SoftWashing is the preferred cleaning method for exterior surfaces. Our systems can not exceed 100 psi which is about the equivalent of your nozzle at the end of your garden hose. We use a special mix of water, bleach, and surfactants that penetrates and kills the organic growth on your exterior surface. For more information about our business and the services we provide visit us at www.xcellentxteriors.com or give us a call at 863-838-6850.