Softwash Roof Cleaning in Mount Vernon, Yonkers, New Rochelle, and Nearby Cities Gentle Roof Cleaning That Protects Your Home—and Your Warranty.
Gentle Roof Cleaning That Protects Your Home—and Your Warranty.
Your roof is one of your biggest investments—don’t risk damaging it with high-pressure washing. At Tri State Pressure Washing, we use a safe softwash method to gently remove mold, algae, moss, and grime from roofs in Mount Vernon, Yonkers, New Rochelle, and surrounding cities.
Asphalt shingles, tile, slate, and metal roofs are all treated with care and precision.
We assess roof condition, material, and the level of staining.
Our non-toxic formula eliminates organic growth like Gloeocapsa Magma (black streaks).
Gently removes residue without harming shingles or seals.
We inspect results and ensure 100% customer satisfaction.

Using high-pressure washing on a roof can strip away protective granules and void your roof’s warranty. Our softwash technique eliminates buildup without abrasion, making it ideal for both residential and commercial roofs.
Softwash is a low-pressure cleaning method that uses eco-safe detergents to kill algae, mold, and mildew at the root. It’s ideal for delicate surfaces like shingles and tile.
Yes, it’s the safest roof cleaning method and is recommended by leading roofing manufacturers. It won’t cause granule loss or surface damage.
Typically every 2–3 years, or sooner if you notice black streaks or green moss. Regular cleaning helps prevent damage and extends your roof’s life.
Black streaks are usually caused by a type of algae called Gloeocapsa Magma. It feeds on the limestone in shingles and spreads quickly if not treated.
No, traditional pressure washing can damage roofing materials and void warranties. Softwash is the safer, more effective solution.
Most treatments last 2–5 years depending on weather and surrounding trees. We use solutions that continue to work even after the job is done.
Absolutely! Our cleaning agents are 100% biodegradable and safe for pets, plants, and surrounding areas.
Book a Softwash Roof Cleaning Service Today
Protect your roof and restore your home’s beauty—without risking damage. Call (646) 771-5538 or book your free estimate for expert softwash roof cleaning in Westchester-area cities.