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2026 cost data

Insulation Cost in Nashville, TN (2026)

Insulation contractors in Nashville, TN price close to the national average. Here is what attic, wall, crawlspace and spray foam work should cost in the Nashville metro in 2026.

Insulation prices per square foot

Installed prices — material plus labor — adjusted for Nashville, TN labor rates.

Job typeInstalled cost / sq ft1,500 sq ft attic
Attic blown-in fiberglass (R-49)$1.78$2,664
Attic blown-in cellulose (R-49)$1.63$2,448
Attic fiberglass batts (R-38)$1.54$2,304
Wall batts, open framing (R-15)$1.68$2,520
Wall dense-pack retrofit (drill & fill)$2.50$3,744
Crawlspace floor or wall insulation$2.02$3,024
Basement rigid foam + framing$2.98$4,464
Open-cell spray foam (3.5")$1.87$2,808
Closed-cell spray foam (2")$3.46$5,184
Old insulation removal & disposal$1.49$2,232

What whole jobs cost

Typical projectLocal price range
Attic top-up (1,500 sq ft)$1,440 – $2,496
Full attic removal + re-insulate$3,072 – $5,184
Whole-house wall retrofit (2,000 sq ft home)$4,032 – $7,488
Crawlspace encapsulation + insulation$3,648 – $8,640
Garage conversion insulation$864 – $2,112
Whole-home spray foam (new build)$7,200 – $15,360

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

Statewide context

See how the Nashville metro compares with the rest of Tennessee.

Insulation cost in Tennessee →

Insulation cost FAQs for Nashville, TN

How much does attic insulation cost in Nashville, TN?

A 1,500 sq ft attic blown to R-49 runs about $2,264 to $3,197 installed in Nashville, TN, or roughly $1.78 per square foot. DIY with rented equipment cuts that by 45–60%.

Is insulation cheaper to DIY in Nashville, TN?

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 Nashville, TN?

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 Nashville, TN?

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 Nashville, TN

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

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