Mold and mildew are often used interchangeably, but they’re not the same. While both are types of fungi that thrive in damp environments, knowing the difference is key to choosing the right solution—especially for homeowners in New York City where humidity, poor ventilation, and older buildings are common.
At Crown Mold Specialists, we help NYC residents identify and treat both mold and mildew safely and effectively. Here’s how to tell them apart and what to do when you spot either.
What is mildew?
Mildew is a surface-level fungus that typically appears as a thin, powdery growth. It’s most common on bathroom walls, windowsills, shower curtains, and other damp surfaces.
Key characteristics of mildew:
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Usually white, gray, or yellow
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Grows flat and spreads across surfaces
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Often found on non-porous materials
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Easier to clean than mold
What is mold?
Mold grows deeper and is often found on porous materials like drywall, wood, and insulation. It can appear in a variety of colors—black, green, brown, or even orange.
Key characteristics of mold:
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Can penetrate below the surface
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Often has a fuzzy or slimy texture
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Produces a strong, musty odor
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Can cause structural damage and health issues
Health risks: mildew vs. mold
Mildew may cause mild allergic reactions, such as sneezing or coughing, especially in sensitive individuals.
Mold, especially black mold (Stachybotrys), can cause more serious symptoms including headaches, skin rashes, fatigue, and respiratory issues—especially in children, seniors, or those with preexisting health conditions.
How to remove mildew
Small patches of mildew can often be cleaned using household cleaners or a mixture of water and vinegar. Always wear gloves and ensure the area is ventilated.
When to call a mold specialist
If the problem covers a large area (more than 10 square feet), keeps coming back, or gives off a strong odor, it may be mold—requiring professional inspection and remediation.
Final thoughts
Knowing the difference between mold and mildew helps you respond faster and more effectively. While mildew is often a simple cleanup, mold can be a deeper issue requiring professional help.
If you suspect mold in your NYC home, contact Crown Mold Specialists for a thorough inspection and expert remediation.