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Close-up of two foil-faced rigid polyisocyanurate insulation boards joined at a rebated shiplap edge.

Photo: Sealle · CC BY-SA 4.0 · Source

How Much Does Polyisocyanurate Insulation Cost in Billings, Montana?

Supply and install rigid polyiso foam board insulation (1-2 in, foil faced) on walls, roof deck or basement, with taped seams and fasteners.

Polyisocyanurate Insulation in Billings, Montana typically costs $1.95 to $4.38 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.

Polyisocyanurate Insulation in Billings, Montana

$1.95 – $4.38

per sq ft

Prices in Billings are 2.0% lower than the national average for polyisocyanurate insulation.

National average: $2 – $4.50 per sq ft

What you get at each price level

  • Basic

    $1.66 – $3.73 per sq ft

    1-1/2 in. foil-faced polyiso board (around R-9), fastened to the surface, seams taped

  • Standard

    $1.95 – $4.38 per sq ft

    1-1/2 in. foil-faced polyiso board (around R-9), fastened with cap fasteners, all seams taped with foil tape

  • Premium

    $2.43 – $5.48 per sq ft

    1-1/2 in. foil-faced polyiso board (around R-9), fastened, seams taped, edges and penetrations sealed with foam

Cost Breakdown in Billings

ComponentCategoryPrice RangeUnit
Materialsmaterial$0.87 – $1.95sq ft
Laborlabor$0.69 – $1.57sq ft
Supplies & Othersupplies$0.23 – $0.52sq ft
Equipment & Disposalequipment$0.15 – $0.35sq ft
Prices adjusted for Billings local market conditions.

Polyisocyanurate Insulation photo examples

Cost Factors in Billings, Montana

What Affects Pricing

  • Materials ($0.91-$2.03 per square foot)
  • Labor ($0.69-$1.57 per square foot)
  • Supplies & Other ($0.24-$0.54 per square foot)
  • Equipment & Disposal ($0.16-$0.36 per square foot)

Local Price Adjustments

Material costs4.0% below avg
Labor costsAt national average

Frequently Asked Questions

References

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