That musty smell in your basement? It could be mold — or it might be mildew. While both are types of fungi, they’re not the same thing. And when it comes to protecting your home and your health, knowing the difference is important.
If you’re a homeowner in Maine, where damp basements and humidity are common, this guide will help you figure out what you’re dealing with — and what to do about it.
Mold vs Mildew: The Key Differences
Mildew
- Typically appears as a gray, white, or yellow patch
- Grows flat and spreads across surfaces
- Feels powdery or fluffy to the touch
- Usually found on damp walls, windowsills, or fabric
- Easier to clean with household solutions
Mold
- Appears black, green, or dark brown
- Can look fuzzy, slimy, or even hairy
- Often grows beneath the surface (behind drywall, under carpets)
- Releases airborne spores that can impact indoor air quality
Requires professional mold remediation to safely remove
Why Mold Is More Dangerous
While mildew is mostly a cosmetic issue, mold can be a serious threat — especially to people with asthma, allergies, or weakened immune systems.
Mold exposure has been linked to:
- Chronic coughing or sneezing
- Sinus congestion
- Eye irritation
- Skin rashes
- Respiratory issues
If you suspect mold in your basement, don’t just clean the surface — it may go deeper than you think.
How to Tell What You’re Dealing With
If you’re unsure, here are a few tips:
- Smell it: Mold usually has a stronger, earthy odor.
- Try a spot test: Mildew may wipe away with vinegar or bleach; mold often won’t.
- Check for moisture: Recent leaks or flooding point to mold risk.
- Look beneath surfaces: Mold likes to grow behind walls or under flooring.
Still not sure? A professional mold inspection can confirm what’s growing and how far it’s spread.
How to Keep Your Basement Dry and Safe
Whether it’s mildew or mold, moisture is the root cause. Here’s how to reduce the risk:
- Install a basement waterproofing system
- Use a dehumidifier to control humidity levels
- Check for plumbing leaks and foundation cracks
- Avoid storing cardboard or fabric items directly on the floor
- Ensure proper ventilation
Not Sure What’s Growing? Let Us Take a Look.
At Eastern Mold & Basements, we help Maine homeowners diagnose and safely remove both mold and mildew.
Our team provides comprehensive mold remediation services designed to restore your home and your peace of mind.
Schedule your free inspection today, and we’ll help you breathe easier.