Nov 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
Get Free Estimates in Washington
Connect with local seal limestone contractors in Washington for personalized quotes based on your specific project.