Resources
What Causes Mold to Grow Indoors
Mold needs three things to grow: moisture, an organic food source, and time. Understanding the causes helps you prevent it.
Excess moisture
Leaks, flooding, humidity, and condensation are the most common culprits. Relative humidity above 60% is often enough to support growth.
Poor ventilation
Bathrooms, kitchens, and laundry rooms without adequate exhaust trap moisture indoors.
Roof and plumbing leaks
Slow, hidden leaks can support significant growth long before homeowners notice a problem.
HVAC issues
Clogged condensate lines, dirty coils, and undersized systems can cause condensation and duct-borne contamination.
Building envelope problems
Failed flashing, poor grading, and window seal failures can allow water into wall assemblies.
Prevention tips
- Keep indoor humidity below 55%
- Repair leaks promptly
- Ensure bathroom and kitchen exhaust fans vent outdoors
- Maintain HVAC systems annually
- Address any water intrusion within 24 hours
Get a professional opinion
If you're unsure about mold in your property, the safest step is a professional inspection. Call 747-688-9717 to speak with Platinum Mold Testing in Glendale, CA.
Frequently Asked Questions
When should I call a professional mold inspector?+
Call an inspector when you see visible growth, smell a persistent musty odor, have had recent water damage, or are experiencing unexplained indoor health symptoms.
Do you offer inspections outside of business hours?+
Yes — Platinum Mold Testing is available 24 hours a day, 7 days a week for emergencies and scheduling flexibility.
Is mold testing always necessary?+
Not always. If mold is already visible, testing may not add value beyond confirming the species. When mold is suspected but hidden, testing is often the only reliable way to confirm it.
Concerned About Mold? Schedule a Professional Inspection Today.
Speak with a Platinum Mold Testing specialist. We serve Glendale, CA and the surrounding Los Angeles County area — open 24 hours, monday to sunday.