PILLAR · FIND IT
How to find out if you have mold in your home
Identify mold & moisture at the source.
If you can see it or smell it, you have a problem worth fixing — and that's a different question from whether you need a test. This is the starting point for figuring out what you're actually dealing with.
I'm worried I'm sick →Identification
The most-searched mold question on the internet is "what does mold look like?" — and the honest answer is more useful than the scary one. Color doesn't reliably indicate species or danger; the "black mold = deadly" framing is mostly myth.
FIND IT 9 min
What does mold look like? A complete visual guide
Colors, textures, patterns — and why a third of what people call mold is something else entirely.
FIND IT 6 min
Mold vs. mildew vs. dirt vs. efflorescence
Four field tests anyone can do in five minutes.
FIND IT 14 min
Where mold hides — a room-by-room guide
Bathrooms, basements, attics, HVAC — the specific high-yield spots in every room.
Symptoms & health
The high-anxiety entry point — "is my home making me sick?" — gets a calm, honest answer here. We describe what mainstream medicine recognizes, map the contested debates, and route you to qualified clinicians. We don't diagnose.
Testing
Most homeowners don't need to pay for a mold test. EPA's own position: if you can see it or smell it, sampling is unnecessary. Here's the honest decision framework.