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How Much Does Crawlspace Insulation Cost in Seattle, Washington?

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

Crawlspace Insulation in Seattle, Washington typically costs $1.72 to $5.15 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 Seattle, Washington

$1.72 – $5.15

per sq ft

Prices in Seattle are 19.0% higher than the national average for crawlspace insulation.

National average: $1.50 – $4.50 per sq ft

Cost Breakdown in Seattle

ComponentCategoryPrice RangeUnit
Materialsmaterial$0.71 – $2.11sq ft
Laborlabor$0.70 – $2.10sq ft
Supplies & Othersupplies$0.19 – $0.56sq ft
Equipment & Disposalequipment$0.12 – $0.37sq ft
Prices adjusted for Seattle 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 Seattle, Washington

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% above avg
Labor costs34.0% above avg

Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.

Frequently Asked Questions

References

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