You don't need a mold inspector to suspect you have a mold problem. Most homes that need remediation showed warning signs for weeks or months before anyone called. Here are the seven we see most often.
1. A musty smell that doesn't go away when you ventilate
Open the windows for an hour. If the smell comes back within a few hours of closing them, the source is inside the building. Musty smells come from microbial volatile organic compounds (mVOCs) - a byproduct of mold metabolism. The smell often shows up before visible growth does.
2. Allergy symptoms that get worse in one specific room
Pay attention to where you feel worse. Stuffy when you walk into the basement, fine when you come back upstairs? Headache that starts after an hour in the home office? Mold reactions are usually localized. Your body is responding to a localized source.
3. Water stains that won't dry
A circular brown stain on the ceiling under an upstairs bathroom is the classic. But stains on the inside of an exterior wall, around a window, or at the base of a baseboard are the ones people miss. If a stain changed after the wall dried, water is still finding its way in.
4. Peeling paint or bubbling drywall on an exterior wall
Drywall absorbs moisture and pushes paint outward. If the paint is peeling on a wall that faces outdoors - especially one that's cold in winter - there's a moisture problem behind it, not just bad paint.
5. Black streaks or speckles on grout, caulk, or window sills
Bathrooms and window sills accumulate moisture every day. Most homes have surface mold here that wipes off with vinegar. What's not normal: streaks that come back within a week of cleaning. That means the growth is being fed continuously.
6. Visible warping of a hardwood floor or swollen kitchen toe-kick
Wood swells when it absorbs moisture. A board that wasn't cupped last summer and is cupped now is telling you there's standing moisture under it. Cup, crown, and gap patterns are diagnostic.
7. A respiratory infection that won't quite resolve
This is the one that sends people to a doctor before they reach out to us. A cough, sinusitis, or asthma flare that doesn't respond to treatment - and improves when you spend a week away from home - is worth investigating in the home, not just the body.
If you recognize two or more of these in your home, the next step is a test, not a guess. Book a free inspection - we'll tell you up front whether it's worth a visit before we charge for one.