Spray Foam Insulation cost: Chicago vs North Peoria (2026)
The two metros aren't quite in sync on spray foam insulation: Chicago sits 20% above North Peoria, or roughly $4,500 versus $3,750 — about $750 apart.
Chicago IL
Typically around $4,500
North Peoria IL
Lower costTypically around $3,750
Chicago vs North Peoria: full breakdown
| Factor | Chicago | North 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 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
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 North Peoria
Every spray foam insulation type gets its own localized price for each metro, using the same labor, climate and permit adjustments — a true apples-to-apples comparison.
| Type | Chicago | North Peoria |
|---|---|---|
| Open-cell | $1,800–$5,350 | $1,500–$4,500 |
| Closed-cell | $3,000–$8,350 | $2,500–$7,000 |
These are 2026 planning figures for spray foam insulation, localized to each city — not formal quotes.
Spray foam insulation by area: Chicago vs North 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 | North 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 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
What insulation pros earn in each metro
Since labor accounts for around 55% of what a spray foam insulation job costs, it's the biggest lever behind any price gap between cities. What you're seeing below is actual BLS metro wage data for skilled installers — not a guess.
Chicago-Naperville-Elgin metro · about 23% above the US average installer wage.
No BLS metro wage series for North 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
The fall insulation rush drives prices up because everyone's thinking about the coming winter at once. Book in spring or summer instead, when demand is lower and rebate funds haven't been claimed yet.
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 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.
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.
Don't half-do an insulation job to save money upfront: seal the air leaks first, insulate to the DOE target for your zone, and stack the rebates. The full scope pays back faster than the partial one.
Chicago vs North Peoria
Is spray foam insulation cheaper in Chicago or North Peoria?
North 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 North Peoria?
Chicago's higher labor index (1.12 vs 0.95 in North Peoria) is the biggest factor, with the cold/cold climate split playing a smaller role.
How much is spray foam insulation in Chicago, IL?
spray foam insulation in Chicago runs $1,800–$7,150 as of 2026 — most jobs land near $4,500.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
It doesn't vary by location — Spring and summer is the discount window in both Chicago and North Peoria (roughly 5–10% off), while the pre-winter fall rush tends to be the most expensive in either city.
Should I choose where to live based on spray foam insulation cost?
That would be a stretch. $750 is a one-time difference, not an ongoing one, and off-season buying plus apples-to-apples bids in Chicago can close a good chunk of it. What matters more long-term is energy costs, climate and the condition of the home.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik