A pool house is one area of the home that can include a little whimsy. If you have a pool house and want redecorate it, there are several pool house decorating ideas available for your. These pool house decorating ideas can create an elegant and luxurious retreat or a fun tropical paradise. For example, paint the walls according to your theme. Use green and shades of pink for a country garden; dark green, white and blue for a summer camp; or yellow and blue to evoke a Mediterranean feeling. Paint the trim a bright white enamel to make the rooms sparkle.