United States calculator
Insulation Cost Calculator
Estimate the cost to insulate an attic, walls, or crawlspace. Adjust the area, the insulation material, and whether you add a vapor/air barrier or remove old insulation to see an itemized low-high range for your project.
How this calculator is built
Unit costs with sources
This model cites 6 sources across line-item unit costs, regional labor data, and tax references.
Regional labor adjustment
The state table applies local labor indexes only to labor-heavy line items.
Published methodology
The methodology page lists the formula, size drivers, labor model, and source links.
Estimate your project
Change the default inputs to match your scope. The breakdown updates by line item.
Insulation Cost by state: typical ranges
Each range applies that state's labor index to the labor-share line items of the default project; materials stay at national prices. Select a state for its full local breakdown and calculator.
| State | Typical range | Labor index | Permit |
|---|---|---|---|
| Alabama | $1,474–$2,737 | 75% | Usually none |
| Alaska | $1,870–$3,473 | 123% | Usually none |
| Arizona | $1,597–$2,967 | 90% | Usually none |
| Arkansas | $1,498–$2,783 | 78% | Usually none |
| California | $1,845–$3,427 | 120% | Usually none |
| Colorado | $1,688–$3,135 | 101% | Usually none |
| Connecticut | $1,721–$3,197 | 105% | Usually none |
| Delaware | $1,647–$3,059 | 96% | Usually none |
| Florida | $1,515–$2,813 | 80% | Usually none |
| Georgia | $1,490–$2,767 | 77% | Usually none |
| Hawaii | $1,953–$3,626 | 133% | Usually none |
| Idaho | $1,556–$2,890 | 85% | Usually none |
| Illinois | $1,862–$3,457 | 122% | Usually none |
| Indiana | $1,672–$3,105 | 99% | Usually none |
| Iowa | $1,581–$2,936 | 88% | Usually none |
| Kansas | $1,606–$2,982 | 91% | Usually none |
| Kentucky | $1,548–$2,875 | 84% | Usually none |
| Louisiana | $1,507–$2,798 | 79% | Usually none |
| Maine | $1,647–$3,059 | 96% | Usually none |
| Maryland | $1,721–$3,197 | 105% | Usually none |
| Massachusetts | $1,853–$3,442 | 121% | Usually none |
| Michigan | $1,639–$3,043 | 95% | Usually none |
| Minnesota | $1,738–$3,227 | 107% | Usually none |
| Mississippi | $1,474–$2,737 | 75% | Usually none |
| Missouri | $1,672–$3,105 | 99% | Usually none |
| Montana | $1,606–$2,982 | 91% | Usually none |
| Nebraska | $1,548–$2,875 | 84% | Usually none |
| Nevada | $1,730–$3,212 | 106% | Usually none |
| New Hampshire | $1,663–$3,089 | 98% | Usually none |
| New Jersey | $1,763–$3,273 | 110% | Usually none |
| New Mexico | $1,581–$2,936 | 88% | Usually none |
| New York | $1,812–$3,365 | 116% | Usually none |
| North Carolina | $1,490–$2,767 | 77% | Usually none |
| North Dakota | $1,581–$2,936 | 88% | Usually none |
| Ohio | $1,639–$3,043 | 95% | Usually none |
| Oklahoma | $1,482–$2,752 | 76% | Usually none |
| Oregon | $1,746–$3,243 | 108% | Usually none |
| Pennsylvania | $1,647–$3,059 | 96% | Usually none |
| Rhode Island | $1,663–$3,089 | 98% | Usually none |
| South Carolina | $1,548–$2,875 | 84% | Usually none |
| South Dakota | $1,498–$2,783 | 78% | Usually none |
| Tennessee | $1,531–$2,844 | 82% | Usually none |
| Texas | $1,498–$2,783 | 78% | Usually none |
| Utah | $1,548–$2,875 | 84% | Usually none |
| Vermont | $1,630–$3,028 | 94% | Usually none |
| Virginia | $1,548–$2,875 | 84% | Usually none |
| Washington | $1,853–$3,442 | 121% | Usually none |
| West Virginia | $1,490–$2,767 | 77% | Usually none |
| Wisconsin | $1,672–$3,105 | 99% | Usually none |
| Wyoming | $1,597–$2,967 | 90% | Usually none |