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How Much Does Crawlspace Insulation Cost in Charleston, South Carolina?

Insulate a crawl space (batts in the subfloor or rigid/spray foam on walls), per sq ft of crawl space.

Crawlspace Insulation in Charleston, South Carolina typically costs $1.39 to $4.18 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.

Crawlspace Insulation in Charleston, South Carolina

$1.39 – $4.18

per sq ft

Prices in Charleston are 8.0% lower than the national average for crawlspace insulation.

National average: $1.50 – $4.50 per sq ft

Cost Breakdown in Charleston

ComponentCategoryPrice RangeUnit
Materialsmaterial$0.65 – $1.95sq ft
Laborlabor$0.45 – $1.37sq ft
Supplies & Othersupplies$0.17 – $0.52sq ft
Equipment & Disposalequipment$0.12 – $0.35sq ft
Prices adjusted for Charleston local market conditions.

Crawlspace Insulation photo examples

  • A worker in a white protective suit and respirator kneels in a crawl space spraying foam onto the joists above foil-faced walls.

    Installer in protective suit and respirator spraying foam insulation in a crawl space

    Photo: Jeskola26 · CC0 · Source

Cost Factors in Charleston, South Carolina

What Affects Pricing

  • Materials ($0.68-$2.03 per square foot)
  • Labor ($0.52-$1.57 per square foot)
  • Supplies & Other ($0.18-$0.54 per square foot)
  • Equipment & Disposal ($0.12-$0.36 per square foot)

Local Price Adjustments

Material costs4.0% below avg
Labor costs13.0% below avg

Material costs in Charleston run proportionally higher than labor, which may favor labor-intensive approaches.

Frequently Asked Questions

References

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