Water penetrates drywall, plaster ... applying fresh paint over paint bubbling won’t fix the underlying issue. The bubbles will reappear unless you address the moisture issues and prepare ...

Simple nail holes can typically be fixed with fast-drying spackle in under an hour ... For larger repairs, a drywall saw, screws, repair clips, mesh drywall tape, and an extra pieces of drywall ...

A startling symptom of water damage is when the paint on the walls or ceiling bubbles up. Fix the leak first ... Water penetrates drywall, plaster, or wood through a leak or moisture buildup.