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2026 cost data

Insulation Cost in Chicago, IL (2026)

Insulation contractors in Chicago, IL price above the national average. Here is what attic, wall, crawlspace and spray foam work should cost in the Chicago metro in 2026.

Insulation prices per square foot

Installed prices — material plus labor — adjusted for Chicago, IL labor rates.

Job typeInstalled cost / sq ft1,500 sq ft attic
Attic blown-in fiberglass (R-49)$2.13$3,191
Attic blown-in cellulose (R-49)$1.95$2,933
Attic fiberglass batts (R-38)$1.84$2,760
Wall batts, open framing (R-15)$2.01$3,019
Wall dense-pack retrofit (drill & fill)$2.99$4,485
Crawlspace floor or wall insulation$2.42$3,623
Basement rigid foam + framing$3.56$5,348
Open-cell spray foam (3.5")$2.24$3,364
Closed-cell spray foam (2")$4.14$6,210
Old insulation removal & disposal$1.78$2,674

What whole jobs cost

Typical projectLocal price range
Attic top-up (1,500 sq ft)$1,725 – $2,990
Full attic removal + re-insulate$3,680 – $6,210
Whole-house wall retrofit (2,000 sq ft home)$4,830 – $8,970
Crawlspace encapsulation + insulation$4,370 – $10,350
Garage conversion insulation$1,035 – $2,530
Whole-home spray foam (new build)$8,625 – $18,400

Climate zone 5 R-value targets

Department of Energy retrofit recommendations for this zone.

Attic
R-60
Walls
R-20
Floors
R-30
Check your current R-value →

Price your own job

These tables are averages. Punch in your real measurements for a number you can compare against a bid.

Insulation costAtticBlown-in bagsProject total

Statewide context

See how the Chicago metro compares with the rest of Illinois.

Insulation cost in Illinois →

Insulation cost FAQs for Chicago, IL

How much does attic insulation cost in Chicago, IL?

A 1,500 sq ft attic blown to R-49 runs about $2,713 to $3,830 installed in Chicago, IL, or roughly $2.13 per square foot. DIY with rented equipment cuts that by 45–60%.

Is insulation cheaper to DIY in Chicago, IL?

Yes. Labor is most of an insulation bid, so blowing your own attic or installing batts typically saves 45–60% of the installed price. Spray foam, dense-pack wall retrofits and removal jobs are worth hiring out.

What drives insulation prices in Chicago, IL?

Local labor rates, how far crews travel, attic access, whether old insulation has to be removed first, and the R-value your climate zone calls for. Material prices barely change between states — labor is the swing factor.

Are there rebates in Chicago, IL?

The federal 25C tax credit covers 30% of insulation and air-sealing material costs up to $1,200 per year, and most utilities add their own attic and air-sealing rebates. Always check with your utility before booking work.

Materials for an insulation job in Chicago, IL

Fiberglass Insulation Rolls R13Browse current prices and top-rated options on Amazon

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