A Complete Guide for New Jersey Homeowners A home’s aluminum siding being carefully pressure washed to restore its clean look and prevent long-term grime and mildew buildup. When you look at your home’s exterior, does it sparkle with curb appeal—or do you notice streaks of grime, mildew, and cobwebs clinging to the siding? That’s when most homeowners start asking the same question: How often should I pressure wash my house? We get it. Living in New Jersey, where our homes fac