How Do I Know If I Have a Mold Problem?

Mold isn't always visible, but there are usually clues before it becomes a bigger issue. The most common signs include a persistent musty or earthy odor, visible discoloration on walls, ceilings, or around windows, and allergy-like symptoms — sneezing, coughing, or respiratory irritation — that ease up when you leave the building.

None of these signs alone confirms mold, and none of them rule it out either. A musty smell can come from a slow leak behind a wall with no visible growth yet. Allergy symptoms can have a dozen other causes. That's exactly why testing exists: it replaces guesswork with an actual answer.

Professional mold testing collects air and surface samples and sends them to an accredited lab, which identifies what's actually present and at what level. That's a meaningfully different (and more reliable) answer than "it looks like mold" or "it doesn't look like mold" based on a visual check alone.

According to the EPA, mold exposure can contribute to allergy symptoms, coughing, wheezing, and irritation of the eyes, nose, throat, and lungs, and can be more serious for people with asthma or mold allergies. If you're noticing any of the signs above — especially in damp-prone areas like basements, crawl spaces, or around plumbing — testing gives you a clear, documented answer instead of a guess.

Schedule a radon or mold test today with DezAir Quality Testing online at dezairqualitytesting.com.