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How Much Does R50 Insulation Cost in Wilmington, Delaware?

Supply and install insulation to about R-49/R-50 in an attic (blown fiberglass/cellulose ~16-18 in., or thick batts), per sq ft; old insulation removal and air sealing extra.

R50 Insulation in Wilmington, Delaware typically costs $1.27 to $3.06 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.

R50 Insulation in Wilmington, Delaware

$1.27 – $3.06

per sq ft

Prices in Wilmington are 4.0% higher than the national average for r50 insulation.

National average: $1.25 – $3 per sq ft

What you get at each price level

  • Basic

    $1.08 – $2.60 per sq ft

    Loose-fill fiberglass blown over the attic floor to an R-49 settled depth of about 16-18 in., eave baffles and depth markers set

  • Standard

    $1.27 – $3.06 per sq ft

    Blown fiberglass to R-49 with foam baffles at the eave bays, hatch dam, clearance kept around flues and lights

  • Premium

    $1.59 – $3.82 per sq ft

    Blown cellulose to R-50 with settling allowance, baffles at every eave bay, hatch dam with an insulated hatch cover, depth markers

Cost Breakdown in Wilmington

ComponentCategoryPrice RangeUnit
Materialsmaterial$0.55 – $1.31sq ft
Laborlabor$0.48 – $1.17sq ft
Supplies & Othersupplies$0.15 – $0.35sq ft
Equipment & Disposalequipment$0.10 – $0.23sq ft
Prices adjusted for Wilmington local market conditions.

Cost Factors in Wilmington, Delaware

What Affects Pricing

  • Materials ($0.57-$1.35 per square foot)
  • Labor ($0.43-$1.05 per square foot)
  • Supplies & Other ($0.15-$0.36 per square foot)
  • Equipment & Disposal ($0.10-$0.24 per square foot)

Local Price Adjustments

Material costs3.0% below avg
Labor costs11.0% above avg

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

Frequently Asked Questions

References

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