Please be careful when choosing a company to power wash or pressure wash your property. Why? The high pressure these units put out can permanently damage wood, and permanently etch concrete, rock, or stone. We at Craig's use rotary head washing equipment that spins so fast that the high pressure is never concentrated at any one point long enough to cause damage. This allows us to clean 98% of all surfaces safely and thoroughly. We also use wide angle (lower pressure) dozzles to rinse off all the soaps we use.