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2026 cost data

Insulation Cost in North Dakota (2026)

Insulation in North Dakota costs close to the national average — ranked 29 of 51 for installed price. North Dakota sits in climate zone 6, so attics should hit R-60.

Insulation prices per square foot

Installed prices — material plus labor — adjusted for North Dakota labor rates.

Job typeInstalled cost / sq ft1,500 sq ft attic
Attic blown-in fiberglass (R-49)$1.85$2,775
Attic blown-in cellulose (R-49)$1.70$2,550
Attic fiberglass batts (R-38)$1.60$2,400
Wall batts, open framing (R-15)$1.75$2,625
Wall dense-pack retrofit (drill & fill)$2.60$3,900
Crawlspace floor or wall insulation$2.10$3,150
Basement rigid foam + framing$3.10$4,650
Open-cell spray foam (3.5")$1.95$2,925
Closed-cell spray foam (2")$3.60$5,400
Old insulation removal & disposal$1.55$2,325

What whole jobs cost

Typical projectLocal price range
Attic top-up (1,500 sq ft)$1,500 – $2,600
Full attic removal + re-insulate$3,200 – $5,400
Whole-house wall retrofit (2,000 sq ft home)$4,200 – $7,800
Crawlspace encapsulation + insulation$3,800 – $9,000
Garage conversion insulation$900 – $2,200
Whole-home spray foam (new build)$7,500 – $16,000

Climate zone 6 R-value targets

Department of Energy retrofit recommendations for this zone.

Attic
R-60
Walls
R-21
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

Insulation cost FAQs for North Dakota

How much does attic insulation cost in North Dakota?

A 1,500 sq ft attic blown to R-49 runs about $2,359 to $3,330 installed in North Dakota, or roughly $1.85 per square foot. DIY with rented equipment cuts that by 45–60%.

Is insulation cheaper to DIY in North Dakota?

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 North Dakota?

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 North Dakota?

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 North Dakota

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

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