How Much Does Polyurethane Insulation Cost in Charleston, South Carolina?
Spray polyurethane foam insulation (open- or closed-cell) installed by a contractor in walls, attic or rim joists, priced per sq ft of covered area.
Polyurethane Insulation in Charleston, South Carolina typically costs $1.39 to $4.64 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
$1.39 – $4.64
per sq ftPrices in Charleston are 8.0% lower than the national average for polyurethane insulation.
National average: $1.50 – $5 per sq ft
Cost Breakdown in Charleston
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.64 – $2.16 | sq ft |
| Labor | labor | $0.46 – $1.52 | sq ft |
| Supplies & Other | supplies | $0.16 – $0.58 | sq ft |
| Equipment & Disposal | equipment | $0.12 – $0.38 | sq ft |
Cost Factors in Charleston, South Carolina
What Affects Pricing
- Materials ($0.67-$2.25 per square foot)
- Labor ($0.53-$1.75 per square foot)
- Supplies & Other ($0.17-$0.60 per square foot)
- Equipment & Disposal ($0.13-$0.40 per square foot)
Local Price Adjustments
Material costs in Charleston run proportionally higher than labor, which may favor labor-intensive approaches.
Frequently Asked Questions
How we price this
BuildX Pro researches and reviews the national price range for Polyurethane 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 Charleston
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