1

In Manhattan Beach, Redondo Beach, El Segundo, and the surrounding South Bay neighborhoods, it’s extremely common for homeowners to find mold on:

• Clothes
• Shoes
• Purses
• Jackets
• Leather goods

Even when the drywall, flooring, and framing are completely dry.

This isn’t a leak.

It’s a humidity and airflow issue, caused by our coastal micro‑climate.

Closets trap moisture because they are small, enclosed, and often built against cool exterior walls. Without airflow especially in homes without air conditioning humidity can quietly rise to 60–70%, which is enough for mold to grow on organic materials.

2

HomeDry performs a full, professional inspection to determine whether the issue is humidity or something structural.

We check:

• Moisture in drywall
• Moisture in flooring
• Moisture in baseboards
• Humidity inside the closet vs. the room
• Temperature differences on exterior walls
• Airflow restrictions inside the closet
• 
  

If all structural materials are dry and mold is only on clothing, the cause is airborne humidity, not water damage.

This is extremely common in South Bay beach cities.

3

Every home is different, but most closet mold issues come from a combination of:

Coastal humidity

Marine layer, fog, and cool nights create moisture‑rich air that gets trapped indoors.

Poor airflow inside closets

Closed doors + packed clothing = stagnant, humid air.

Exterior‑wall closets

Many closets sit on cold stucco or north‑facing walls, causing condensation.

Clothing that absorbs moisture

Cotton, denim, leather, and wool act like sponges.



Your HomeDry technician will identify which factors apply to your home.

4

How to Fix Closet Mold

Once we confirm the issue is humidity, not a leak, the solution is simple and non‑invasive.

Improve airflow

• Keep the closet door cracked
• Add a louvered door
• Use a small battery‑powered fan
• 
  

Reduce humidity

A small, consumer‑grade closet dehumidifier works extremely well.

These are inexpensive and designed for small enclosed spaces.

Improve whole‑home ventilation

• Run bathroom fans after showers
• Use the kitchen hood when cooking
• Keep HVAC fan on “circulate” (if you have AC)

For persistent cases

• Add a passive vent or transfer grille
• Install a whole‑home dehumidifier (rarely needed in South Bay)

Not sure if your closet mold is humidity or a leak? We can tell you in minutes.

5

We Can

• Confirm whether the issue is humidity or structural
• Measure moisture and humidity levels
• Identify airflow and temperature issues
• Provide a clear, simple plan to stop mold from returning
• Document conditions if needed

We Cannot

• Guarantee mold will not return if humidity remains high
• Modify HVAC systems
• Interpret insurance policies (closet humidity is not an insurance claim)
• 

Our goal is to give you clarity, reassurance, and a practical solution.

6

If mold is limited to clothing and the structural materials in your home are dry, the good news is that most items can be cleaned and saved.

Here are simple, safe steps homeowners can take:

Washable Clothing

• Wash items in warm water with regular detergent
• Add a cup of white vinegar to help remove odor
• Dry items completely in sunlight or a dryer
• Repeat if needed for heavier fabrics like denim or cotton jackets

Delicate Fabrics

For silk, wool, cashmere, or anything labeled “dry clean only,” take the item to a professional cleaner and let them know it was exposed to humidity‑related mold.

Leather Goods (shoes, bags, belts)

• Wipe the surface with a slightly damp cloth
• Allow to dry fully
• Apply a leather conditioner afterward

Items That Cannot Be Saved

If an item has:

• Heavy staining
• A strong musty odor that doesn’t wash out
• Visible deterioration

…it may be best to discard it.



HomeDry can help you determine what’s salvageable during your assessment.

7

Closet mold is frustrating but it’s extremely common in coastal homes, and the fix is usually simple.

HomeDry is here to give you answers, protect your home, and help you stop the problem for good.