Do I have mold after water damage? How can I tell?
Do I Have Mold After Water Damage? How Can I Tell?
After water damage, many homeowners worry about mold, and for good reason. Mold can begin growing within 24–48 hours if moisture isn’t properly dried, especially in basements, behind walls, and under flooring.
The challenge is that mold isn’t always visible, so knowing what to look for is critical.
Common Signs of Mold After Water Damage
You may have mold if you notice:
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A musty or earthy odor, especially in basements or closed rooms
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Visible discoloration on walls, ceilings, or flooring (black, green, white, or gray spots)
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Peeling paint or warped materials after drying
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Increased allergy-like symptoms, headaches, or respiratory irritation
Even if surfaces look dry, moisture can remain trapped where mold thrives.
Hidden Mold Is Very Common
Mold often grows in places homeowners can’t see, including:
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Behind drywall
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Under carpeting or padding
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Inside insulation
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Beneath flooring or baseboards
If your water damage was not professionally dried, hidden mold growth is a serious risk.
When Should You Call a Professional?
You should contact a professional like us immediately if:
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Water damage occurred more than 24 hours ago
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You smell mustiness but don’t see mold
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The basement or crawl space flooded
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Drying was delayed or incomplete
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You see any visible mold growth
Professional moisture detection and inspection are the only reliable ways to confirm whether mold is present.
Why DIY Mold Checks Often Miss the Problem
Bleach, fans, and surface cleaning do not remove moisture inside walls or materials! Without proper drying and assessment, mold can continue growing unnoticed and spread over time.
Professional restoration teams use:
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Moisture meters and thermal imaging
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Controlled drying systems
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Proper containment when mold is present
This prevents further damage and protects indoor air quality.
The Bottom Line
If your home experienced water damage and you’re unsure about mold:
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Mold can grow quickly, often within days
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Lack of visible mold doesn’t mean you’re in the clear
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Professional inspection is the safest next step
If you’re concerned about mold after water damage, New Method Restoration provides professional water damage response and guidance throughout New Jersey, helping homeowners identify risks early and prevent long-term issues.
When it comes to mold, early action makes all the difference.
