Power washing your home does more than make it look like new. Cleaning the exterior of your house keeps it in good repair by removing algae, mold, moss, and mildew, all of which can damage siding.

There may not be a magic wand to instantly banish years of mildew, soot, dirt, and grime from your home’s exterior, but pressure washing is the next best thing. The process is a terrific way to remove ...