Signs of Water Leaks in Walls
Damp or discolored drywall. Peeling paint or wallpaper on your wall. A warped or stained wall. A buckle, crack, or water stain on drywall ceiling or your floor.
Signs of water damage in your walls can be light-brown or beige spots. You could also find a spot of peeling or flaking paint that's caused by excess moisture. These are clear signs of an active leak, and your first move should be to turn off the water to your home.