This is why pressure washing your home is important at least once a year. Homes take a year-round beating from ultraviolet rays, dust, dirt, algae, mold, insects, and a host of other harmful contaminants. This causes buildup on siding, embedded stains in driveways, and build up black streaks on your roof. So, how do we prevent this from happening? Regular maintenance is the answer. Every home benefits from regular, consistent power washing. In fact, the benefits run deeper than what you see on the surface. Here are a few of the biggest benefits of power washing your home: