How Much Does Attic Insulation Cost in Connecticut?

Connecticut pricing is above the national average. Updated for 2024.

Low End
$1,220
Average
$2,440
High End
$4,270
per project
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Attic Insulation Pricing in Connecticut

In Connecticut, the average cost for attic insulation is $2,440 per project, which is 22% higher than the national average of $2,000. Most Connecticut residents pay between $1,220 and $4,270.

Connecticut has a higher cost of living than most states, which translates to higher labor rates and material costs. Urban areas within Connecticut may be even higher.

Adding or replacing attic insulation is one of the most cost-effective home energy upgrades. Options include blown-in fiberglass, cellulose, and spray foam.

Connecticut vs National Average

Connecticut Average
$2,440
National Average
$2,000
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What Affects Attic Insulation Cost in Connecticut?

Type

Blown-in fiberglass: $1.00-$1.50/sq ft. Cellulose: $1.00-$1.50/sq ft. Spray foam: $2.50-$5.00/sq ft

Attic Size

1,000 sq ft: $1,000-$2,500. 1,500 sq ft: $1,500-$3,500. 2,000 sq ft: $2,000-$5,000

💡 Tips to Save on Attic Insulation in Connecticut

  • 1.Blown-in insulation is the most affordable option
  • 2.Check for utility rebates — many cover 25-50% of insulation costs
  • 3.DIY blown-in insulation kits are available at home improvement stores
  • 4.Seal air leaks before adding insulation for maximum benefit
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Frequently Asked Questions

How much can insulation save on energy bills?

Properly insulated attics can reduce heating and cooling costs by 15-25%.

Attic Insulation Cost in Other States

Related Cost Guides for Connecticut

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