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Compare Insulation costs in Portland, ME (2026)
Not sure which option fits? Here's how every Insulation project compares in Portland — local 2026 estimates plus what each choice is best for. The most budget-friendly option here is Spray Foam Insulation (from $1,650).
Spray Foam InsulationBest value$1,650 – $6,550
Best for: Top R-value plus air sealing in oneTypically $4,100
Attic Insulation$1,650 – $6,650
Best for: Highest-ROI energy upgrade for most homesTypically $4,150
Often paired with Insulation in Portland
Homeowners tackling Insulation frequently budget for these too.
Estimates are localized to Portland (cold climate) using local labor price levels, climate factors. Always confirm with local contractors.