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2026 cost data

Insulation Cost in Kentucky (2026)

Insulation in Kentucky costs below the national average — ranked 8 of 51 for installed price. Kentucky sits in climate zone 4, so attics should hit R-60.

Insulation prices per square foot

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

Job typeInstalled cost / sq ft1,500 sq ft attic
Attic blown-in fiberglass (R-49)$1.65$2,470
Attic blown-in cellulose (R-49)$1.51$2,270
Attic fiberglass batts (R-38)$1.42$2,136
Wall batts, open framing (R-15)$1.56$2,336
Wall dense-pack retrofit (drill & fill)$2.31$3,471
Crawlspace floor or wall insulation$1.87$2,804
Basement rigid foam + framing$2.76$4,139
Open-cell spray foam (3.5")$1.74$2,603
Closed-cell spray foam (2")$3.20$4,806
Old insulation removal & disposal$1.38$2,069

What whole jobs cost

Typical projectLocal price range
Attic top-up (1,500 sq ft)$1,335 – $2,314
Full attic removal + re-insulate$2,848 – $4,806
Whole-house wall retrofit (2,000 sq ft home)$3,738 – $6,942
Crawlspace encapsulation + insulation$3,382 – $8,010
Garage conversion insulation$801 – $1,958
Whole-home spray foam (new build)$6,675 – $14,240

Climate zone 4 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 Kentucky

Louisville

Insulation cost FAQs for Kentucky

How much does attic insulation cost in Kentucky?

A 1,500 sq ft attic blown to R-49 runs about $2,099 to $2,964 installed in Kentucky, or roughly $1.65 per square foot. DIY with rented equipment cuts that by 45–60%.

Is insulation cheaper to DIY in Kentucky?

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 Kentucky?

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 Kentucky?

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 Kentucky

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

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