Pressure washing service in St. Augustine, FL, USA

High-pressure washing is not safe for coquina stone. Coquina is a soft, porous limestone that can fracture or erode under high water pressure. Soft washing with low pressure and appropriate cleaning solutions is the correct method for coquina and other historic masonry in St. Augustine's downtown and historic district.

No. Modern stucco-and-tile homes in Nocatee and World Golf Village are built with materials that tolerate standard soft wash methods. The primary concern in these communities is the same subtropical algae and mildew growth that affects all of St. Johns County, and roof softwashing and house washing address that effectively without the extra precautions required for historic surfaces.

Mature trees throughout St. Augustine's historic neighborhoods and older residential areas drop leaves, seed pods, and organic debris that accumulate in gutters faster than in newer, less-treed developments. Clogged gutters on historic structures are a particular concern because overflow water runs down masonry walls and accelerates staining and moisture damage. Regular gutter cleaning prevents that overflow.

The dark streaks on clay and concrete tile roofs are caused by Gloeocapsa Magma algae, which thrives in St. Augustine's humid, salt-air environment. The algae feeds on the limestone filler in roofing materials and spreads across the tile surface. Roof softwashing kills the algae at the root and removes the staining without cracking or dislodging the tiles.

Paver cleaning and paver sealing can be scheduled together, but the pavers must be fully dry before sealer is applied. Depending on weather conditions, sealing is typically done after the cleaned surface has had adequate time to dry. Both services can be coordinated in a single project to protect the paver surface from future staining and weed growth.