What does attic insulation cost in Indianapolis?
For an Indianapolis home with electric heat, the AES Indiana rebate can cover a meaningful share of a blown-in job. For gas-heated homes, budget at full price.1
National average
$1,000–$2,700
HomeGuide's national average range to insulate an attic; small jobs from $500, large ones up to $6,000.2
AES rebate math
| Attic size | Starts at ≤R-11 ($0.425) | Starts at R-12 to R-49 ($0.325) |
|---|---|---|
| 800 sq ft | $340 | $260 |
| 1,000 sq ft | $425 | $325 |
| 1,500 sq ft | $637.50 | $487.50 |
Our arithmetic on AES Indiana's published rates; electric heat required.1
Net cost example
A 1,000-square-foot attic blown in to R-49 costs $1,100 to $1,900 nationally.3 For an electrically heated home starting at R-11 or less, the $425 AES rebate brings that to about $675 to $1,475 (our arithmetic), before air sealing or other extras.1
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- Air sealing: $350 to $3,000.2
- Removing old insulation: $1 to $2 per sq ft.2
- Soffit baffles: $2 to $3 each.2
- Insulation labor alone: $0.50 to $1.30 per sq ft.2
- Minimum job charges of $1,500 to $2,000 at some companies.3
No federal credit for 2026 work
The IRS's Energy Efficient Home Improvement Credit applied to improvements made through December 31, 2025.5 Don't count on it for 2026 work.
Common questions
How much does attic insulation cost in Indianapolis?
No local survey exists. HomeGuide's national average range is $1,000 to $2,700; blown-in to R-49 costs $1,100 to $1,900 per 1,000 square feet nationally.
How much is the AES Indiana attic rebate on 1,000 square feet?
$425 if the attic starts at R-11 or less, or $325 if it starts at R-12 to R-49, for electrically heated homes.
Is there a minimum job size?
Some insulation companies have a $1,500 to $2,000 minimum project charge, according to HomeGuide.
Does the federal tax credit still apply?
No. It covered improvements made through December 31, 2025.
General information summarized from the public sources listed below. It isn't professional, engineering or legal advice. Codes and programs change; confirm current requirements with your local building department or utility before you start.
Sources
- AES Indiana, "Home Improvement Rebates"
- HomeGuide, "Attic Insulation Cost" (national figures, Jan. 13, 2026)
- HomeGuide, "Blown-In Insulation Cost" (national figures, Nov. 5, 2025)
- U.S. EPA, "Protect Your Family from Asbestos-Contaminated Vermiculite Insulation"
- IRS, "Energy Efficient Home Improvement Credit"