hidden mold in walls

Checking for mold inside walls starts with your senses — a persistent musty odor that doesn’t go away with cleaning is the most reliable early indicator before any visible signs appear. By the time you see staining or discoloration, growth is typically extensive. This LA guide covers how to check for mold in walls systematically: visual inspection cues, when a moisture meter confirms active moisture, how thermal imaging locates growth without opening walls, and when professional testing is needed. Call (818) 336-1800.