Is there a way to clean flat-painted walls that are dingy and dirty?
I am afraid moisture will damage the paint. If it is poor-quality paint, it might be easier to apply another coat of paint, as long as the existing coat is not chipping or peeling. However, today’s quality latex paints, flat or enamel, are more durable than paints of old. During the cleaning process, they are less likely to streak and can usually be cleaned using a wet or dry method, working top to bottom on the wall. Either method should be tested in an inconspicuous area to ensure the cleaning process does not damage the finish of the paint. To wash the surface, prepare two buckets. Fill one with a neutral cleaning solution, diluted according to manufacturer’s instructions. Use a clean sponge to dip into the cleaning solution and spread over the surface, wiping away any excess solution. Follow this by wiping the cleaned area with a soft cloth (white cotton terry cloth is a good choice). Turn the cloth frequently to maintain a clean side. Work in sections about 4-by-4 feet. Wring the