Basic
$0.89 – $2.02 per sq ft
Unfaced R-21 high-density fiberglass batts friction-fit in 2x6 walls, vapor retarder where code requires
How Much Does R21 Insulation Cost in Charleston, West Virginia?
Supply and install R-21 high-density fiberglass batt insulation in 2x6 exterior wall cavities.
R21 Insulation in Charleston, West Virginia typically costs $1.04 to $2.37 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
R21 Insulation in Charleston, West Virginia
$1.04 – $2.37
per sq ftPrices in Charleston are 5.0% lower than the national average for r21 insulation.
National average: $1.10 – $2.50 per sq ft
What you get at each price level
Standard
$1.04 – $2.37 per sq ft
Kraft-faced R-21 high-density batts stapled to studs, split around wiring and cut tight around boxes and pipes
Premium
$1.31 – $2.97 per sq ft
Formaldehyde-free R-21 high-density batts fitted tight without gaps, split around wiring, cut tight at boxes and pipes, window gaps filled
Cost Breakdown in Charleston
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.48 – $1.08 | sq ft |
| Labor | labor | $0.35 – $0.82 | sq ft |
| Supplies & Other | supplies | $0.12 – $0.29 | sq ft |
| Equipment & Disposal | equipment | $0.09 – $0.19 | sq ft |
Prices adjusted for Charleston local market conditions.
Cost Factors in Charleston, West Virginia
What Affects Pricing
- Materials ($0.50-$1.12 per square foot)
- Labor ($0.38-$0.88 per square foot)
- Supplies & Other ($0.13-$0.30 per square foot)
- Equipment & Disposal ($0.09-$0.20 per square foot)
Local Price Adjustments
Material costs4.0% below avg
Labor costs7.0% below avg
Frequently Asked Questions
References
- Insulation Installation Cost Per Sq Ft (2026), EZ-Estimates, ez-estimates.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 Charleston
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