Basic
$1.20 – $3.20 per sq ft
1-1/2 in. white EPS foam board (around R-6), adhesive and fasteners, seams taped
Photo: Adrian Tync · CC BY-SA 4.0 · Source
How Much Does Polystyrene Insulation Cost in Boise, Idaho?
Supply and install EPS or XPS polystyrene foam board insulation (1-2 in) on walls, foundation or under slab, with adhesive/fasteners and taped seams.
Polystyrene Insulation in Boise, Idaho typically costs $1.41 to $3.77 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Polystyrene Insulation in Boise, Idaho
$1.41 – $3.77
per sq ftPrices in Boise are 6.0% lower than the national average for polystyrene insulation.
National average: $1.50 – $4 per sq ft
What you get at each price level
Standard
$1.41 – $3.77 per sq ft
1-1/2 in. graphite EPS foam board (around R-7), adhesive and fasteners, seams taped
Premium
$1.77 – $4.71 per sq ft
1-1/2 in. higher-density graphite EPS (around R-7), adhesive and fasteners, seams taped, edges and penetrations sealed
Cost Breakdown in Boise
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.64 – $1.73 | sq ft |
| Labor | labor | $0.48 – $1.27 | sq ft |
| Supplies & Other | supplies | $0.17 – $0.46 | sq ft |
| Equipment & Disposal | equipment | $0.12 – $0.31 | sq ft |
Prices adjusted for Boise local market conditions.
Polystyrene Insulation photo examples
Expanded polystyrene insulation boards fixed to an exterior wall with dowels
Photo: Adrian Tync · CC BY-SA 4.0 · Source
Find a pro to do thisSamples of white and graphite-grey EPS foam insulation board
Photo: Energieeffiziente Dämmstoffe · CC0 · Source
Find a pro to do thisClose-up of the cut edge of graphite EPS foam insulation board
Photo: Cjp24 · CC BY-SA 4.0 · Source
Find a pro to do thisRigid polystyrene foam boards installed on a building exterior wall
Photo: Manforowicz · CC0 · Source
Find a pro to do this
Cost Factors in Boise, Idaho
What Affects Pricing
- Materials ($0.67-$1.80 per square foot)
- Labor ($0.53-$1.40 per square foot)
- Supplies & Other ($0.18-$0.48 per square foot)
- Equipment & Disposal ($0.12-$0.32 per square foot)
Local Price Adjustments
Material costs4.0% below avg
Labor costs9.0% below avg
Frequently Asked Questions
References
- Rigid Foam Board Insulation, GoldStar, goldstar-insulation.com, retrieved Nov 2026
- Extruded Polystyrene (XPS) Insulation Prices, Rmax, rmax.com, retrieved 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 Boise
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