People use "pressure washing" as a catch-all, but the two methods are genuinely different — and using the wrong one on the wrong surface causes real, expensive damage.
Pressure washing: force does the work
High-pressure water strips dirt off hard surfaces. It's the right tool for concrete driveways, sidewalks, patios, retaining walls, and heavy equipment. On those surfaces the pressure is what lifts embedded grime, tire marks, and rust staining.
Soft washing: chemistry does the work
Soft washing applies a cleaning solution at roughly garden-hose pressure, lets it dwell to kill mold, algae, and bacteria at the root, then rinses. Because there's no force involved, it's safe for surfaces that high pressure would destroy.
Which surfaces need which
- Soft wash: roof shingles, vinyl and Hardie siding, stucco, EIFS, painted wood, screens, windows, and gutters.
- Pressure wash: concrete, brick, most pavers, retaining walls, and commercial hardscapes.
What goes wrong with the wrong method
High pressure on a shingle roof blows off the granules that protect it and can void your warranty. On vinyl siding it forces water behind the panels, where it sits and grows the exact mold you were trying to remove. On stucco and older wood it etches and gouges the surface permanently.
It also lasts longer
Pressure alone removes what you can see. Soft washing kills the organism, so growth takes significantly longer to return — often twice as long between cleanings. That's why we soft wash anything organic and save the pressure for hardscape.
Not sure which your property needs? Send us a few photos and we'll tell you straight, even if the answer is "that doesn't need cleaning yet."