Remove dust with a microfiber cloth, duster, or vacuum brush attachment
Wipe walls with a soft sponge or cloth dampened with warm water
Add a small amount of mild dish soap to remove grease and grime
Clean from top to bottom to avoid streaks and drips
Rinse with clean water after using soap
Use a degreaser on kitchen walls if needed
Spot-clean scuffs, fingerprints, and stains before washing the whole wall
Avoid soaking the walls
Let the walls dry completely before painting
Fill holes and repair damage after cleaning and drying
Lightly sand glossy or rough areas if needed before painting