Soft washing is a low-pressure, chemical-based cleaning method that kills algae, mold, and mildew at the root instead of just knocking it loose off the surface. Cleveland Pressure Washing uses it on roofs, stucco, and painted surfaces a standard pressure washer would damage — work backed by a 4.9-star rating across 28 Google reviews.
Soft washing swaps water pressure for chemistry. Instead of relying on force to strip algae and mildew off a surface, the process applies a biodegradable cleaning solution that kills the growth down at the spore level, then rinses it away at a fraction of the PSI a standard pressure washer runs. That's the difference between a surface that looks clean for a season and one where the black streaking and green film come back within a few months — the roots are still there.
It's the method Cleveland Pressure Washing uses on roof shingles, stucco, painted wood, and anything else where a high-pressure blast would do more damage than the dirt ever did. The company works out of Parma and covers 20 service areas across the Cleveland area, with a 4.9-star rating from 28 reviews on the work.
What surfaces need soft washing instead of a regular power wash?
Asphalt shingle roofs are the clearest case — granule loss from high pressure shortens a roof's life, and most manufacturers will say as much in their warranty terms. Stucco cracks under force it wasn't built to take, and any painted surface risks having the paint stripped along with the grime. Soft washing is built around all three: low pressure that rinses instead of blasts, doing the actual cleaning work with the solution rather than the water.
Does soft washing actually last longer?
It does, because it kills what's growing instead of just removing what's already visible. A pressure wash on its own can knock algae or mildew off the surface and leave the spores that caused it intact — regrowth shows up again within a season, especially on shaded or north-facing surfaces that stay damp longest. The chemical treatment addresses that part, which is why roofs and siding treated this way tend to stay cleaner into the following year rather than the following month.
Is soft washing safe for my roof?
Yes — it's the method most roofing manufacturers recommend specifically because it avoids the granule loss that high-pressure washing causes on asphalt shingles. The solution does the cleaning; the water pressure is only there to rinse.
How long does a soft wash treatment last?
Most surfaces stay visibly clean for a year or more, since the treatment kills the algae and mildew rather than just knocking it off the surface. Shaded, north-facing areas that hold moisture longest tend to show regrowth sooner than sun-exposed ones.
Will the chemicals hurt my plants or lawn?
We pre-rinse and cover landscaping close to the treatment area and use solutions formulated to break down without lasting harm to grass or shrubs. Anything under a direct drip line gets extra rinsing after the application.