Attic insulation in Indianapolis
42% of Indianapolis homes heat with electricity, the highest share of the six metros we cover. That matters, because AES Indiana's attic rebate is only for homes with electric heat.12
AES rebate
$0.425 per sq ft if the attic starts at R-11 or less; $0.325 if it starts at R-12 to R-49.2
Electric heat
41.6% of Indianapolis homes heat with electricity; 55.7% with utility gas.1
Contractor
Rebates require a member of AES Indiana's Quality Contractor Network.2
The AES Indiana attic rebate
- Starting at R-11 or less: $0.425 per square foot.2
- Starting at R-12 to R-49: $0.325 per square foot.2
- Heat type must be electric to be eligible.2
- Work must be done by a member of AES Indiana's Quality Contractor Network, who submits the application or takes the rebate off the invoice as an instant discount. Rebate checks take 4 to 6 weeks.2
If you heat with gas, this rebate doesn't apply. Ask your gas utility about current programs. The Indianapolis cost page works through the rebate on a typical attic.
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ENERGY STAR recommends R-60 for an uninsulated attic, or R-49 added where 3 to 4 inches already exist, in zones 4A/4B through 8.3 Blown-in to R-49 is about 16.5 inches deep at minimum, and R-60 about 20 inches.4
Attic insulation removal and replacement in Indianapolis
Indianapolis's median home was built in 1973, and 59% predate 1980.1 If old insulation is wet, moldy, pest-damaged or hazardous, it should come out: $1 to $2 per square foot for removal, or $2 to $6 including new insulation, nationally.5 Otherwise, topping up is usually cheaper.5
Choosing an attic insulation company in Indianapolis
- Electric heat? Choose a Quality Contractor Network member so you can claim the AES rebate.2
- Ask them to document the starting R-value, since it sets the rebate rate.2
- Make sure soffit baffles go in so the new insulation doesn't block attic ventilation.5
Areas we serve
We match homeowners across the Indianapolis area, including these communities and ZIP codes:
- Indianapolis46113 · 46183 · 46201 · 46202 · 46203 · 46204 · 46205 · 46206 · 46208 · 46214 · 46217 · 46218 · 46219 · 46220 · 46221 · 46222 · 46224 · 46225 · 46226 · 46227 · 46228 · 46229 · 46231 · 46234 · 46235 · 46237 · 46239 · 46240 · 46241 · 46250 · 46254 · 46256 · 46259 · 46260 · 46268 · 46278
- Lawrence46216 · 46226 · 46235 · 46236
- Beech Grove46107
- Speedway46222 · 46224
- Carmel46032 · 46033 · 46280 · 46290
- Fishers46037 · 46038
- Noblesville46060 · 46062
- Westfield46074
- Zionsville46075 · 46077
- Greenwood46142 · 46143
- Plainfield46168 · 46231
- Avon46123
- Brownsburg46112
ZIP codes are 2020 Census ZIP Code Tabulation Areas, which closely approximate USPS ZIP codes. We list ZIPs that make up a substantial share of each community, so edge ZIPs that barely touch a town are left out, and some ZIPs span two towns.7 Not on the list? Send the form anyway, and we'll tell you if we can help.
Common questions
Does AES Indiana give rebates for attic insulation?
Yes, for electrically heated homes: $0.425 per square foot if the attic starts at R-11 or less, or $0.325 per square foot from R-12 to R-49, through a Quality Contractor Network member.
My Indianapolis home has gas heat. Can I get the AES rebate?
No. AES Indiana says the heat type must be electric to be eligible for the attic insulation rebate.
How long does the AES rebate take?
AES says to allow 4 to 6 weeks after the contractor submits the application, or the contractor can apply it as an instant discount.
How deep should attic insulation be?
For blown-in insulation, about 16.5 inches for R-49 and 20 inches for R-60, per HomeGuide.
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
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, tables B25035 (median year built), B25034 (year built), B25003 (tenure), B25040 (house heating fuel)
- AES Indiana, "Home Improvement Rebates"
- ENERGY STAR, "Recommended Home Insulation R-Values"
- HomeGuide, "Blown-In Insulation Cost" (national figures, Nov. 5, 2025)
- HomeGuide, "Attic Insulation Cost" (national figures, Jan. 13, 2026)
- U.S. EPA, "Protect Your Family from Asbestos-Contaminated Vermiculite Insulation"
- U.S. Census Bureau, 2020 ZIP Code Tabulation Area relationship files