Concrete and brick driveways, sidewalks and patios are very accessible to a wide variety of stains and build up. Over time airborne dirt, mold, mildew, rust, tree stains, oil and automobile stains tend to take a toll on masonry surfaces.
Clean Wash and Restoration Incorporated is equipped with 200+ degree hot water, special detergents, 4,000psi and commercial surface cleaners.
Quite honestly for residential customers all we need is "sometimes" chemicals but cold water machines with proper pressure through a surface cleaning machine is what gets the job done. Hot water can warp vinyl siding and kill vegetation. Hot water is really only necessary for heavy stains from grease and oils that are pretty thick. Hot water also helps remove gum, gooey drink spills and graffiti.
If you have oil spill on your concrete driveway, the sooner we can get to it the better we can remove it.
Concrete is very porous, allowing dirt and oils to soak in very deep that is why only a portion of old stains can be removed. You also have to be careful because too much pressure and damage can result to the top layer of the concrete.