Is there green stuff growing on the side of your house? Do your sidewalks/driveway look like its in the shade even on a sunny day? Do you have a roof that you want it to look its best? We have the equipment needed to blast that dirt away. Many don't even realize their concrete is dirty until we touch it with 3000+ psi water. Grease, gum, mildew, can all be cleaned off bringing those surfaces back to like new!