Spray Foam Insulation cost: Bethlehem vs Philadelphia (2026)
In 2026, spray foam insulation is about 5% less expensive in Bethlehem than in Philadelphia. Most homeowners pay around $3,950 in Bethlehem versus $4,150 in Philadelphia — a gap of roughly $200.
Bethlehem PA
Lower costTypically around $3,950
Philadelphia PA
Typically around $4,150
Bethlehem vs Philadelphia: full breakdown
| Factor | Bethlehem | Philadelphia |
|---|---|---|
| Typical 2026 cost | $3,950 | $4,150 |
| Estimated range | $1,550–$6,300 | $1,650–$6,600 |
| Labor index (vs US) | ×0.99 | ×1.04 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.06 | ×1.06 |
| Local permit | None | None |
| Labor share | $2,150 | $2,300 |
| Materials/equipment | $1,800 | $1,850 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
Bethlehem vs Philadelphia
Is spray foam insulation cheaper in Bethlehem or Philadelphia?
In 2026, spray foam insulation is cheaper in Bethlehem at about $3,950, versus $4,150 in Philadelphia — a difference of about $200 (5%).
Why does spray foam insulation cost more in Philadelphia than Bethlehem?
The main driver is local labor rates: Philadelphia's labor index is 1.04 versus 0.99 in Bethlehem. Climate zone (cold vs cold) also shift the total.
How much is spray foam insulation in Bethlehem, PA?
In Bethlehem, spray foam insulation typically runs $1,550–$6,300 in 2026, with most homeowners paying around $3,950.
Updated June 2026 · By Costadia Editorial