Water damage on the East End is its own problem.
The Hamptons and the Twin Forks aren’t like the rest of Long Island. Waterfront exposure, older and architecturally complex homes, and long stretches of vacancy change how water damage happens — and how fast it has to be found. K.O.S. Restoration has worked the East End from Bellport since 2006; it’s part of our Suffolk County coverage, and a different job.
Crews dispatch from Bellport. Find your town on the service-area pages:
- Suffolk County
- The Hamptons & East End
- Nassau County
- Queens
Seasonal and second homes
A house closed up for the off-season can run a burst pipe, a failed appliance, or a roof leak for weeks before anyone notices — a small leak becomes a major loss and a mold job. Early detection is everything, and we coordinate with property managers as readily as owners.
Waterfront and flood exposure
Southampton, Montauk, Sag Harbor and the bay towns sit in FEMA flood zones. Storm surge, nor'easters and a high water table put basements, crawlspaces and ground floors at risk every season.
High-value, complex homes
Finished basements, wine rooms, custom millwork and specialty flooring need careful, documented restoration — and discretion. We work cleanly, keep the site tight, and communicate with owners, managers and caretakers.
Wells, septic and salt air
Many East End homes run on wells and septic, and coastal humidity keeps everything damp. Moisture that lingers becomes mold, so thorough, verified drying matters more here than almost anywhere on the Island.
Getting to the East End.
Crews leave Bellport for the Hamptons and the North Fork every day — it’s a regular run, not a special trip. Times below are typical off-season; summer traffic on 27 adds to the far end.
We answer the phone 24/7 and dispatch the moment you call. For a closed-up house, we’ll meet your manager or caretaker on site.
- ≈ 45 min
West of the canal
- Westhampton, Westhampton Beach, Quogue
- East Quogue, Remsenburg, Speonk
- ≈ 1 hr
Southampton to Bridgehampton
- Hampton Bays, Southampton, Water Mill
- Bridgehampton, Sagaponack
- ≈ 75 min
East Hampton to Montauk
- Wainscott, East Hampton, Sag Harbor
- Amagansett, Montauk
- North Fork
Riverhead to Orient
- Riverhead, Aquebogue, Jamesport, Mattituck
- Cutchogue, Southold, Greenport, Orient
Water in your East End home right now.
Every hour it sits, it spreads — and in a house no one’s watching, it’s been sitting a while. A crew leaves Bellport the moment you call, 24/7.
Serving the Hamptons and the East End
What our East End 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 — common in a home that sat closed — the same crews handle mold remediation in the same engagement.
Emergency water extraction
Truck-mounted and portable equipment removes standing water fast — and on a closed-up house, that often means pumping a crawlspace that's been filling for weeks.
Moisture mapping
Thermal imaging and moisture meters find water hidden behind walls, under floors and in insulation — critical in a home no one has been watching, where the visible damage is rarely the whole story.
Structural drying
Commercial air movers and LGR dehumidifiers dry the structure to a verified dry standard, monitored daily — not just the surface, and not on a schedule.
Controlled demolition
Unsalvageable materials come out to stop the damage spreading. Custom millwork, specialty flooring and finished spaces are documented and protected before anything is cut.
Mold prevention
Mold starts within 24–48 hours in coastal 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 — and shared with your property manager if that's who's handling the claim.
East End jobs, dried to the numbers.
Quogue basements and hardwood, Westhampton Beach condos under containment — every setup is sized to the room by the IICRC S500 formula and checked daily until the materials read dry.
Air movers angled across every wet surface, dehumidifiers matched to the space and the moisture load, drying mats for hardwood — and, where a crawlspace will always be damp, encapsulation over the cleaned framing.
Recent East End jobs.
Written up from the crew's own photos and readings — 20 years of Hamptons 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
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
Westhampton, NY · Feb 2026
Basement mold remediation after a water heater leak
Water on the floor by the heater looked minor. Moisture had already got into the flooring and the lower walls, and mold had grown out of sight. The basement was contained, dried, the contaminated materials removed, and the space HEPA-cleaned.
View the job
Sag Harbor, NY · Jul 2025
Sag Harbor home hit with water and mold damage after an HVAC leak
An HVAC drain line leaked long enough to reach the bedroom, bathroom and kitchen — floors, ceilings and walls — and grow mold before anyone saw it. Drying to stabilise the house first, then remediation, then encapsulation of the framing so a humid Sag Harbor summer couldn't restart 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; rising water on the bays is usually a flood policy. We document both the same way, bill your carrier directly, and copy your property manager on everything.
- 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.
Hamptons water damage questions
What East End owners and property managers ask on the first call — answered plainly.
Can you check on a seasonal home while we're away?
Yes. If you or your property manager suspect a leak in a closed-up house, we inspect, find the hidden moisture, and handle any water damage — and coordinate directly with whoever manages the property, from the first visit to the final readings.
How fast can you get to the East End?
We're on the Hamptons and the North Fork daily. Drive time from our Bellport shop runs roughly 45 minutes to Westhampton and about 75 to Montauk, depending on the town and the season; we're available 24/7 for emergencies.
Do you work with flood and homeowners insurance out here?
Yes. Much of the East End sits in FEMA flood zones, and we document every job — photos, moisture readings, and a drying log — to support your claim. Sudden losses like a burst pipe are usually a homeowners claim; rising water is a flood-policy question, and we'll tell you which you're looking at on the first visit.
Will the work be discreet?
Yes. Unmarked containment inside, a tidy site outside, and one point of contact for the owner, the manager, or the caretaker — whoever you tell us to work with. Finished spaces, millwork and specialty flooring are documented and protected before anything is removed.
Do you also handle mold?
Yes — water damage in a closed-up East End home often becomes a mold job before anyone sees it. The same crews are IICRC-certified for mold remediation, so drying and remediation happen in one engagement.
Water damage on the East End? Call now.
Real person · 24/7 · 45-minute response
Start the clock(631) 560-8999