Spray Foam Insulation cost: Chicago vs Peoria (2026)
Budget-wise, spray foam insulation in Chicago ($4,500) runs 20% more than in Peoria ($3,750), a roughly $750 spread.
Chicago IL
Typically around $4,500
Peoria IL
Lower costTypically around $3,750
Chicago vs Peoria: full breakdown
| Factor | Chicago | Peoria |
|---|---|---|
| Typical 2026 cost | $4,500 | $3,750 |
| Estimated range | $1,800–$7,150 | $1,500–$6,000 |
| Labor index (vs US) | ×1.12 | ×0.95 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.06 | ×1.06 |
| Local permit | None | None |
| Labor share | $2,500 | $2,050 |
| Materials/equipment | $2,000 | $1,700 |
Spray foam insulation numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Is the gap worth worrying about?
That's a real $750 difference (20%) on spray foam insulation — worth factoring in, though off-season timing and a tighter quote in Chicago can narrow it.
Spray foam insulation by type: Chicago vs Peoria
Below, each spray foam insulation option is priced independently for both cities, with identical local labor, climate and permit logic applied — so the comparison holds up.
| Type | Chicago | Peoria |
|---|---|---|
| Open-cell | $1,800–$5,350 | $1,500–$4,500 |
| Closed-cell | $3,000–$8,350 | $2,500–$7,000 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
Spray foam insulation by area: Chicago vs Peoria
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 | Chicago | Peoria |
|---|---|---|
| 500 sq ft | $1,050–$2,850 | $900–$2,400 |
| 1,000 sq ft | $1,800–$4,750 | $1,500–$4,000 |
| 1,500 sq ft | $2,600–$6,550 | $2,200–$5,500 |
| 2,000+ sq ft | $3,350–$7,750 | $2,800–$6,500 |
Spray foam insulation numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
What insulation pros earn in each metro
With labor making up about 55% of a spray foam insulation job, wage differences between metros do most of the work here. These figures are real BLS OEWS installer wages, not modeled estimates.
Chicago-Naperville-Elgin metro · about 23% above the US average installer wage.
No BLS metro wage series for Peoria; we use Illinois regional price parity instead.
Source: U.S. Bureau of Labor Statistics, OEWS metro wages for HVAC installers (used as a trade-labor index).
Cheapest time for spray foam insulation in either city
Everyone insulates in fall before winter, so that's the busy, full-price season. Booking in spring or summer catches off-peak pricing — and utility rebate budgets are often freshest early in the year.
How much insulation is worth paying for?
Insulation is one of the few home upgrades where spending more can genuinely pay for itself. Our editors on the choices that decide both cost and payback.
The air-sealing case
Skip air-sealing and you're insulating around the very holes letting conditioned air leak out. Caulk, foam and weatherstripping are inexpensive and often return more felt comfort than a thicker blanket of insulation ever would — insist the crew handles the leaks before they bury them.
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.
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.
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.
Chicago vs Peoria
Is spray foam insulation cheaper in Chicago or Peoria?
Peoria wins on price: spray foam insulation runs about $3,750 there versus $4,500 in Chicago, a gap of roughly $750 (20%) as of 2026.
Why does spray foam insulation cost more in Chicago than Peoria?
It comes down to labor: Chicago indexes at 1.12 against Peoria's 0.95. The cold-vs-cold climate difference adds to the gap.
How much is spray foam insulation in Chicago, IL?
Expect to pay $1,800 to $7,150 for spray foam insulation in Chicago in 2026, averaging around $4,500.
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 Chicago and Peoria, 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?
Probably not. Yes, $750 is a real gap, but it's a one-time cost you can partly offset in Chicago with off-season timing and tighter bids. Long-term factors like energy prices and home condition matter more than this one number.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik