Brick, block and old mortar
Brick and block walls look tough but can be more fragile than they seem. Old mortar can crumble under pressure, and soft brick can lose its face. Water forced into joints can end up inside the wall. We use lower pressure and a cleaner that lifts mildew and soot, then rinse from the top down.
Sidewalks are different. Concrete can take more pressure, and gum, spills and oil can be treated with hot water or a degreaser. Where a sidewalk is shared with neighbors or sits beside planters and doors, we protect plants and control overspray. For painted surfaces, we test a small spot to see how the finish reacts.





