By Super Green Environmental — Licensed Mold Assessor #MRSA2418, serving Broward, Miami-Dade, and Palm Beach counties
Quick answer: If king tide water got into your home, garage, or crawl space, you have about 24–48 hours to dry wet materials before mold is likely to start growing. If anything stayed wet longer than that — or you notice a musty smell in the days after — a mold inspection with air sampling will tell you whether a problem is starting behind the walls.
King tides are happening right now
The City of Fort Lauderdale expects higher-than-normal tides from September 26 through October 1, with peaks around mid-morning and late evening each day (City of Fort Lauderdale). This weekend, flooding was already reported along Hollywood’s Broadwalk and in parts of Fort Lauderdale (Sun Sentinel).
And this isn’t the last round. The City of Hollywood lists more king tide windows on October 7–13, October 24–31 (peaking October 27), November 5–11, November 22–28, and December 5–8 (City of Hollywood). Homes near the Intracoastal, canals, and the beach can see water again and again this fall.
Why king tide water is a mold risk
Tidal water doesn’t have to come through the front door to cause trouble. We most often see moisture problems from:
- Water pushing into garages and ground-floor rooms through door thresholds and low slabs
- Wet drywall and baseboards that wick water upward — sometimes 12 inches or more above the flood line
- Soaked carpet and padding that feels dry on top but stays wet underneath
- Raised humidity throughout the home after repeated flooding, especially if windows are left open or the AC can’t keep up
- Seawall and foundation seepage that shows up days later as damp spots or a musty odor
The EPA says wet or damp materials should be dried within 24–48 hours — in most cases, mold won’t grow if they are (EPA). In South Florida’s heat and humidity, that window is tight.
What to do in the first 48 hours
- Stay safe. Tidal water can carry sewage and debris. Wear gloves and boots, and keep kids and pets away.
- Photograph everything before you clean up — the water line, damaged materials, and belongings. You may need it for insurance.
- Remove standing water and pull up wet rugs, carpet, and padding.
- Run the AC and dehumidifiers and keep windows closed so outside humidity doesn’t slow drying.
- Check the bottom of walls and cabinets. Soft, swollen, or stained drywall and baseboards usually need to come out.
- Don’t paint or caulk over damp or stained areas. It hides the problem instead of fixing it.
When to call for a mold test
A mold inspection makes sense if:
- Water sat on floors or against walls for more than 48 hours
- You smell something musty in the days or weeks after the tide recedes
- You see new staining, bubbling paint, or warped baseboards
- Anyone in the home has new allergy-type symptoms like congestion, headaches, or coughing
- You need documentation for an insurance claim or a landlord dispute
- You’re about to close up walls or install new flooring and want to make sure everything is dry and clean first
What a post-flood inspection includes
As a Florida licensed mold assessor, our job is to find out what’s actually going on — not to guess. A typical post-flood visit includes:
- Moisture meter and thermal imaging readings to find wet materials you can’t see
- Air sampling inside and outside the home, analyzed by an accredited lab, to show whether mold spore levels are elevated
- Surface samples where we see suspected growth
- A written, lab-certified report in 24–48 hours explaining what we found and what needs attention
If remediation is needed, we can write a remediation protocol so any contractor you hire knows exactly what to remove — and we can come back afterward to confirm the work passed. Learn more about our mold testing and insurance and legal support.
Serving flooded neighborhoods now
We’re scheduling post-flood inspections across Hollywood, Fort Lauderdale — including Victoria Park, Rio Vista, and Coral Ridge — and the rest of Broward County.
Had king tide water in your home? Call 833-431-6653 or request an inspection.