We Clean & Restore All Exterior Surfaces
Our team of exterior cleaning professionals will beautify your home or business
Where We Work — Long Island’s Trusted Soft Washing Experts
At KOS Cleaning Services, we specialize in soft washing homes and businesses across Suffolk County, with a focus on the East End—including The Hamptons, Montauk, and The North Fork. If your siding or roof is stained with algae, mold, or salt buildup, we’re ready to help restore your property's beauty with safe, damage-free soft washing.
We proudly serve the following Suffolk County towns:
The Hamptons & Montauk:
Southampton • East Hampton • Bridgehampton • Sag Harbor • Water Mill • Amagansett • Montauk • Westhampton Beach • Quogue • Hampton Bays
North Fork & East End:
Greenport • Cutchogue • Mattituck • Southold • Peconic • Orient • Jamesport • Riverhead • Laurel • East Marion
Central & Western Suffolk:
Bohemia • Sayville • Patchogue • Holbrook • Ronkonkoma • Islip • Bay Shore • Smithtown • Hauppauge • Port Jefferson • Medford • Selden • Commack
Not sure if we service your area? Reach out today—contact us for a free estimate. We’re happy to travel!
Top Rated Cleaning Specialists
We guarantee the most thorough cleaning ever, all with zero hidden fees"
Team worked extremely well together and produced the best results throughout our home. All carpets looked new and refreshed. Highly recommended!
KOS Restoration came to clean the ducts at my house after a fire . They were extremely thorough , even went above and beyond by replacing filters in the air ducts that I didn’t even know I had . All the workers were professional... More
KOS Restoration came to clean the ducts at my house after a fire . They were extremely thorough , even went above and beyond by replacing filters in the air ducts that I didn’t even know I had . All the workers were professional and polite , Tom , the owner was amazing. He explained everything in detail and answered every question. I highly recommend this company
Great job done by the entire KOS team! On time, clean, and professional.
Very knowledgeable and great to work with!
On time. Clean. Professional. Thanks
Highly recommended Arrived on time: cleaned cedar house and pavers on the property. Big dirty job was done beyond expectations. Brandon was a patient , pleasant guy and Kamil was a pro. Everything looks refreshed for the... More
Highly recommended Arrived on time: cleaned cedar house and pavers on the property. Big dirty job was done beyond expectations. Brandon was a patient , pleasant guy and Kamil was a pro. Everything looks refreshed for the summer . Very happy. I called KOS. 5 stars
We cannot recommend KOS highly enough. From the moment they arrived, it was clear we were working with professionals who truly care about their clients. Not only were they polite, thorough, and respectful of our home, but... More
We cannot recommend KOS highly enough. From the moment they arrived, it was clear we were working with professionals who truly care about their clients. Not only were they polite, thorough, and respectful of our home, but they were also the only company to detect additional mold damage that we were completely unaware of, damage that other companies overlooked entirely. Their findings prompted us to call our home inspector back to re-evaluate the situation. What truly stood out was their honesty and compassion. They explained everything in clear, understandable terms and never pressured us into unnecessary services. In an incredibly generous gesture, they loaned us an air purification machine free of charge while we coordinated additional work with another contractor. The team was fast, efficient, and left the space spotless. Every staff member we encountered was pleasant, knowledgeable, and professional. It’s rare to find a company that blends technical expertise with genuine kindness and integrity but KOS does just that. If you're dealing with mold or air quality issues, look no further. This is the team you can trust! Thank you.
Tom and his crew did an incredible job at our home. He was the only one to discover mold in our HVAC system after going through our basement. Our mold situation was taken care of then some. Very thorough and truly treated... More
Tom and his crew did an incredible job at our home. He was the only one to discover mold in our HVAC system after going through our basement. Our mold situation was taken care of then some. Very thorough and truly treated our home as if it was his own.
Steve and Brandon did an excellent job! We love the quality at KOS
KOS did an amazing job with the mold remediation at my client's home for a very reasonable price.
I had a sudden leak from the upstairs shower that traveled down to my garage. Erick showed up within the hour! After looking over the damage we went over everything in detail that he found as well as what the process for... More
I had a sudden leak from the upstairs shower that traveled down to my garage. Erick showed up within the hour! After looking over the damage we went over everything in detail that he found as well as what the process for remediation would look like to prevent further moisture and mold. The KOS crew arrived the day of and immediately started working. The office was wonderful in helping with speaking to insurance and helping get payment from them. Couldn’t recommend them highly enough! Thank you KOS RESTORATION!
KOS Cleaning and Restoration came out and did a bid on water damage in my crawl space from a broken water sewer line. Tom came within the hour gave us the most fair bid. The team arrived shortly after to start working. We... More
KOS Cleaning and Restoration came out and did a bid on water damage in my crawl space from a broken water sewer line. Tom came within the hour gave us the most fair bid. The team arrived shortly after to start working. We went with them as they explained in detail the work scope and approximate completion date. Work was done in a professional manner. This included removal of water and muck out. Install fans and humidifier until dry. Installed new vapor barrier. I'm a retired homeowner with 2 properties I know good work when I see it. Workers were knowledgeable and polite. l'd highly recommend this company.
KOS Cleaning and Restoration is everything you could ask for and a family owned business!!! We had some mold issues pop up in our attic on an inspection report during the sale of our home. We had 3 different companies come... More
KOS Cleaning and Restoration is everything you could ask for and a family owned business!!! We had some mold issues pop up in our attic on an inspection report during the sale of our home. We had 3 different companies come out to provide an evaluation for us. We went with KOS and the quote was free, they were right on time and super communicative! Tom personally called me throughout the process and kept me updated every step of the way. They truly make you feel like the most important person to them and as someone who deals with contractors every day, my husband and I can honestly say we were so impressed by their professionalism, attention to detail and quality of work. Thank you again to this amazing company!!
Tom from KOS Restoration was very helpful and kind. I was so scared we had a mold problem in our house after discovering some blackened wood behind our drywall. They picked up the phone promptly and got someone out to look... More
Tom from KOS Restoration was very helpful and kind. I was so scared we had a mold problem in our house after discovering some blackened wood behind our drywall. They picked up the phone promptly and got someone out to look at our issue the same day. The team showed care and concern that we had small children in the house and wanted to solve our problem asap. Extremely impressed and pleased with this company. They went above and beyond what was expected to inspect and remediate mold. Helped us with other issues that we had questions with around our house. Knowledgable, prompt, and kind to work with
Buying a new home is stressful enough but when we found mold in the kitchen it knocked that stress level. We were very lucky to have found KOS Restoration. Tom was open and upfront about the steps that had to completed and... More
Buying a new home is stressful enough but when we found mold in the kitchen it knocked that stress level. We were very lucky to have found KOS Restoration. Tom was open and upfront about the steps that had to completed and their potential costs. Tom was knowledgeable about the why, what and how for the process. The crew was professional through and through. Constantly kept us up to date of what was happening. They were more than tolerant of the numerous questions that was asked. I would highly recommend them to anyone looking for mold remediation work in the area and any families going through this stressful process. Thank you KOS Restoration!
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Soft Washing FAQ's
What surfaces can be soft washed?
Soft washing is ideal for delicate exterior surfaces that could be damaged by high pressure. This includes vinyl siding, painted wood, stucco, brick, stone, fencing, patios, outdoor furniture, and asphalt shingles. It's a safe way to remove mold, algae, and grime without harming the surface.
Is soft washing better than pressure washing?
It depends on the surface. Soft washing is the preferred method for surfaces that need a gentle touch—like roofs, siding, and screens—while pressure washing is better for hard surfaces like concrete and pavers. Our team will always recommend the safest and most effective method for your home.
How long does soft washing last?
Most homes only need to be soft washed every 1 to 2 years. The results typically last longer than pressure washing because soft washing kills mold and algae at the root, rather than just rinsing it away.
Will soft washing damage my landscaping?
We take every precaution to protect your plants and landscaping. Our cleaning solutions are applied carefully. Before we begin, we pre-rinse and protect surrounding vegetation to ensure your yard stays healthy and safe.
How long does a soft washing service take?
Most residential soft washing projects can be completed in a few hours or less, depending on the size of the home and which surfaces we’re treating. Larger or multi-surface jobs may take longer, but we’ll always provide an estimate beforehand.
Is soft washing safe for older or historic homes?
Yes! In fact, it’s often the only safe method for older homes. High-pressure washing can cause paint to peel or siding to warp. Soft washing gently removes contaminants without compromising the structure or integrity of your home.
How much does soft washing cost?
Every property is different, so we provide personalized estimates based on your home’s size and condition. What we do guarantee: no hidden fees, fair pricing, and the most thorough clean possible. Contact us for a free estimate.
Do you offer soft washing for commercial buildings?
Yes, we do. Our team has experience soft washing restaurants, office buildings, retail storefronts, HOA communities, and more throughout Nassau and Suffolk County. We’re fully insured and offer convenient scheduling to minimize disruption to your business.
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