Why Roof Cleaning Changes Everything

Top-Rated Roof Cleaning Services in Suffolk County, NY.

It starts slowly. A shadow here, a streak there—until one day, you glance up and realize your once-beautiful roof looks tired, stained, and downright dirty.

If you're like many Suffolk County homeowners, those black streaks on your roof aren’t just an eyesore—they’re a source of embarrassment. We get it. It’s frustrating to keep the rest of your home looking great, only to have your roof steal the spotlight for all the wrong reasons.

But here’s the good news: it doesn’t have to stay that way. At K.O.S. Cleaning, we specialize in transforming dirty, streak-covered roofs into like-new surfaces using safe, professional roof cleaning methods that protect your home and restore your curb appeal.

What Are the Black Streaks on My Roof?

Those dark marks aren't just dirt—they're likely Gloeocapsa Magma, a type of algae that feeds on your shingles and thrives in the humid Long Island climate. Over time, it can stain your roof, weaken the shingles, and even shorten the lifespan of your roof if left untreated.



And here’s the thing: algae spreads. What starts as a few streaks on one side of the house can quickly take over your entire roof—and worse, spread to your neighbors.

Why Roof Cleaning Is More Than Just Cosmetic

We know how easy it is to ignore the problem or put it off for “next year.” But having your roof professionally cleaned offers more than just a boost in appearance:

• Protects Your Investment: A clean roof lasts longer by preventing algae and lichen from breaking down your shingles.
• Enhances Curb Appeal: A dirty roof can make your entire home look neglected—even when it’s not.
• Saves Money on Repairs: Regular cleanings help you avoid early roof replacement and costly water damage.
• Boosts Home Value: Planning to sell? A clean, streak-free roof makes a great first impression.

Soft Washing: The Safe Way to Clean Your Roof

At K.O.S. Cleaning, we never use high pressure on roofing. Our team uses a method called soft washing, which gently applies the right cleaning detergents to remove algae, mold, mildew, and buildup without damaging your shingles.

Whether your roof is asphalt, cedar, stone, or metal, we have the training and tools to clean it safely and thoroughly.

Serving Homeowners Across Suffolk County

We’ve been proudly cleaning roofs across Suffolk County since 2006, serving towns like:

• Sayville
• East Setauket
• Smithtown
• Patchogue
• Bay Shore
• Stony Brook
• And many more…

Our team arrives on time, treats your home with care, and guarantees the most thorough cleaning ever—with zero hidden fees.

Let’s Bring Your Roof Back to Life

We understand how discouraging it can feel to see your home’s beauty slowly fade. You work hard to maintain your space—you deserve to feel proud of it. Let us help you get there.

Don't wait for those black streaks to take over.
Let K.O.S. Cleaning restore your roof—and your confidence in your home.

📍 Call (631) 560-8999 today or request your roof cleaning estimate in Suffolk County: