Why mold is common in New Orleans
New Orleans Lakefront Airport averages about 60 inches of precipitation a year under NOAA's 1991–2020 normals, and every month but two brings more than 4 inches. Heavy summer downpours can flood streets faster than the drainage system clears them, and humid air from spring through fall keeps damp materials from drying.
The housing splits in two. Older neighborhoods such as Uptown, the Irish Channel, Mid-City, Tremé, and the Bywater are full of shotguns, Creole cottages, and doubles raised on piers, where air moves under the floor but humid summer air condenses on joists and ducts. Neighborhoods built later, including much of Lakeview, Gentilly, and New Orleans East, are more often on slabs closer to the ground. About 74% of the city's homes were built before 1980, and about 31% before 1940, according to the Census Bureau.
Hurricanes add the rest. After Katrina in 2005, about 80% of the city flooded. In 2021, Hurricane Ida took out all eight transmission lines into the city, and Entergy reported that all of Orleans Parish lost power, leaving houses shut and without air conditioning in late-summer heat. When a home cannot be dried in a day or two, as the EPA advises, mold is the usual result.
Source: NOAA climate normals
Mold services in New Orleans
What mold work costs in Orleans Parish
| Service | Typical range |
|---|---|
| Mold inspection, national range | $300–$1,000 |
| Lab sample, per sample (national) | $50–$350 |
| Typical remediation job (national) | $1,100–$3,400 |
Local mold pricing for New Orleans is not published in a form we can rely on, so the ranges above are national: Angi's inspection data and HomeGuide's figures for lab samples and typical remediation. After a hurricane or a flood, a single house can easily pass $7,500 once drywall, insulation, and flooring come out together, and above that amount Louisiana requires a licensed mold remediator. Rebuilding is priced on its own. Our remediation cost guide explains the line items.
Louisiana mold licensing: what to check
New Orleans homeowners have something most states do not offer: a mold license to check. Any mold remediation job worth more than $7,500 must be done by a company with the Mold Remediation classification from the Louisiana State Licensing Board for Contractors, and its qualifying party must have 24 hours of board-approved mold training. Look it up in the LSLBC license search and ask for that classification by name.
From August 1, 2026, licensees must carry at least $500,000 in liability insurance, so ask for the certificate. After a hurricane, crews from out of state arrive quickly; the license search is the fastest way to sort them. In historic districts, exterior repairs may also need review by the city's Historic District Landmarks Commission. See the Louisiana page.
Will insurance cover it?
In New Orleans, the claim usually turns on wind versus water. Rain driven through a roof or window damaged in a hurricane is usually a homeowners claim, typically with a separate hurricane deductible and a limit on mold. Water that rose in the street during a downpour, or storm surge from the lake or the river, is flood water and needs a flood policy.
After a long outage like Ida's, insurers often ask whether the home was dried as soon as possible, so keep receipts for generators, fans, and dehumidifiers, and photograph damage before anything is removed. The Louisiana Department of Insurance takes complaints. See does insurance cover mold.
Areas we connect you in
Uptown, Garden District, Irish Channel, Mid-City, Tremé, Marigny, Bywater, Lakeview, Gentilly, Broadmoor, Carrollton, New Orleans East, Algiers, and surrounding neighborhoods of New Orleans.