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2026 cost data

Insulation Cost in Hartford, CT (2026)

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

Insulation prices per square foot

Installed prices — material plus labor — adjusted for Hartford, CT labor rates.

Job typeInstalled cost / sq ft1,500 sq ft attic
Attic blown-in fiberglass (R-49)$2.18$3,274
Attic blown-in cellulose (R-49)$2.01$3,009
Attic fiberglass batts (R-38)$1.89$2,832
Wall batts, open framing (R-15)$2.06$3,098
Wall dense-pack retrofit (drill & fill)$3.07$4,602
Crawlspace floor or wall insulation$2.48$3,717
Basement rigid foam + framing$3.66$5,487
Open-cell spray foam (3.5")$2.30$3,451
Closed-cell spray foam (2")$4.25$6,372
Old insulation removal & disposal$1.83$2,744

What whole jobs cost

Typical projectLocal price range
Attic top-up (1,500 sq ft)$1,770 – $3,068
Full attic removal + re-insulate$3,776 – $6,372
Whole-house wall retrofit (2,000 sq ft home)$4,956 – $9,204
Crawlspace encapsulation + insulation$4,484 – $10,620
Garage conversion insulation$1,062 – $2,596
Whole-home spray foam (new build)$8,850 – $18,880

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 Hartford metro compares with the rest of Connecticut.

Insulation cost in Connecticut →

Insulation cost FAQs for Hartford, CT

How much does attic insulation cost in Hartford, CT?

A 1,500 sq ft attic blown to R-49 runs about $2,783 to $3,929 installed in Hartford, CT, or roughly $2.18 per square foot. DIY with rented equipment cuts that by 45–60%.

Is insulation cheaper to DIY in Hartford, CT?

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 Hartford, CT?

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 Hartford, CT?

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 Hartford, CT

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

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