Mold is not always visible. In many New York City homes and apartments, it hides behind walls, ceilings, or floors—growing silently and causing damage before anyone notices. At Crown Mold Specialists, we often find hidden mold in places people least expect.
If you suspect mold but don’t see it, here’s how you can detect the warning signs without breaking through your walls.
Common signs of hidden mold
1. Persistent musty odor
One of the most reliable signs is a consistent earthy or musty smell, especially in certain areas of your home like basements, bathrooms, or near plumbing.
2. Unexplained health issues
Symptoms like coughing, sneezing, headaches, skin irritation, or sinus congestion that improve when you leave your home may be mold-related.
3. Wall discoloration or bubbling paint
Brown, green, or black stains—along with bubbling, peeling, or cracking paint—can indicate moisture buildup behind the surface.
4. Warped or soft drywall
If walls feel soft to the touch, warped, or have an unusual texture, this could be due to prolonged moisture exposure and hidden mold growth.
5. Recent water damage
If your property had a leak, flood, or plumbing issue—even months ago—there may be mold growing out of sight.
How to confirm mold behind walls without demolition
Moisture meters
These handheld devices detect moisture levels in drywall and building materials. High readings can point to areas at risk for mold.
Infrared thermal imaging
Used by professionals, thermal cameras can detect temperature differences caused by moisture, helping to identify potential mold hot spots.
Air quality testing
Mold spores often circulate through the air. Air sampling tests can detect the presence and type of mold even if it’s not visible.
Borescope inspections
A tiny camera inserted through a small hole in the wall can visually confirm mold without the need for major damage.
What to do if you suspect hidden mold
If you notice any of the above signs, the safest approach is to schedule a professional mold inspection. At Crown Mold Specialists, we use non-invasive tools to assess mold growth and offer safe, thorough removal plans tailored to NYC homes and buildings.
Final thoughts
Just because you can’t see mold doesn’t mean it’s not there. Paying attention to signs like odors, wall damage, and unexplained health issues can help catch mold early—before it spreads and causes further damage.
If you suspect mold behind your walls, contact Crown Mold Specialists for expert detection and remediation services.