Basic
$1.33 – $3.11 per sq ft
Loose-fill fiberglass blown over the attic floor to an R-30 settled depth, eave baffles and depth markers set
How Much Does R30 Insulation Cost in Washington, District of Columbia?
R30 Insulation: national installed price range, materials and labor breakdown, and local pricing by ZIP code.
R30 Insulation in Washington, District of Columbia typically costs $1.57 to $3.66 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
R30 Insulation in Washington, District of Columbia
$1.57 – $3.66
per sq ftPrices in Washington are 5.0% higher than the national average for r30 insulation.
National average: $1.50 – $3.50 per sq ft
What you get at each price level
Standard
$1.57 – $3.66 per sq ft
Blown fiberglass to R-30 with eave baffles, depth markers, a dam around the attic hatch, and recessed lights and flues kept clear
Premium
$1.96 – $4.58 per sq ft
Blown fiberglass to R-30 with rafter baffles, depth markers, hatch dam with weatherstripped insulated cover, recessed lights and flues kept clear
Cost Breakdown in Washington
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.71 – $1.65 | sq ft |
| Labor | labor | $0.54 – $1.28 | sq ft |
| Supplies & Other | supplies | $0.19 – $0.44 | sq ft |
| Equipment & Disposal | equipment | $0.13 – $0.29 | sq ft |
Prices adjusted for Washington local market conditions.
Cost Factors in Washington, District of Columbia
What Affects Pricing
- Materials ($0.68-$1.57 per square foot)
- Labor ($0.52-$1.23 per square foot)
- Supplies & Other ($0.18-$0.42 per square foot)
- Equipment & Disposal ($0.12-$0.28 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 R30 Insulation, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked 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 r30 insulation contractors in Washington for personalized quotes based on your specific project.