- Roof Soft Washing · Since 1979
Roof Cleaning & Soft Washing in Westchester County, NY
Is your Westchester County roof covered in dark streaks, green moss, or crusty lichen? A&J Reliable has been safely cleaning roofs across Westchester County since 1979. Our professional, low-pressure soft washing removes the stains and the organisms causing them — without the shingle damage that comes from pressure washing — and makes your roof look new again.
Trusted by homeowners since 1979
GAF
Certified Installer
Owens Corning
Preferred
Fully Licensed & Insured
- Service Area
Why Westchester County roofs get black streaks and moss
Westchester County’s heavy tree cover, humidity off the Hudson and Long Island Sound, and cold, wet winters keep roofs damp enough for algae, moss, and lichen to thrive. Many homes here also have premium roofing (slate, cedar shake, and architectural shingle) that needs a gentle, expert hand, not a pressure washer, to clean safely.
Left alone, that growth does not just look bad. Algae, moss, and lichen trap moisture against the shingles and shorten your roof’s life. The good news: it is almost always fixable with a proper cleaning, no replacement required.
Our safe soft washing method
Soft washing is the method roofing manufacturers actually recommend. We apply a biodegradable cleaning solution at low pressure that kills algae, moss, and lichen at the root, let it work, and gently rinse. Because we are a licensed roofing contractor — not just a cleaning crew — we also keep an eye out for loose flashing, worn areas, or early leaks while we are up there.
Why Bergen County roofs get black streaks and moss
Bergen County’s mature tree canopy, humid summers, frequent nor’easters, and freeze-thaw winters create ideal conditions for roof algae, moss, and lichen. Shaded, tree-lined streets keep roofs moist, and once the airborne algae spores land, the black streaks spread from house to house, usually worst on the north- and east-facing slopes that dry out slowly.
Left alone, that growth does not just look bad. Algae, moss, and lichen trap moisture against the shingles and shorten your roof’s life. The good news: it is almost always fixable with a proper cleaning, no replacement required.
Our safe soft washing method
Soft washing is the method roofing manufacturers actually recommend. We apply a biodegradable cleaning solution at low pressure that kills algae, moss, and lichen at the root, let it work, and gently rinse. Because we are a licensed roofing contractor — not just a cleaning crew — we also keep an eye out for loose flashing, worn areas, or early leaks while we are up there.
- Service Area
Towns we serve in Westchester County
- White Plains
- Scarsdale
- Rye
- Tarrytown
- Bronxville
- New Rochelle
- Mount Kisco
- Chappaqua
- Armonk
- Harrison
- Mamaroneck
- Katonah
- Bedford
- Larchmont
- Pleasantville
- Ossining
- Croton-on-Hudson
- Yonkers
Serving all of Westchester County and surrounding areas. Don’t see your town? Call (877) 492-9014.
How much does roof cleaning cost in Westchester County?
What causes the black streaks on Westchester County roofs?
They are caused by a blue-green algae called Gloeocapsa magma, which feeds on the limestone in asphalt shingles and spreads by airborne spores. Westchester County’s humidity and tree cover make roofs especially prone to it, usually on shaded, north-facing slopes.
Do you soft wash or pressure wash roofs?
We soft wash. Soft washing uses low pressure and a biodegradable solution to remove algae, moss, and lichen without stripping shingle granules or voiding your warranty. We never high-pressure wash an asphalt roof.
Which Westchester County towns do you serve?
We serve Westchester County throughout, including White Plains, Scarsdale, Rye, Tarrytown, Bronxville, New Rochelle, Mount Kisco, and Chappaqua, and surrounding communities. Call (877) 492-9014 to confirm we cover your street.
How long will my roof stay clean after a soft wash?
Typically several years, because soft washing kills the algae and moss at the root rather than just rinsing the surface. Cheaper pressure washing tends to let the streaks return within months.
Is A&J Reliable licensed and insured?
Yes. A&J Reliable is a licensed, insured roofing contractor that has served the tri-state area since 1979, with a 4.9-star Google rating, a BBB A+ rating, and GAF and Owens Corning certifications.
CALL TO ACTION: Get your free roof inspection and estimate. No pressure, no upsells. Call (877) 492-9014.
Free roof inspection · Biodegradable soft wash · Warrantied work · Serving the tri-state area since 1979
The Most Reliable Roofing Contractors in the Tri-State Area Covering the New York, New Jersey, & Connecticut Area Since 1979.
50 Second Ave, Suite A
Nanuet, NY 10954
Phone: (877) 492-9014
Email: contact@ajreliable.com
