Musty, earthy, or damp smell
Visible black, green, white, or gray spots on walls, ceilings, floors, or furniture
Water stains, discoloration, or peeling paint
Warped, bubbling, or cracking drywall or wallpaper
Condensation on windows, pipes, or walls
Recent or ongoing leaks, flooding, or water damage
Damp or humid areas in basements, bathrooms, kitchens, or laundry rooms
Mold growth around sinks, tubs, toilets, vents, or under cabinets
Allergy-like symptoms that improve when leaving the house
Increased coughing, sneezing, wheezing, or nasal congestion indoors
Headaches, eye irritation, or throat irritation indoors
Soft, fuzzy, or slimy patches on surfaces
Mold on fabrics, carpets, or stored items
Rust, corrosion, or rot near wet areas
Persistent dampness after cleaning or drying
Unexplained worsening of asthma or respiratory issues indoors