The Importance of Pressure Washing and Sealing for Outdoor Masonry Pressure washing and sealing are essential for maintaining the beauty and longevity of your outdoor masonry surfaces, including stone, brick, mortar, and concrete. Over time, dirt, grime, algae, and weather elements can accumulate on driveways, pathways, and patios, dulling their appearance and compromising their durability. Pressure washing uses high-pressure water to deep-clean these surfaces, removing stain