City comparison
Spray Foam Insulation cost: Boise City vs Nampa (2026)
Spray foam insulation costs about the same in Boise City and Nampa in 2026 — roughly $3,850 in each.
Boise City ID
$1,550 – $6,150
Typically around $3,850
Nampa ID
$1,550 – $6,150
Typically around $3,850
Side by side
Boise City vs Nampa: full breakdown
| Factor | Boise City | Nampa |
|---|---|---|
| Typical 2026 cost | $3,850 | $3,850 |
| Estimated range | $1,550–$6,150 | $1,550–$6,150 |
| Labor index (vs US) | ×0.97 | ×0.97 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.06 | ×1.06 |
| Local permit | None | None |
| Labor share | $2,100 | $2,100 |
| Materials/equipment | $1,750 | $1,750 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
FAQ
Boise City vs Nampa
Is spray foam insulation cheaper in Boise City or Nampa?
In 2026, spray foam insulation costs about the same in both — roughly $3,850 in each city.
Why does spray foam insulation cost more in Nampa than Boise City?
The main driver is local labor rates: Nampa's labor index is 0.97 versus 0.97 in Boise City. Climate zone (cold vs cold) also shift the total.
How much is spray foam insulation in Boise City, ID?
In Boise City, spray foam insulation typically runs $1,550–$6,150 in 2026, with most homeowners paying around $3,850.
Updated June 2026 · By Costadia Editorial