What are the cons of pressure washing?

What are the cons of pressure washing?

Pressure washing carries several real risks worth knowing before starting a job. Used incorrectly, it can strip paint, force water behind siding panels, erode mortar joints between bricks or pavers, and damage roofing shingles by stripping their protective granules. Physical injury is a genuine concern too, since high-pressure water jets can cause serious skin injuries at close range, which is why proper nozzle selection and technique matter as much as the machine itself. Older or already-weakened surfaces, including aging concrete and historic masonry, can be damaged even at moderate pressure levels that would be perfectly safe on newer materials. Environmentally, wastewater runoff containing detergent, oil, and debris can be harmful if it drains directly into storm systems rather than being properly contained. None of these are reasons to avoid pressure washing entirely, but they’re reasons to match technique carefully to the surface.