Water damage hits Suffolk County homes differently.
K.O.S. Restoration provides 24/7 water damage restoration throughout Suffolk County, New York — from the South Shore bays to the North Shore and out to the East End. Suffolk stretches roughly 86 miles from the Nassau line to Montauk, and the water problems change with the geography. Knowing where a home sits tells our technicians where hidden moisture is likely hiding — behind knee walls, under finished basements, in crawlspace insulation — before we arrive.
Crews dispatch from Bellport. Find your town on the service-area pages:
- Suffolk County
- The Hamptons & East End
- Nassau County
- Queens
South Shore: Babylon, Islip, Bay Shore, Patchogue, Mastic Beach
Low-lying communities along the Great South Bay and its barrier islands sit in extensive FEMA AE and VE flood zones. Tidal surge, nor'easters, and the lasting effects of Superstorm Sandy make coastal and groundwater flooding a recurring threat. Homes with basements and crawlspaces take on water first.
North Shore: Huntington, Northport, Smithtown, Port Jefferson
Higher ground along the Sound bluffs, but older housing stock, natural springs, and a high groundwater table push moisture into basements and foundations — often without a dramatic storm.
Central Suffolk and the Pine Barrens: Brentwood, Ronkonkoma, Coram
Sandy soil over a sole-source aquifer means a high water table. When it rains hard, groundwater has nowhere to go and finds its way into slabs and below-grade spaces.
The East End: Southampton, Riverhead, the Hamptons, North Fork
Waterfront and seasonal homes, many on wells and septic, where an unnoticed leak in a closed-up house can run for weeks before anyone sees it.
Our Suffolk County response area.
K.O.S. Restoration is based at 11 Farber Drive Unit F in Bellport (11713) — a south-central position in the Town of Brookhaven that keeps the crews close to the county’s most flood-prone corridor.
We answer the phone 24/7 and dispatch the moment you call. During a county-wide storm, response is prioritised by severity and safety.
- 10–20 min
Bellport and the South Shore core
- Patchogue, Bellport, Mastic Beach
- Bay Shore, Islip, Brentwood
- 20–35 min
Mid-county and the North Shore
- Babylon, Smithtown, Commack
- Port Jefferson, Coram, Ronkonkoma
- 35–50 min
Western Suffolk and Riverhead
- Huntington, Northport, Kings Park
- Riverhead
- 45–75 min
The East End
- The Hamptons and the North Fork
- Crews are on the East End daily
Water in your Suffolk County home right now.
Every hour it sits, it spreads. A crew leaves Bellport the moment you call — 24/7, 45 minutes to most of the county.
Serving all of Suffolk County
What our Suffolk County water damage service includes.
Every job follows the IICRC S500 standard for water damage restoration: extraction, moisture mapping, monitored drying, controlled removal of what can’t be saved, mold prevention, and documentation for your claim.
K.O.S. handles all of it except the rebuild, which we scope for your contractor. If mold has already started, the same crews are IICRC-certified for mold remediation.
Emergency water extraction
Truck-mounted and portable equipment removes standing water fast — the hour that decides how much drywall and flooring survives.
Moisture mapping
Thermal imaging and moisture meters find water trapped behind walls, under floors, and in insulation. In Suffolk's post-war capes and finished basements, that's usually more than what's visible.
Structural drying
Commercial air movers and LGR dehumidifiers dry the structure to a verified dry standard — not just the surface — and are monitored daily.
Controlled demolition
Unsalvageable drywall, flooring, and insulation come out to stop damage spreading. Everything else is treated and kept.
Mold prevention
Mold starts within 24–48 hours in Long Island humidity. Moisture is controlled and at-risk materials treated before it does; if it's already there, the same crews are IICRC-certified for mold remediation.
Insurance documentation
Photos, measurements, and a drying log for the whole job, written in Xactimate — the estimate your adjuster's is built from.
Suffolk jobs, dried to the numbers.
Mastic Beach crawlspaces, Quogue basements, Stony Brook flood-cuts — every setup is sized to the room by the IICRC S500 formula, not dropped in the middle of the floor.
Air movers angled across every wet surface, dehumidifiers matched to the space and the moisture load, drying mats for hardwood — and daily readings until the materials read dry.
Recent Suffolk County jobs.
Written up from the crew's own photos and readings — 20 years of Suffolk water losses, from Bellport.
East Hampton, NY · Jun 2026
Pool house flood leads to water damage and mold
A hidden irrigation line leak ran until the crawlspace under the pool house held nearly three feet of standing water. The crew found and stopped the leak, pumped the crawlspace, dried the structure, and remediated the mold that had already started.
View the job
Westhampton, NY · Jun 2026
Emergency water damage restoration after a supply line leak
A bathroom supply line failed and ran through drywall, insulation, ceilings and flooring on multiple levels before anyone noticed — then into the garage and the HVAC ducts. Moisture readings found saturation well past the visible damage; unsalvageable materials came out and commercial drying went in.
View the job
Westhampton Beach, NY · May 2026
Water damage and mold remediation after a pipe break
A hot-water pipe burst in an upper-floor condo, came through the kitchen ceiling of the unit below, and settled in a shared crawlspace. Hardwood near the fireplace read 17.7% — deep saturation — and the crawlspace joists had active mold, so S500 drying became a full S520 remediation.
View the job
Mastic Beach, NY · Mar 2026
Boiler leak and pipe burst water damage
A boiler leak let the pipes under the house freeze and burst; water soaked the hardwood, the subfloor and the joists beneath. The affected areas were contained, drying and dehumidification set up in the crawlspace, and what couldn't be saved removed before mold could start.
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Patchogue, NY · Mar 2026
Water damage restoration after a frozen pipe burst
Staining on the dining room ceiling and a slight cup in the hardwood were the only signs. The real damage had started inside an upstairs wall, where a frozen copper pipe had split and run through insulation, drywall and the floor system before it showed.
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Quogue, NY · Feb 2026
Water damage restoration in Quogue
A failed bathroom connection sent water through the floor system into the kitchen and on down to the basement — three floors from one leak. Extraction, moisture mapping and floor-mat drying saved the hardwood instead of replacing it.
View the job
Insurance handled
We bill your carrier directly with Xactimate — the same software your adjuster uses.
Sudden water damage is covered under most homeowners policies. You pay your deductible; we handle the rest.
- State Farm
- Allstate
- Liberty Mutual
- GEICO
- USAA
- Travelers
- Mercury
- Mutual of Omaha
- Zurich
300+ neighbors have already called.
A 5.0 rating across Suffolk County. Read every review on Google.
Suffolk County water damage questions
What Suffolk homeowners ask on the first call — answered plainly.
How fast can you reach my home in Suffolk County?
From our Bellport shop we reach most South Shore and central-Suffolk homes in 10–35 minutes, and the North Shore and East End the same day. We answer the phone 24/7 and dispatch as fast as conditions allow; during a county-wide storm, calls are prioritised by severity and safety.
Do you work with Suffolk County flood insurance and homeowners claims?
Yes. Much of Suffolk's South Shore sits in FEMA flood zones, and we document every job — photos, moisture readings, and a drying log — to support both flood and homeowners claims. Sudden losses like a burst pipe are usually a homeowners claim; rising groundwater is a flood-policy question, and we'll tell you which you're looking at on the first visit.
My basement floods every heavy rain — is that water damage you handle?
Yes. Recurring groundwater intrusion is common across Suffolk's high-water-table areas, especially south of Montauk Highway and through the Pine Barrens. We extract and dry the space and can advise on moisture control to reduce the risk of it returning.
Do you serve the Hamptons and the North Fork?
Yes — we're on the East End daily, from Westhampton Beach to Montauk and across the North Fork. Seasonal and closed-up homes are a big part of that work: a leak nobody saw for weeks is a different job from a burst pipe found the same morning.
Where in Suffolk County is K.O.S. Restoration based?
11 Farber Drive Unit F, Bellport, NY 11713 — in the Town of Brookhaven, in the middle of the county's most flood-prone corridor. It's a service address; crews meet you at your home.
Water in your home? Every hour counts.
Real person · 24/7 · 45-minute response
Start the clock(631) 560-8999