Those black streaks on your shingles are algae (Gloeocapsa magma) — they shorten shingle life and void most manufacturer warranties if left untreated. Our ARMA-approved soft wash removes them safely, without a single high-pressure stream touching your roof. 5-year warranty included.
High-pressure washing strips granules off asphalt shingles — the granules that protect the asphalt mat from UV damage and weathering. Most shingle manufacturers, including GAF and Owens Corning, explicitly void their warranties if high-pressure methods are used for cleaning.
The Asphalt Roofing Manufacturers Association (ARMA) recommends a low-pressure chemical application — exactly what HydroClean uses. We apply a professional-grade sodium hypochlorite solution that kills the algae organism at its root, then rinse gently. Black streaks gone. Shingles intact. Warranty preserved.
Every roof is different. Every job follows the same process. Here's exactly what happens when HydroClean shows up at your home.
We inspect the roof from the ground and up close before quoting. You get an exact price and a clear explanation of what we're treating.
We pre-wet all plants, shrubs, and grass around the home perimeter. We also protect gutters and downspouts so runoff doesn't damage them.
Low-pressure application of our professional-grade soft wash solution. It penetrates the algae colony and kills it at the root — no scrubbing, no pressure damage.
We allow the solution to dwell, then rinse gently at low pressure. Streaks, algae, moss, and lichen flush away cleanly without disturbing granules.
Every roof cleaning comes with a 5-year warranty. If black streaks return within 5 years, we come back and re-treat at no charge.
Roof cleaning isn't just about looks. Done wrong, it shortens shingle life and costs you thousands. Here's why homeowners across Catawba County trust us with their roof.
We walk every job before we quote it. You get an exact number — not a range, not a guess.
The longest warranty in the area. Black streaks come back within 5 years, we come back free. In writing.
We follow the Asphalt Roofing Manufacturers Association's recommended cleaning protocol — so your shingle warranty stays intact.
We pre-wet and neutralize all plants before and after chemical application. Roofs get clean; gardens stay safe.
Hundreds of verified Google reviews from real homeowners across Catawba County. Consistent results, every time.
Fully licensed and carrying both general liability and workers' comp. Your home and our crew are fully covered.
Same property · Same day · No high pressure — soft wash only
Algae and black streaks fully removed using low-pressure soft wash — safe for all shingle types. Results last 2–4 years.
Black algae streaks are caused by Gloeocapsa magma — a bacteria that eats your shingles from the outside. Our ARMA-approved soft wash kills it at the source.
Serving Hickory, Newton, Conover, Lenoir, Statesville, and all of Catawba County. Free in-person estimates, ARMA-approved method, and a 5-year warranty on every roof cleaning.
Black algae streaks removed safely — no pressure washing, no damage.