May 27, 2025

Why Soft Washing Works Best for Siding

Soft Washing Is The Safe & Gentle Way To Restore Your Curb Appeal.

You walk outside and… ugh.

There it is—green streaks, black patches, and a layer of grime clinging to your siding.
You might feel embarrassed, or just frustrated you can’t clean it off with the hose.

We hear this all the time from Suffolk County homeowners.

Whether it’s mold, algae, or just years of buildup, dirty siding can make your home look older than it is. But blasting it with high-pressure water can cause more harm than good. That’s why soft washing is the better option—and it’s what we specialize in here at K.O.S. Cleaning.

What Is Soft Washing, Really?

Soft washing is a safe, low-pressure cleaning method that uses gentle water pressure combined with eco-friendly cleaning solutions to:

  • Kill algae, mold, and mildew at the source
  • Loosen dirt and stains
  • Protect delicate surfaces like vinyl, cedar, and stucco


It’s like giving your house a bath—with the right soap and no scrubbing damage.


Why Pressure Washing Isn’t Always the Answer

We’ve seen it happen too many times: someone rents a power washer and blasts away the dirt—along with paint, siding layers, or sealant.


That might work for concrete, but your siding isn’t built for that kind of force.


Soft washing protects your home while still delivering spotless results. And it lasts longer because it treats the root of the problem—not just the surface.

Technician soft washing green algae from vinyl siding on a Suffolk County home

What We Clean with Soft Washing

  • Vinyl siding
  • Painted wood
  • Cedar shake shingles
  • Stucco and EIFS exteriors
  • Aluminum siding
  • Stone veneer and composite panels


If you’re not sure what kind of siding you have, don’t worry. We’ll take a look and walk you through the safest, most effective way to clean it.


Safe for Your Home—and the Environment

Our biodegradable cleaning solutions break down safely after use and won’t harm your landscaping. No runoff into your plants or pets' play areas. It’s one more way we help protect what matters most to you.


Local Experts You Can Trust

We’ve been soft washing siding across Suffolk County since 2006. From Bayport to Centereach, we know the materials, the weather conditions, and the challenges local homeowners face.


Whether your siding has black streaks, green fuzz, or just looks dingy—we can help.


Don’t Let Dirty Siding Bring Down Your Curb Appeal

Your home deserves to look just as clean on the outside as it is on the inside.
Let us take the stress (and the ladder) off your hands.


📞 Request your free estimate today or call (631) 560-8999 to speak to a soft washing expert.

Request An Estimate

Soft Washing FAQ's

  • Is soft washing safe for older or historic homes?

    Yes. Soft washing is ideal for older or delicate materials because it uses low pressure combined with safe, effective detergents. It’s commonly used on cedar shakes, painted wood, and vintage stucco—making it perfect for historic homes in Suffolk County.

  • How long do soft washing results last on siding?

    Typically, soft washing results can last between 12 to 18 months, depending on environmental conditions. Because it treats mold, algae, and mildew at the root, it keeps siding cleaner longer than high-pressure rinses.

  • Can soft washing remove mold from siding?

    Yes! Soft washing doesn’t just rinse mold off the surface—it kills it at the source. This helps prevent regrowth and keeps your siding looking fresh longer.

  • What’s the difference between pressure washing and soft washing siding?

    Pressure washing uses high force to blast away dirt, which can damage siding materials. Soft washing uses gentle water pressure and specialized cleaning solutions to safely remove buildup without causing any wear or water intrusion.

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