In Highlands, mildew on bathroom tile, closet walls or window frames is usually a surface problem a homeowner can clean, as long as the source of the dampness is dealt with too. Growth that has soaked into drywall, especially in homes near the river that have taken on water, should be looked at by a professional. Call the number on this page to be connected with a local mold remediation company in Highlands.
Local conditions in Highlands
Highlands is an unincorporated community of about 8,600 people in east Harris County, roughly 24 miles from downtown Houston. It began as an early-1900s rail stop on the higher east bank of the San Jacinto River and grew during World War II, when it housed military members and war-plant workers. The higher ground helps, but homes close to the river have flooded when it rises. In an October 2015 storm, an EF-0 tornado closed FM 2100 and the San Jacinto rose about six feet above normal, flooding some homes near the river. Add the Houston Ship Channel nearby, long humid summers and AC that runs most of the year, and indoor moisture is a constant job.
Clean it or call it in?
| Where you find it | Homeowner cleanup | Professional help |
|---|---|---|
| Tub caulk, shower grout or glass | Usually fine: detergent, water, brush, dry | Seldom needed |
| Painted bathroom ceiling, small patch | Fine if the paint is sound | If it returns within weeks |
| Inside a closet on an exterior wall | Clean and empty it, then improve airflow | If the drywall is stained through |
| Lower walls after river or storm water | Not recommended | Yes, insulation and wall cavity may be wet |
| More than about 10 square feet | EPA advises caution | Yes |
Signs to take seriously
- Spotting that returns in the same spot after a careful cleaning
- Paint that bubbles or peels on a wall shared with a bathroom
- A musty odor in a room with no visible growth
- Sweating windows or vent covers on most summer mornings
- Shoes, belts or luggage turning fuzzy in a closet that stays shut
Any of these means moisture is outpacing your cleaning, and the source is worth finding before the next scrub.
Seasonal notes
Mildew tends to peak from late spring through early fall, when humidity is highest and AC systems run nonstop. EPA recommends keeping indoor humidity below 60 percent, ideally 30 to 50 percent, and keeping AC drip pans clean and drain lines open. After any water gets in, dry materials within 24 to 48 hours. If a larger cleanup leads to new drywall, Highlands is unincorporated, so permits come from the Harris County Office of the County Engineer, and floodplain properties face additional requirements.
Mold & Mildew Cleanup questions in Highlands
Should I use bleach on mildew?
What indoor humidity should I aim for?
When is mildew too big a job to clean myself?
Will the county health department look at mildew in my home?
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