We at Woodlands Power Wash use a biodegradable soft wash solution, which consists of diluted bleach, soap and scent enters detergent. . This is the safest way to clean your home or business. Instead of using a high pressure which could and very often does damage surfaces we use only low pressure tips and our soft wash solution to clean all surfaces other than concrete. This method effectively cleans and protects your property with no way to damage anything.