We use a three-step process on the exterior faces of any surface of your property, to not only restore the clean look that you want, but also deeply sanitize the surface from those harmful, naturally occurring agents that can leave lasting impacts to the building materials they attack. Our technicians will use environmentally-friendly, biodegradable, and non-abrasive products at low pressure that soak into the grime buildup to start working on breaking down the damaging mold, rust, acid residue, etc.