City comparison
Spray Foam Insulation cost: Boston vs Salem (2026)
Spray foam insulation costs about the same in Boston and Salem in 2026 — roughly $4,500 in each.
Boston MA
$1,800 – $7,200
Typically around $4,500
Salem MA
$1,800 – $7,200
Typically around $4,500
Side by side
Boston vs Salem: full breakdown
| Factor | Boston | Salem |
|---|---|---|
| Typical 2026 cost | $4,500 | $4,500 |
| Estimated range | $1,800–$7,200 | $1,800–$7,200 |
| Labor index (vs US) | ×1.13 | ×1.13 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.06 | ×1.06 |
| Local permit | None | None |
| Labor share | $2,500 | $2,500 |
| Materials/equipment | $2,000 | $2,000 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
FAQ
Boston vs Salem
Is spray foam insulation cheaper in Boston or Salem?
In 2026, spray foam insulation costs about the same in both — roughly $4,500 in each city.
Why does spray foam insulation cost more in Salem than Boston?
The main driver is local labor rates: Salem's labor index is 1.13 versus 1.13 in Boston. Climate zone (cold vs cold) also shift the total.
How much is spray foam insulation in Boston, MA?
In Boston, spray foam insulation typically runs $1,800–$7,200 in 2026, with most homeowners paying around $4,500.
Updated June 2026 · By Costadia Editorial