Basic
$17 – $23 per sq ft
S2-grade natural slate in a uniform gray, 3 in. headlap, copper nails, felt underlayment, heavy painted-steel flashing
Photo: Dominic's pics · CC BY 2.0 · Source
How Much Does Install Slate Roof Cost in Washington, District of Columbia?
Install Slate Roof: national installed price range, materials and labor breakdown, and local pricing by ZIP code.
Install Slate Roof in Washington, District of Columbia typically costs $20 to $28 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Install Slate Roof in Washington, District of Columbia
$20 – $28
per sq ftPrices in Washington are 5.0% higher than the national average for install slate roof.
National average: $19 – $26 per sq ft
What you get at each price level
Standard
$20 – $28 per sq ft
Unfading S1-grade natural slate in a chosen color, 3 in. headlap, copper nails, synthetic underlayment, copper flashing
Premium
$25 – $35 per sq ft
Unfading S1-grade natural slate in a blended color mix, copper nails, high-temp underlayment, copper flashing
Cost Breakdown in Washington
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $9.10 – $12 | sq ft |
| Labor | labor | $7.01 – $9.60 | sq ft |
| Supplies & Other | supplies | $2.43 – $3.33 | sq ft |
| Equipment & Disposal | equipment | $1.62 – $2.22 | sq ft |
Prices adjusted for Washington local market conditions.
Install Slate Roof photo examples
Stack of slate roof tiles seen edge-on
Photo: Dominic's pics · CC BY 2.0 · Source
Find a pro to do this
Cost Factors in Washington, District of Columbia
What Affects Pricing
- Materials ($8.67-$11.87 per square foot)
- Labor ($6.74-$9.23 per square foot)
- Supplies & Other ($19.26-$26.38 per square foot)
- Equipment & Disposal ($19.26-$26.38 per square foot)
Local Price Adjustments
Material costs5.0% above avg
Labor costs4.0% above avg
Frequently Asked Questions
How we price this
BuildX Pro researches and reviews the national price range for Install Slate Roof, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked 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
Get Free Estimates in Washington
Connect with local install slate roof contractors in Washington for personalized quotes based on your specific project.