Start here
Quick, low-risk steps
- Stop the water source if you can do so safely.
- Remove standing water with a wet/dry vacuum or pump.
- Use fans and dehumidifiers to dry the area, but only if no mold is visible.
- Discard porous materials that were soaked and cannot be thoroughly dried.
- Record where and when moisture appeared and take photos for documentation.
- If mold is visible or the area is large, contact a Florida-licensed mold assessor.
Immediate Actions After Water Damage
The first step is to stop the water source if it is safe to do so. This could mean turning off a water valve or containing a leak. Once the source is controlled, remove standing water as quickly as possible using a wet/dry vacuum or pump. The longer materials stay wet, the higher the chance of mold growth.
After removing water, increase air circulation with fans and dehumidifiers. Open windows if outdoor humidity is low. However, do not use fans if you see mold, as this can spread spores to other areas. Focus on drying within a short timeframe to prevent mold from starting.
- Stop the water source safely.
- Remove standing water promptly.
- Use fans and dehumidifiers only if no mold is visible.
- Open windows if outdoor humidity is low.
- Discard water-damaged porous items that cannot be dried.
What Not to Do
Avoid disturbing large or hidden areas of mold. If you suspect mold behind walls or under flooring, do not tear out materials yourself. This can release a large amount of spores into the air and spread contamination. Instead, contain the area and seek professional assessment.
Do not apply biocides or disinfectants as a routine practice. The EPA notes that it is not generally recommended to use these chemicals for mold cleanup. Focus on removing the moisture and cleaning or discarding affected materials. If you choose to use a cleaning product, follow label directions and ensure adequate ventilation.
- Do not disturb large or hidden mold areas.
- Avoid using fans if mold is visible.
- Do not routinely apply biocides or disinfectants.
- Do not ignore moisture in HVAC systems.
- Do not delay drying; mold can start quickly.
When to Call a Florida-Licensed Professional
Certain situations require a professional. If the water damage involves sewage or contaminated floodwater, there are health risks that need specialized handling. If mold is inside your HVAC system, running it could spread spores throughout your home. A large hidden area or structural cavity affected by moisture also warrants professional assessment.
If anyone in the home has symptoms like respiratory issues or has a medical vulnerability, consult a clinician and avoid exposure. In these cases, a Florida-licensed mold assessor can evaluate the extent of the problem and a licensed remediator can safely remove the mold. Always verify licenses through the Florida Department of Business and Professional Regulation.
- Sewage or contaminated floodwater is involved.
- Mold may be inside HVAC equipment.
- A large hidden area or structural cavity is affected.
- An occupant has symptoms or a medical vulnerability.
- Verify professional licenses at myfloridalicense.com.
Drying and Documentation
Proper drying is key to preventing mold. Use moisture meters to check that materials like wood and drywall are dry before rebuilding. Keep records of where and when moisture appeared, and take photos before, during, and after cleanup. This documentation can be useful for insurance claims or professional consultations.
Remember that drying alone may not be enough if mold has already started. If you see or smell mold, it is time to stop DIY efforts and call a professional. A Florida-licensed mold assessor can provide a protocol for remediation, and a remediator can perform the work following industry standards.
- Use moisture meters to confirm dryness.
- Document moisture locations and timing.
- Take photos for insurance or professional use.
- Stop DIY if mold is visible or smells musty.
- Contact a licensed assessor for a remediation plan.
Take this with you
Evidence and scope checklist
- Was the water source stopped safely?
- Is the water clean or contaminated?
- Is the affected area small and manageable?
- Is mold visible or suspected in hidden spaces?
- Is the HVAC system involved?
- Are there any occupant health concerns?
- Have you documented the damage with photos?
- Have you verified a professional's Florida license?
Common questions
What homeowners ask next
How quickly can mold grow after water damage?
Mold can begin to grow on damp materials within a short time. The EPA recommends drying water-damaged areas and items promptly to prevent mold growth.
Can I clean mold myself after a small water leak?
For small areas on non-porous surfaces, you may clean it yourself using water and detergent. However, if the area is large, hidden, or involves porous materials, it is safer to hire a Florida-licensed professional.
Should I use bleach to kill mold after water damage?
The EPA does not recommend routine use of biocides like bleach for mold cleanup. The key is to remove the moisture and clean or discard affected materials. If you use a cleaning product, follow the label and ensure good ventilation.
Evidence
Sources used for this guide
Research checked July 31, 2026
- Mold CleanupU.S. Environmental Protection Agency
Moisture control, cleanup considerations, and professional-escalation context.
- Mold control and preventionOccupational Safety and Health Administration
Workplace mold-control principles; not a remote health or species diagnosis.
- Mold-related services licensingFlorida Department of Business and Professional Regulation
Current Florida license and role lookup; verify immediately before referral.
Optional next step
Need an on-site professional?
Use the guide and worksheet first so you can describe the situation and compare the full scope. A referral is optional; you can also contact a licensed local provider directly.
We have not enabled a provider route for this site. Use the checklist to contact and verify local providers yourself; urgent hazards should go to the appropriate emergency or public service.