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Mold Remediation in Jacksonville, FL

Jacksonville sits at the drier end of Florida's mold map, but crawlspaces, rental properties and storm season still produce steady work for the 257 verified companies serving Duval, St. Johns, Clay, Nassau counties. Expect $1,000–$3,875 for a typical remediation, less for a contained single-room problem, and around $425–$650 for the independent inspection that should usually come first. License checks on every card below are live, dated, and link to the state registry.

Mold remediation in Jacksonville, FL typically costs $1,000–$3,875 (median $2,125). Florida requires a state license for any job over 10 sq ft. 257 license- or cert-verified companies serve the Jacksonville area — each checked against the state registry, with the verification date shown.

Verified mold remediation companies in Jacksonville

Showing 30 of 257 verified in the area — each license checked against the state registry.

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30 results

+ 227 more verified companies in this area.

The Jacksonville market by the numbers (verified against the FL DBPR registry and certification bodies):
• 257 total verified companies within 35 miles
• 95 licensed remediators (MRSR) · 64 independent assessors (MRSA) · 98 firms licensed for both (legally barred from doing both on the same property within 12 months)
• 33 hold voluntary IICRC certification on top of their license · 45 are certified-only firms
• Primary counties: Duval · St. Johns · Clay · Nassau

What mold work costs in Jacksonville (2026)

ScenarioLow (25th %)Typical (median)High (75th %)
Typical remediation job$1,000$2,125$3,875
Bathroom$450$1,000$2,025
Basement / crawlspace$825$1,925$4,150
Attic$1,100$2,575$5,525
HVAC / ductwork$1,850$3,675$8,750
After a flood or major leak$2,300$5,050$11,050
Independent inspection + testing$225$425$650

Source: MoldVerified cost corpus — national datasets adjusted for the local market. Data refreshed 2026-06-03.

Why Jacksonville homes grow mold

Jacksonville's mold profile looks different from South Florida's: the metro's older neighborhoods (Riverside, Springfield, Murray Hill) carry pier-and-beam houses with vented crawlspaces that trap North Florida's humidity under the floor, while the St. Johns riverfront and coastal Duval add storm-surge exposure. Rental stock is a bigger share of the market here too — which means more landlord/tenant mold disputes than anywhere else in the state.

The rules are statewide: over 10 sq ft requires a Florida license, assessors and remediators are legally separated on the same property, and every company below carries a live, dated registry check.

What to expect

  1. 1

    Independent inspection & testing

    A licensed assessor maps how far the mold has spread and takes air or surface samples. In Florida this assessor legally can't be the company that does the removal, so the findings have no upsell behind them.

  2. 2

    Containment

    The work area is sealed off with plastic sheeting and put under negative air pressure, so spores disturbed during removal can't drift into the rest of the home.

  3. 3

    Removal of contaminated porous material

    Drywall, insulation, carpet, and other porous materials the mold has grown into are cut out and bagged. Hard, non-porous surfaces are cleaned in place; porous ones can't be reliably saved.

  4. 4

    Drying & HEPA air scrubbing

    HEPA-filtered scrubbers and dehumidifiers run until the area is dry and the air is clear. This step, plus fixing the original moisture source, is what keeps the mold from returning.

  5. 5

    Independent clearance test

    A party other than the remediator re-tests the air and surfaces to confirm the levels are back to normal. A passing clearance report is your proof the job actually worked — and the document a buyer or lender will ask for.

Do I have to move out?

Most homeowners stay put. A licensed crew seals off the work area, so the rest of the house stays usable while the job runs.

Plan to leave only if one of these is true:

  • the affected area is larger than about 30 square feet
  • the HVAC system is involved (it can move spores through the whole house)
  • someone in the home has asthma, is immunocompromised, or is pregnant

Re-entry is typically 24–48 hours after a passing independent clearance test. Ask your remediator for their containment plan and expected timeline up front — a clear answer is a good sign.

Common questions

›What should I expect to pay for mold remediation in Jacksonville?

Typical range in Jacksonville: $1,000–$3,875 (median $2,125). Contained single-room work runs well under that; flood-driven or HVAC-spread contamination runs over. Spending $225–$650 on an independent inspection first is usually the cheapest decision in the whole project.

›Does homeowners insurance cover mold remediation in Florida?

Only for sudden, accidental water events in most policies — and Florida insurers enforce that line strictly, often with a $10,000 mold cap on top. Humidity and slow-leak mold is normally on you. Before anyone starts cleanup in your Jacksonville home, photograph the damage and the water source; our claim guide covers the rest.

›Do I need a licensed mold remediator in Jacksonville?

Florida requires it above 10 sq ft — and unlike most states it splits the industry in two: assessors (MRSA, 64 verified in the Jacksonville area) and remediators (MRSR, 95 verified). The firm that diagnoses can't take the removal job on the same property within a year. Check any license number yourself at the state registry link on each card.

›Can I remove the mold myself?

The honest answer most companies won't give: yes, for small patches (under ~10 sq ft) on non-porous surfaces with the moisture fixed. Save your money. It stops being DIY when drywall or insulation is contaminated, when it keeps returning, or when the smell has no visible source — that's hidden-cavity territory and worth a $225–$650 assessment.

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