- Mold remediation usually costs $1,200 to $3,750, about $2,350 typical.
- Removing mold from an affected area and treating the cause.
- Price your own job with the calculator above; it breaks the job into lines.
What mold remediation costs
Expect mold remediation to cost between $1,200 and $3,750, with $2,350 as a typical figure. Removing mold from an affected area and treating the cause.
| Price | |
|---|---|
| Low end | $1,200 |
| Typical | $2,350 |
| High end | $3,750 |
The range blends Fixr, HomeAdvisor, Bob Vila and This Old House (method below). Where you live matters: Koira's estimate is $2,026 in Arkansas and $2,892 in Hawaii.
What drives the price
- Area. This Old House says $10 to $25 a square foot, $500 to $1,500 for small areas.
- Where it is. Attics, crawl spaces and inside walls cost more to reach.
- The cause. Leaks and humidity must be fixed or the mold returns.
- Rebuild. Replacing drywall and insulation adds cost.
Mold remediation cost by area
| Area | Price | Source |
|---|---|---|
| Air ducts | $600 to $2,000 | Bob Vila |
| Attic | $1,000 to $4,000 | Bob Vila |
Extra costs to plan for
| Item | Price | Source |
|---|---|---|
| Testing | $250 to $800 | HomeAdvisor |
These often show up as separate lines. When you compare mold remediation quotes, line them up item by item.
Mold remediation cost by state
Koira estimates for each state, built from the national $1,200 to $3,750. About 60% of a mold remediation price is labor, and only that part is scaled by the state's median wage for construction and extraction workers. A starting point, not a quote.
| State | Low | Typical | High |
|---|---|---|---|
| Alabama | $1,058 | $2,072 | $3,307 |
| Alaska | $1,394 | $2,731 | $4,357 |
| Arizona | $1,182 | $2,314 | $3,693 |
| Arkansas | $1,035 | $2,026 | $3,233 |
| California | $1,347 | $2,637 | $4,208 |
| Colorado | $1,220 | $2,389 | $3,812 |
| Connecticut | $1,346 | $2,636 | $4,207 |
| Delaware | $1,198 | $2,346 | $3,743 |
| District of Columbia | $1,328 | $2,600 | $4,149 |
| Florida | $1,077 | $2,109 | $3,365 |
| Georgia | $1,082 | $2,119 | $3,381 |
| Hawaii | $1,477 | $2,892 | $4,615 |
| Idaho | $1,159 | $2,270 | $3,622 |
| Illinois | $1,454 | $2,848 | $4,545 |
| Indiana | $1,228 | $2,405 | $3,837 |
| Iowa | $1,199 | $2,348 | $3,747 |
| Kansas | $1,145 | $2,242 | $3,577 |
| Kentucky | $1,123 | $2,198 | $3,508 |
| Louisiana | $1,084 | $2,122 | $3,387 |
| Maine | $1,209 | $2,368 | $3,779 |
| Maryland | $1,204 | $2,358 | $3,763 |
| Massachusetts | $1,417 | $2,775 | $4,427 |
| Michigan | $1,220 | $2,389 | $3,812 |
| Minnesota | $1,358 | $2,659 | $4,243 |
| Mississippi | $1,046 | $2,048 | $3,268 |
| Missouri | $1,226 | $2,402 | $3,833 |
| Montana | $1,217 | $2,383 | $3,803 |
| Nebraska | $1,130 | $2,214 | $3,532 |
| Nevada | $1,226 | $2,402 | $3,833 |
| New Hampshire | $1,207 | $2,363 | $3,770 |
| New Jersey | $1,368 | $2,679 | $4,276 |
| New Mexico | $1,083 | $2,121 | $3,385 |
| New York | $1,331 | $2,607 | $4,160 |
| North Carolina | $1,077 | $2,110 | $3,366 |
| North Dakota | $1,220 | $2,388 | $3,811 |
| Ohio | $1,231 | $2,412 | $3,848 |
| Oklahoma | $1,068 | $2,091 | $3,337 |
| Oregon | $1,279 | $2,506 | $3,998 |
| Pennsylvania | $1,212 | $2,373 | $3,787 |
| Rhode Island | $1,242 | $2,433 | $3,882 |
| South Carolina | $1,079 | $2,114 | $3,373 |
| South Dakota | $1,086 | $2,127 | $3,394 |
| Tennessee | $1,091 | $2,136 | $3,409 |
| Texas | $1,075 | $2,104 | $3,358 |
| Utah | $1,171 | $2,293 | $3,660 |
| Vermont | $1,202 | $2,354 | $3,757 |
| Virginia | $1,163 | $2,277 | $3,633 |
| Washington | $1,393 | $2,728 | $4,353 |
| West Virginia | $1,177 | $2,304 | $3,677 |
| Wisconsin | $1,250 | $2,447 | $3,905 |
| Wyoming | $1,203 | $2,355 | $3,758 |
Rural areas and cities in the same state can differ a lot.
How we got these numbers
| Guide | Range | Average | Use |
|---|---|---|---|
| Fixr | $1,500 to $9,000 | $3,500 | Counted |
| HomeAdvisor | $1,223 to $3,757 | $2,368 | Counted |
| Bob Vila | $1,125 to $3,439 | $2,254 | Counted |
| This Old House | $1,200 to $3,750 | $2,300 | Counted |
We take the middle of the guides' lows for the low end, the middle of their highs for the high end, and the middle of their averages for the typical mold remediation price. Where a guide gives no average we use its midpoint. All read on October 9, 2026.
Labor share used: 60%. None of the guides splits labor out for this job, so this share is Koira's working assumption for water, fire and mold work. State factor: the state's median hourly wage for construction and extraction workers over the national $28.63 (BLS, May 2025), kept between 0.7 and 1.4.
For contractors: price this job in Koira
Restoration calls come at night and on weekends, so answering fast is most of the job.
Run the numbers for a real mold remediation in the free mold remediation cost calculator, then save the result as an estimate. On Koira's free Office plan you build the estimate, text it, collect the deposit and turn it into an invoice when the mold remediation is done. Price this job in Koira, free.
Sources: Fixr, mold remediation cost; HomeAdvisor, mold remediation cost; Bob Vila, mold remediation cost; This Old House, mold remediation cost; BLS Occupational Employment and Wage Statistics, May 2025 (state and national files). Prices checked October 9, 2026. More for your trade: how the trade runs on Koira.