What does attic insulation cost in San Antonio?
CPS Energy's per-square-foot rebate scales with your attic, so it's easy to estimate before you get quotes.1
CPS Energy
$0.35/sq ft
The contractor-installed attic insulation rebate; self-installed is $0.25/sq ft.1
Blown-in cost by R-value
| R-value | Min. thickness | National cost per 1,000 sq ft |
|---|---|---|
| R-38 | 13.0 in | $840–$1,500 |
| R-49 | 16.5 in | $1,100–$1,900 |
| R-60 | 20.0 in | $1,400–$2,400 |
Source: HomeGuide (national, blown-in).2
Net cost examples
| Attic size, to R-38 | National price2 | CPS rebate at $0.35 | Net (our arithmetic) |
|---|---|---|---|
| 1,000 sq ft | $840–$1,500 | $350 | $490–$1,150 |
| 1,500 sq ft | $1,260–$2,250 | $525 | $735–$1,725 |
| 2,000 sq ft | $1,680–$3,000 | $700 | $980–$2,300 |
Larger-attic prices are our scaling of HomeGuide's per-1,000 sq ft figure.21
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- Air sealing: $350 to $3,000 nationally.3
- Removing old insulation: $1 to $2 per sq ft.3
- Soffit baffles: $2 to $3 each.3
- Minimum job charges of $1,500 to $2,000 at some companies.2
Common questions
How much does attic insulation cost in San Antonio?
No local survey exists. HomeGuide's national blown-in price to R-38 is $840 to $1,500 per 1,000 square feet, before CPS Energy's rebate.
What is the CPS rebate on a 1,500 sq ft attic?
$525 at the contractor-installed rate of $0.35 per square foot (our arithmetic).
Can I install it myself?
Yes, at $0.25 per square foot, with photos of the attic floor and a ruler showing depth.
Is there still a federal tax credit for insulation?
No. The IRS says the Energy Efficient Home Improvement Credit covers 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.