What does attic insulation cost in Louisville?
With no general LG&E insulation rebate, a Louisville attic budget comes down to attic size, insulation type and the extras in the bid.12
National average
$1,000–$2,700
HomeGuide's national average range to insulate an attic, with a national average of $1,800.2
National cost by attic size
| Attic size | Average installed (national) |
|---|---|
| 500 sq ft | $500–$2,000 |
| 1,000 sq ft | $1,000–$4,000 |
| 1,500 sq ft | $1,500–$6,000 |
| 2,000 sq ft | $2,000–$8,000 |
Source: HomeGuide, at $1 to $4 per square foot installed.2
Comparing bids line by line
| Line item | National range |
|---|---|
| Air sealing | $350–$3,000 |
| Removal of old insulation | $1–$2 per sq ft |
| Soffit baffles | $2–$3 each |
| Roof vent | $200–$700 |
| Attic cleaning | $100–$500+ |
| Insulation labor | $0.50–$1.30 per sq ft |
Source: HomeGuide.2 Two bids with the same total can differ a lot in what's included.
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Get my free quoteTakes under a minuteRemoval and replacement
Full replacement costs $2 to $6 per square foot nationally, including removal, or $2,000 to $6,000 on a 1,000-square-foot attic (our arithmetic).2
Help with the cost
Income-qualified LG&E customers can apply to WeCare, which may install insulation at no additional cost.4 The federal tax credit ended for improvements after December 31, 2025.5
Common questions
How much does attic insulation cost in Louisville?
No local survey exists. HomeGuide's national figures are $1 to $4 per square foot installed, or $1,000 to $4,000 for a 1,000-square-foot attic.
What should an attic insulation bid include?
The R-value and depth, square footage, air sealing, baffles, any removal, and venting fixes, each priced so you can compare.
Can LG&E help pay for insulation?
Not through its general rebates. Income-qualified customers may get insulation through the WeCare program.
How much does it cost to remove old insulation?
$1 to $2 per square foot nationally, per HomeGuide, unless it's vermiculite, which is an asbestos job.
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.