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2026 cost data

Insulation Cost in Denver, CO (2026)

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

Insulation prices per square foot

Installed prices — material plus labor — adjusted for Denver, CO labor rates.

Job typeInstalled cost / sq ft1,500 sq ft attic
Attic blown-in fiberglass (R-49)$2.04$3,053
Attic blown-in cellulose (R-49)$1.87$2,805
Attic fiberglass batts (R-38)$1.76$2,640
Wall batts, open framing (R-15)$1.93$2,888
Wall dense-pack retrofit (drill & fill)$2.86$4,290
Crawlspace floor or wall insulation$2.31$3,465
Basement rigid foam + framing$3.41$5,115
Open-cell spray foam (3.5")$2.15$3,218
Closed-cell spray foam (2")$3.96$5,940
Old insulation removal & disposal$1.71$2,558

What whole jobs cost

Typical projectLocal price range
Attic top-up (1,500 sq ft)$1,650 – $2,860
Full attic removal + re-insulate$3,520 – $5,940
Whole-house wall retrofit (2,000 sq ft home)$4,620 – $8,580
Crawlspace encapsulation + insulation$4,180 – $9,900
Garage conversion insulation$990 – $2,420
Whole-home spray foam (new build)$8,250 – $17,600

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 Denver metro compares with the rest of Colorado.

Insulation cost in Colorado →

Insulation cost FAQs for Denver, CO

How much does attic insulation cost in Denver, CO?

A 1,500 sq ft attic blown to R-49 runs about $2,595 to $3,663 installed in Denver, CO, or roughly $2.04 per square foot. DIY with rented equipment cuts that by 45–60%.

Is insulation cheaper to DIY in Denver, CO?

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 Denver, CO?

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 Denver, CO?

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 Denver, CO

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

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