Roof leaks, overflowing sinks, tobacco smoke and big spills can all leave ugly ceiling stains or dinginess that is impossible to conceal with plain old paint. But cover the stain with a coat of ...

Q:We have a "popcorn" ceiling that hasn't been painted for more than two decades, and, although it looks fairly stable, it seems to be dropping powder, which we fear could be asbestos. We would like ...