Look beyond surface staining
Discoloration, softness, bubbling paint and swollen joints can signal moisture inside the panel or wall cavity.
Water source changes the decision
Drywall exposed to contaminated water is handled more conservatively than drywall affected by a clean water source.
Cavities matter as much as the face of the wall
Insulation, framing and the back of drywall can remain wet while the visible surface improves.
Repair after appropriate drying
Patching and repainting should follow—not precede—the moisture-control work.
Talk through the situation by phone
Describe the source of the water, the affected area and whether the water is still entering the property.