Spray Foam Insulation cost: Lewiston vs West Scarborough (2026)
The two metros aren't quite in sync on spray foam insulation: Lewiston sits 2% below West Scarborough, or roughly $4,000 versus $4,100 — about $100 apart.
Lewiston ME
Lower costTypically around $4,000
West Scarborough ME
Typically around $4,100
Lewiston vs West Scarborough: full breakdown
| Factor | Lewiston | West Scarborough |
|---|---|---|
| Typical 2026 cost | $4,000 | $4,100 |
| Estimated range | $1,600–$6,400 | $1,650–$6,550 |
| Labor index (vs US) | ×1.01 | ×1.03 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.06 | ×1.06 |
| Local permit | None | None |
| Labor share | $2,200 | $2,250 |
| Materials/equipment | $1,800 | $1,850 |
These are 2026 planning figures for spray foam insulation, localized to each city — not formal quotes.
How much should this gap actually matter?
At 2%, this gap is small enough that it's usually swallowed by normal quote-to-quote variation for spray foam insulation — focus on the contractor, not the city.
Spray foam insulation by type: Lewiston vs West Scarborough
Each spray foam insulation option, priced separately for both metros — the same local labor, climate and permit adjustments applied per city, so you can compare like for like.
| Type | Lewiston | West Scarborough |
|---|---|---|
| Open-cell | $1,600–$4,800 | $1,650–$4,900 |
| Closed-cell | $2,650–$7,450 | $2,700–$7,600 |
Treat these as 2026 localized estimates for spray foam insulation, not quotes from a contractor.
Spray foam insulation by area: Lewiston vs West Scarborough
Spray foam is priced by board foot (1 sq ft at 1 inch thick), which works out to about $1.50–$5 per sq ft of surface installed depending on foam type and thickness. Closed-cell costs more but adds twice the R-value per inch.
| Size | Lewiston | West Scarborough |
|---|---|---|
| 500 sq ft | $950–$2,550 | $1,000–$2,600 |
| 1,000 sq ft | $1,600–$4,250 | $1,650–$4,350 |
| 1,500 sq ft | $2,350–$5,850 | $2,400–$6,000 |
| 2,000+ sq ft | $3,000–$6,950 | $3,050–$7,100 |
Spray foam insulation numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Cheapest time for spray foam insulation in either city
Everyone waits until fall to insulate, which is exactly why fall costs the most. Spring and summer are quieter for installers and often catch a fresh year's rebate budget before it runs dry.
How much insulation is worth paying for?
R-value, air-sealing and material decide both the price and the payback. Our editors on the trade-offs.
The air-sealing case
Insulation without air-sealing underperforms. Sealing leaks first is cheap and often delivers more comfort per dollar than thicker insulation alone — make sure it's in the scope.
The rebate case
Insulation has some of the best rebate math in home improvement — utility and state programs can cover a solid share (the federal 25C credits ended Dec 2025). Check DSIRE before you book and time it to a fresh rebate budget.
The R-value case
Insulate to the DOE recommendation for your climate zone — under-insulating to save money leaves comfort and energy savings on the table that would have paid the job back.
Hit the DOE R-value for your zone, air-seal first, and stack the rebates. Insulation is one of the few upgrades where doing it fully is also the cheapest path to payback.
Lewiston vs West Scarborough
Is spray foam insulation cheaper in Lewiston or West Scarborough?
Lewiston comes out ahead here, at roughly $4,000 for spray foam insulation compared with $4,100 in West Scarborough — a 2% ($100) gap as of 2026.
Why does spray foam insulation cost more in West Scarborough than Lewiston?
Labor rates explain most of it — 1.03 in West Scarborough vs 1.01 in Lewiston. A cold climate versus cold accounts for the rest.
How much is spray foam insulation in Lewiston, ME?
spray foam insulation in Lewiston runs $1,600–$6,400 as of 2026 — most jobs land near $4,000.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
Timing doesn't change by city here — Spring and summer is the cheapest window in both Lewiston and West Scarborough, saving roughly 5–10%. Avoid the pre-winter fall rush in either location, when emergency replacements push prices up.
Should I choose where to live based on spray foam insulation cost?
Not really — the $100 gap is one-time, and smart timing and tighter quotes in West Scarborough can shrink it. Factors that compound over time, like energy prices and home condition, deserve more weight than a single upfront difference.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik