What does attic insulation cost in Detroit?
Start from national prices, then subtract DTE's flat $600 attic rebate if DTE heats your home.12
National average
$1,000–$2,700
HomeGuide's national average range for insulating an attic.1 DTE's $600 attic rebate comes off that if you qualify.2
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).3
Worked example
| 1,000 sq ft attic to R-60 | Amount |
|---|---|
| National blown-in price3 | $1,400–$2,400 |
| DTE roof and attic rebate2 | −$600 |
| Net (our arithmetic) | $800–$1,800 |
| Add $250 Do More bonus if a second measure is installed Sept. 15–Dec. 15, 20262 | −$250 more |
Rebates are first-come, first-served and depend on DTE's eligibility rules.2
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- Air sealing: $350 to $3,000 nationally.1
- Removing old insulation: $1 to $2 per sq ft.1
- Soffit baffles: $2 to $3 each.1
- Minimum job charges of $1,500 to $2,000 at some companies.3
Cheap add-on measures
For the bonus, the smallest second measures in DTE's chart are kneewall insulation (100 sq ft minimum) and rim/band joist insulation (50 sq ft minimum and all accessible rim joists).2
Common questions
How much does attic insulation cost in Detroit?
No local survey exists. HomeGuide's national average range is $1,000 to $2,700, and DTE's $600 attic rebate comes off that for eligible customers.
What does R-60 cost on a 1,000 square foot attic?
$1,400 to $2,400 nationally for blown-in, per HomeGuide, or about $800 to $1,800 after DTE's $600 rebate (our arithmetic).
When is the DTE rebate deadline?
Applications must arrive within 6 months of purchase and no later than December 31, 2026.
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.