How Much Does Spray Foam Insulation Cost in Portland, Maine?
Professionally applied open- or closed-cell spray foam insulation in walls, attic or crawlspace, priced per square foot of covered area at typical depth.
Spray Foam Insulation in Portland, Maine typically costs $1.47 to $4.41 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
$1.47 – $4.41
per sq ftPrices in Portland are 1.0% lower than the national average for spray foam insulation.
National average: $1.50 – $4.50 per sq ft
Cost Breakdown in Portland
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.65 – $1.96 | sq ft |
| Labor | labor | $0.53 – $1.58 | sq ft |
| Supplies & Other | supplies | $0.17 – $0.52 | sq ft |
| Equipment & Disposal | equipment | $0.12 – $0.35 | sq ft |
Spray Foam Insulation photo examples
Gloved hand spraying foam insulation between attic rafters
Photo: Photo-Flare · CC BY 2.0 · Source
Installer in protective suit spraying foam into a wall stud bay
Photo: dunktanktechnician · CC BY 2.0 · Source
Installer in protective gear spraying foam in a crawlspace
Cost Factors in Portland, Maine
What Affects Pricing
- Materials ($0.67-$2.02 per square foot)
- Labor ($0.53-$1.58 per square foot)
- Supplies & Other ($0.18-$0.54 per square foot)
- Equipment & Disposal ($0.12-$0.36 per square foot)
Local Price Adjustments
Frequently Asked Questions
References
- HomeGuide: Spray foam insulation cost, HomeGuide, retrieved Nov 2026
- HomeAdvisor: Spray foam insulation cost, HomeAdvisor, retrieved Nov 2026
- Thumbtack: Spray foam insulation cost, Thumbtack, 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
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