If your patio or pool deck looks slippery, stained, or discolored, it’s time for a cleaning. Algae and mildew thrive in shaded, damp areas and can make surfaces unsafe. Homeowners in Raleigh benefit from annual or seasonal cleanings to prevent buildup, protect surfaces, and maintain a clean, enjoyable outdoor environment. Regular cleaning also helps preserve the material, whether it’s concrete, stone, or tile.