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2026 cost data

Insulation Cost in Colorado (2026)

Insulation in Colorado costs above the national average — ranked 33 of 51 for installed price. Colorado sits in climate zone 5, so attics should hit R-60.

Insulation prices per square foot

Installed prices — material plus labor — adjusted for Colorado labor rates.

Job typeInstalled cost / sq ft1,500 sq ft attic
Attic blown-in fiberglass (R-49)$1.96$2,942
Attic blown-in cellulose (R-49)$1.80$2,703
Attic fiberglass batts (R-38)$1.70$2,544
Wall batts, open framing (R-15)$1.85$2,783
Wall dense-pack retrofit (drill & fill)$2.76$4,134
Crawlspace floor or wall insulation$2.23$3,339
Basement rigid foam + framing$3.29$4,929
Open-cell spray foam (3.5")$2.07$3,101
Closed-cell spray foam (2")$3.82$5,724
Old insulation removal & disposal$1.64$2,465

What whole jobs cost

Typical projectLocal price range
Attic top-up (1,500 sq ft)$1,590 – $2,756
Full attic removal + re-insulate$3,392 – $5,724
Whole-house wall retrofit (2,000 sq ft home)$4,452 – $8,268
Crawlspace encapsulation + insulation$4,028 – $9,540
Garage conversion insulation$954 – $2,332
Whole-home spray foam (new build)$7,950 – $16,960

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

Cities in Colorado

Denver

Insulation cost FAQs for Colorado

How much does attic insulation cost in Colorado?

A 1,500 sq ft attic blown to R-49 runs about $2,500 to $3,530 installed in Colorado, or roughly $1.96 per square foot. DIY with rented equipment cuts that by 45–60%.

Is insulation cheaper to DIY in Colorado?

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 Colorado?

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 Colorado?

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 Colorado

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

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