Mildew is mold growing on a surface, and in a humid city like Tampa it shows up on shower ceilings, grout, window sills and closet walls. EPA says that if the moldy area is less than about 10 square feet, in most cases you can handle it yourself; larger areas, repeat growth or hidden moisture call for a professional. If yours is past that point, call the number on this page to be connected with a local mold remediation company in Tampa.

Start with the 10-square-foot line
EPA uses a simple cutoff: a moldy area under about 10 square feet, roughly a 3-foot by 3-foot patch, is in most cases something a homeowner can clean. Most bathroom ceiling spots, grout lines and window sill growth fall well under that. Above it, or where there has been a lot of water damage, EPA points to professional-level guidance.
Size isn't the only test. Get help even for a small patch if:
- It returns within weeks of cleaning, which usually means a leak or humidity problem you haven't found.
- It's on drywall, ceiling tile or carpet, which are porous and may need removal rather than cleaning.
- You smell mustiness but can't see the source, or the growth continues behind tile or a baseboard.
- It's near an AC vent or air handler. EPA says not to run an HVAC system you suspect is contaminated.
- You or someone in the home has asthma or a weakened immune system. EPA says those people should stay away from moldy areas.
Cleaning a small patch yourself
- Find the moisture first. In Tampa that is often a bathroom fan that's too weak or never used, a closet on an exterior wall with no airflow, or a leaking window frame.
- Wear gloves, goggles and an N-95 respirator, and open a window or run the fan.
- Scrub hard surfaces with detergent and water, then dry them completely. If you use a cleaning product, never mix bleach with ammonia.
- Throw out moldy items that are porous and can't be cleaned.
- Cut out and replace moldy caulk around the tub instead of sealing over it. EPA says not to paint or caulk over mold.

Where it shows up in Tampa homes
| Spot | Usual cause | Lasting fix |
|---|---|---|
| Shower ceiling and grout | Steam with weak exhaust | Run the fan during and after showers |
| Window sills | Condensation or frame leaks | Reseal frames, wipe condensation |
| Closets | Still air against warm exterior walls | Leave space behind clothes, keep doors open |
| Whole-house mildew smell | Indoor humidity too high | Keep humidity under 60 percent, check the AC |
When you hire it out
Angi reports bathroom mold remediation in Tampa typically costs $525 to $1,075. Price depends on whether drywall or tile has to come out and on how much containment the job needs. For small visible growth, EPA says testing usually isn't necessary. If you do order an assessment, Florida law means the assessor and the company that holds a Florida mold remediator license will normally be separate businesses.
Mold & Mildew Cleanup questions from Tampa homeowners
Is mildew the same thing as mold?
Can I just use bleach on bathroom mildew?
Why does mildew keep coming back in my Tampa bathroom?
Do I need mold testing for a small mildew spot?
Related mold services in Tampa
Mold & Mildew Cleanup in nearby cities and towns
Hillsborough County
Pinellas County
Pasco County
Manatee County
Sarasota County
Polk County
Sources
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