Mildew in a Union City home is usually a surface film that comes off hard surfaces with detergent and water, as long as you also fix whatever is keeping the area damp. If it covers more than about 10 square feet, grows on drywall or returns quickly, have a professional find the source. Call the number on this page to be connected with a local mold remediation company in Union City.

A short local introduction
Union City, incorporated in 1908 and nicknamed "The Progressive City," is about 12 miles southwest of downtown Atlanta. It is fully urban, with houses and apartment communities that all run air conditioning for much of the year. Mildew here usually tracks humidity and airflow rather than dramatic water events: a bathroom without a working fan, an air handler closet with a slow drain, or a closet against a warm outside wall. Apartment residents often notice it first on the ceiling of a top-floor bathroom or in the corner behind a bedroom door, where air barely moves. A few changes in routine stop most of it before it ever needs a professional.
Steps to take now
- Open the room up. Prop closet doors, pull furniture a few inches off exterior walls and run the bath fan longer.
- Check humidity with a hygrometer. The EPA target is below 60 percent, ideally between 30 and 50.
- Look for a source: a drip under the sink, a wet spot below the AC unit, or a ceiling stain from upstairs.
- Gear up with gloves and eye protection before you scrub.
- Clean tile, glass, plastic and sealed surfaces with detergent and water, then dry them well.
- Bag and discard porous items that still smell musty after cleaning.
- Do not paint over the spot. Paint traps the growth rather than removing it.

What you see and what usually causes it
| What you see | Likely cause |
|---|---|
| Speckled ceiling over the tub | Steam with nowhere to go |
| Musty carpet near the hall closet | Air handler drain pan overflowing |
| Dark spots behind a dresser | Stagnant air against an outside wall |
| Water ring on the ceiling plus spotting | Plumbing or roof leak above |
Cost factors
Angi's Atlanta cost guide reports bathroom mold work at about $587 to $1,174, and larger jobs at roughly $12 to $29 per square foot. Expect more if carpet, drywall or ductwork is involved; the same guide lists carpet replacement at about $910 to $3,052. If rebuilding is part of the job, the Union City Community Development Department's Building Permits Division handles construction permits and inspections, and renters can report unrepaired leaks to Union City Code Enforcement.
Mold & Mildew Cleanup questions in Union City
Does the color of the mildew tell me how bad it is?
Should I use bleach on mildew?
Can I hold back rent until the mildew is dealt with?
What does professional mildew cleanup cost?
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