How Much Does R21 Insulation Cost in Charleston, South Carolina?
Enhance Your Home’s Energy Performance with R21 Insulation: Discover the Advantages, Varieties, and Expert Installation Tips for 2026
R21 Insulation in Charleston, South Carolina typically costs $0.98 to $2 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, South Carolina
$0.98 – $2
per sq ftPrices in Charleston are in line with the national average for r21 insulation.
National average: $0.98 – $2 per sq ft
Cost Breakdown in Charleston
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.44 – $0.68 | sq ft |
| Labor | labor | $0.34 – $0.53 | sq ft |
| Supplies & Other | supplies | $0.12 – $0.18 | sq ft |
| Equipment & Disposal | equipment | $0.08 – $0.12 | sq ft |
Prices adjusted for Charleston local market conditions.
Cost Factors in Charleston, South Carolina
What Affects Pricing
- Materials ($0.44-$0.68/sq ft)
- Labor ($0.34-$0.53/sq ft)
- Supplies & Other ($0.98-$1.51/sq ft)
- Equipment & Disposal ($0.98-$1.51/sq ft)
Local Price Adjustments
Material costsAt national average
Labor costsAt national average
Frequently Asked Questions
References
- Product and Supplies Data: Planner5d pricing for materials used in R21 Insulation — Planner5d, Jan 2026, Website
- Product and Supplies Data: Insulationpal pricing for materials used in R21 Insulation — Insulationpal, Jan 2026, Website
- Labor Wages and Costs: Occupational Employment and Wage Statistics for R21 Insulation — U.S. Bureau of Labor Statistics, Jan 2026, Website
- Labor Cost Benchmarks: Employer Costs for Employee Compensation for R21 Insulation — U.S. Bureau of Labor Statistics, Jan 2026, Website
- Material Cost Benchmarks: Producer Price Index data relevant to R21 Insulation — U.S. Bureau of Labor Statistics, Jan 2026, Website
- Project Spending Data: Improving America’s Housing for R21 Insulation — Harvard Joint Center for Housing Studies, Jan 2026, Website
- Residential Construction and Remodeling Spending data relevant to R21 Insulation — U.S. Census Bureau, Jan 2026, Website
- Project Cost Benchmarking: homeowner project budgeting and planning guidance for R21 Insulation — This Old House, Jan 2026, Website
- Labor Wages and Costs: Unit pricing guidance for R21 Insulation — Journal of Light Construction, Jan 2026, Website
Get Free Estimates in Charleston
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