What does attic insulation cost in Minneapolis–St. Paul?
Start with national prices, then subtract a rebate that, in the Twin Cities, can be large relative to the job.123
National average
$1,000–$2,700
HomeGuide's national average range for insulating an attic, with small jobs from $500 and large ones up to $6,000.1
Blown-in cost per 1,000 sq ft 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).4 R-49 matters here because both local rebates require it.23
Worked examples with rebates
Air sealing runs $350 to $3,000 nationally.1 Assume a project with $1,500 of air sealing and $1,900 of R-49 insulation on 1,000 sq ft (our illustration, using the HomeGuide ranges above).
| If your heat comes from | Rebate on that project |
|---|---|
| Xcel Energy | $600 (40% of $1,500, at the cap) + $760 (40% of $1,900) = $1,360 |
| CenterPoint Energy (gas) | $1,300 flat for air sealing + qualifying insulation |
Our arithmetic on the program rules; Xcel caps are $600 for air sealing and $1,200 for attic insulation.23 Rebates depend on qualifying before-and-after R-values and test results, and the program and contractor decide the final amounts.
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Get my free quoteTakes under a minuteRemoval and replacement
Replacing attic insulation costs $2 to $6 per square foot nationally, including $1 to $2 per square foot to remove the old material.1 On a 1,000-square-foot attic floor, that's $2,000 to $6,000 (our arithmetic). Some insulation companies set a $1,500 to $2,000 minimum.4
Other line items
- Soffit baffles: $2 to $3 each.1
- Venting bath fans or other exhausts outdoors before insulating; a roof vent runs $200 to $700.1
- Asbestos testing $250 to $850, and removal $10 to $25 per square foot, if hazardous material is found.1
Common questions
How much does attic insulation cost in Minneapolis?
No local survey exists. HomeGuide's national average is $1,000 to $2,700; blown-in insulation to R-49 runs $1,100 to $1,900 per 1,000 square feet nationally.
How much can an Xcel rebate cover?
Up to 40% of attic insulation cost (max $1,200) and 40% of air sealing (max $600), when both are done together by a participating contractor.
What does CenterPoint pay for attic insulation in 2026?
$1,300 for air sealing plus insulation from R-30 or lower to R-49 or higher, or $750 for air sealing alone.
Does air sealing cost extra?
Usually. HomeGuide's national range is $350 to $3,000, and some contractors include it in an insulation estimate.
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
- HomeGuide, "Attic Insulation Cost" (national figures, Jan. 13, 2026)
- Xcel Energy, "Minnesota 2024–2026 Residential Rebate Summary" (PDF)
- CenterPoint Energy, "2026 Air Sealing and Insulation Rebate Application" (Minnesota, CNP-1110, PDF)
- HomeGuide, "Blown-In Insulation Cost" (national figures, Nov. 5, 2025)
- U.S. EPA, "Protect Your Family from Asbestos-Contaminated Vermiculite Insulation"