Roof Cleaning in Oyster Bay, NY
Moss and black algae grow faster on Oyster Bay roofs that stay damp, and a soft wash at low pressure is the safe way to remove them without tearing up shingles.
Oyster Bay is the hamlet at the head of Oyster Bay Harbor and the seat of the Town of Oyster Bay. Nearly a quarter of the hamlet’s area is water, and the neighborhoods around the harbor, Beekman Beach and the WaterFront Center see plenty of moist air. Roof slopes that face north or sit under trees dry slowly after rain, and that is where green and black growth takes hold first. Kevin and the team treat those roofs with a soft-wash solution applied under 500 PSI, so the cleaning comes from the solution rather than from blasting.
At this Oyster Bay estate the team washed the house and cleaned the pavers, and this shot was taken while the work was underway. A house like this has a lot of surface to cover: brick walls, light trim around the windows, a row of dormers, a turret and a covered drive-through, plus the gray paver bands that frame the circular drive.
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Your free quote is usually prepared from satellite imagery, using the roof size, pitch and material we can see. You do not need to be home, and you get a written price before anything is scheduled.
Black streaks, green algae, moss and lichen are living organisms. The soft-wash solution kills them at the source, so the roof does not simply re-streak as soon as the surface dries.
Working on a roof above a home is risky without the right setup. We follow OSHA-compliant roof access practices and carry liability insurance, so you are not taking on an uninsured crew.
Quote by Satellite
Your free quote is usually prepared from satellite imagery, using the roof size, pitch and material we can see. You do not need to be home, and you get a written price before anything is scheduled.
Growth Removed, Not Just Rinsed
Black streaks, green algae, moss and lichen are living organisms. The soft-wash solution kills them at the source, so the roof does not simply re-streak as soon as the surface dries.
Safe Access
Working on a roof above a home is risky without the right setup. We follow OSHA-compliant roof access practices and carry liability insurance, so you are not taking on an uninsured crew.
Why Oyster Bay Homeowners Call Kevin and the Team
Long Island homeowners have been calling us since 1986. We are PWMCA certified, licensed and insured, and work under Nassau County Home Improvement License HO455700000. Our office is at 108 Jerusalem Ave in Hicksville, a short drive from the harbor, and the person who answers (516) 350-8393 is part of the team, not an answering service.
Once you approve your quote, Kevin or a team member walks the property with you before work begins. That walk is when we confirm the roof material, note any loose or damaged shingles, and check where water will drain.
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Based in
Hicksville
Licensed
& Insured
PWMCA
Certified
Nassau County
Licensed
In Business
Since 1986
Where the Streaks Come From
The black lines on asphalt shingles are typically Gloeocapsa magma. It feeds on the limestone filler used in many shingles and spreads downhill each time it rains. Moss and lichen follow on slopes that stay wet, lifting shingle edges and loosening the granules that shield the roof from the sun. The longer it stays, the harder it is on the roof.
Most Long Island roofs need cleaning every three to five years. Damp, shaded slopes, which are common on harbor-area properties, may need attention sooner. Our guide to black roof streaks explains more.
Protecting Plants, Soil and Drainage
Before cleaning starts, plants below the roofline are pre-wet. After the rinse, NeutraPods, a sodium hypochlorite neutralizer, takes care of remaining solution so it does not travel into soil or storm drainage. Where conditions allow, we place collection barriers at downspout openings. Near the harbor, keeping runoff under control matters, and these steps are part of every roof job.
Soft-Wash Roof Cleaning Oyster Bay NY
What Long Island Homeowners Say About Our Roof Work
Roof Cleaning in New York
Pressure Wash Long Island was great for all the jobs was done, and they always answer the phone on time, arrive on time, great service ! I am sure I will use this company every year for power washing and roof cleaning.
Roof Cleaning in NY
Great service, extremely helpful and informative. looking forward to call them again for roof cleaning.
Roof Cleaning NY
Pressure Wash Long Island were on-time, reasonably priced - extremely polite. And my house and windows look amazing! Excellent roof cleaning service!
(516) 350-8393
Roof Cleaning Oyster Bay NY: Questions and Answers
How often should an Oyster Bay roof be cleaned?
Every three to five years for most roofs. North-facing or shaded slopes that stay damp may need cleaning sooner.
What is the green growth on my roof?
Usually algae or moss, often alongside lichen. All three hold moisture on the roof. A soft wash kills them so they can be rinsed away without high pressure.
Is roof cleaning runoff a problem near the harbor?
We pre-wet plants, use a neutralizer after cleaning so leftover solution breaks down before it reaches soil or storm drains, and place collection barriers at downspouts where the site allows.
Can you clean cedar shake or metal roofs?
Yes. Along with asphalt and architectural shingles, we clean cedar shake, slate, tile, metal and flat membrane roofs, adjusting the method to each one.
Do you need to inspect the roof before quoting?
No. Quotes are normally done by satellite. Kevin or a team member walks the property with you after you approve the quote and before work begins.
Want the full picture? See our roof cleaning page, or look at other work we do locally: pressure washing in Oyster Bay, paver sealing in Oyster Bay and gutter cleaning, which starts at $295. A free quote is one call or text away at (516) 350-8393, or send the details through our contact page.