Mold Inspection & Remediation in Jacksonville, FL

Jacksonville averages about 53.4 inches of rain a year under NOAA's 1991–2020 normals, about an inch more than the previous 30-year average, with the wettest stretch from June through September. Winters are cooler than in South Florida, but summers are just as humid, and the St. Johns River, its creeks, and the coastal marshes keep moisture close to many neighborhoods.

River flooding is Jacksonville's signature risk. When Hurricane Irma passed about 100 miles west of the city in September 2017, onshore winds and heavy rain pushed the St. Johns River to a record crest; downtown streets turned into rivers, and homes in San Marco and other riverfront neighborhoods flooded. Water that sits in a home even for a day soaks drywall, insulation, and flooring.

Jacksonville covers more land than any other city in the continental United States, so its housing varies widely, from early 1900s homes in Riverside, Avondale, and Springfield to newer subdivisions on the Southside. Older raised homes can have crawl spaces where moisture collects under the floor, while newer slab homes are more likely to hide leaks behind walls and around AC closets.

Our inspection numbers are homeowner reports from Ponte Vedra Beach, the closest area with published data; the cleanup ranges are Florida-wide contractor figures for 2025 and 2026. Two Jacksonville jobs tend to cost more than the table suggests: crawl spaces under older homes, and houses that took river water. See our mold remediation cost guide.

Duval County has far fewer licensed mold professionals than South Florida, so it helps to line up an assessor early, especially after a storm. Whoever you call, confirm the license on myfloridalicense.com: Florida requires a DBPR mold assessor or mold remediator license for most jobs over about 10 square feet, plus $1 million in liability coverage.

In older Riverside, Avondale, and Springfield homes, where crawl spaces and plaster walls are common, ask how the assessor will check under the floor and inside walls. The assessor and the remediator should be different companies; Florida generally keeps an assessor from cleaning up a home it inspected for a year.

River and storm flooding are not covered by a standard homeowners policy; they need a flood policy. Water that enters through storm damage to the roof or windows may be covered by homeowners insurance, with mold paid up to your policy's mold limit, often $10,000. Mold from long-term humidity or a damp crawl space is usually treated as a maintenance issue.

Duval County owners have one year from the date of loss to report a new claim under Florida law, and for a hurricane the count starts at landfall. Our guide on insurance and mold explains the details.