Area guideWesthampton Beach

Water Damage Restoration Help in Westhampton Beach, NY

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The village of Westhampton Beach · Town of Southampton

Water in the basement, a burst pipe, or sewage backing up into the house? Call and we'll connect you with a local specialist who covers Westhampton Beach, even if you don't know the cause yet.

Water doesn't stay where it lands. It soaks into drywall, insulation and flooring, and mold can start within 24 to 48 hours.

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Since 1978, federal flood insurance has paid $48.9 million on 1,773 claims in ZIP 11978, which takes in Westhampton Beach, so water has reached homes here before.

Westhampton Beach at a glanceTap a figure to see it on the map

Flood risk: Very High

Flood zone. 802 of the 2,249 addresses here are inside FEMA's mapped flood zone. 216 more are within about 100 ft of its edge.

If your home is in it, most mortgage lenders must require flood insurance. That is a separate policy from homeowner's insurance, which usually covers a burst pipe or leaking appliance.

Look up your street

The percentage above counts all developed land, including lawns, parks and roads, not just homes.

Each square is about 500 ft across. Color shows how many of its addresses are mapped inside the zone:

Fewer than half
Half or more
All

Groundwater. At 1,368 of the 2,229 addresses measured here, groundwater is within 14 ft of the surface, close enough to reach a basement floor.

In those basements, water can seep up through the floor and come back after pumping until the ground drains. The 861 measured deeper are the exception.

20 addresses fall where the groundwater map has no reading.

Each square is about 500 ft across. Color shows the typical depth under its addresses (USGS map, spring 2013):

Within 10 ft1,115
10 to 14 ft253
14 to 25 ft475
Deeper than 25 ft386

What is happening at your home?

Cesspool Overflow Cesspool sewage backing up into the house? Get help in Westhampton Beach Basement Flooding Water coming up through the basement floor or walls? Get help in Westhampton Beach Frozen Pipe Burst Pipe burst, or water running from a wall or ceiling? Get help in Westhampton Beach Sump Pump Failure Sump pump stopped, or the pit filling faster than it empties? Get help in Westhampton Beach

Other water emergencies we cover

Appliance Leak Cleanup Ceiling & Roof Leak Water Damage Mold Remediation Storm Damage Restoration Toilet Overflow Cleanup Water Heater Leak

Not sure which one fits? Call (631) 440-4144 and tell us what you see.

Why water gets into Westhampton Beach homes

Westhampton Beach has two kinds of water risk. Outside, a hurricane or a hard nor'easter can drive surge into homes; inside the house, the risks are a cesspool backing up, groundwater coming up into the basement, pipes bursting in the cold and an aging pipe giving way.

Water coming in from outside. After surge water recedes, anything porous it touched (drywall, insulation, carpet) normally comes out, and photos taken before cleanup make the flood claim easier. Westhampton Beach sits in the path of storm surge: in a hurricane or a strong nor'easter, water from Moniebogue Bay can be pushed into streets and ground floors, and 42.3% of its built-up land is in FEMA's flood zone. Look up your street. Storm Damage Restoration help
Sewage coming up a drain. Sewage in the house is contaminated water, so it needs a crew that cleans, disinfects and dries, not a mop and a fan. Homes in Westhampton Beach treat their own wastewater in a cesspool or septic tank, so when the system is full, slow drains and gurgling pipes come before sewage in the lowest drain. Public sewer reaches about 1% of Westhampton Beach; the rest of its homes rely on cesspools, so knowing which one you have tells you where a backup started. Cesspool Overflow help in Westhampton Beach
Water in the basement. Pumping the water out is only half the job: the basement has to be dried and the source handled, usually with a sump pump or sealing, or the water comes back. Groundwater sits about 12 ft below the yard in Westhampton Beach, close enough to seep up through a basement floor after heavy rain or in a high-water season. Basement Flooding help in Westhampton Beach
A burst pipe. Roughly 57% of the houses in Westhampton Beach are seasonal or vacant much of the year, so a winter burst can go unnoticed until the owner comes back; a closed main valve and heat set to at least 55°F are the two steps that prevent it. Frozen Pipe Burst help in Westhampton Beach
A leak in a wall or ceiling. Mold can start on wet drywall within a day or two, so a slow leak needs the wall opened and dried, not just the pipe fixed. Homes in Westhampton Beach average about 45 years old, so original valves, supply lines and water heaters are worth checking before one of them lets go. Ceiling & Roof Leak Water Damage help

Insurance and safety guidance from FEMA FloodSmart, the CDC and the Red Cross. How we measured the figures.

Street by street in Westhampton Beach

Look up your street in Westhampton Beach

See how many of its addresses are mapped inside the FEMA flood zone and how deep groundwater is mapped under it.

93 streets, from county address records. Nothing you type is sent anywhere.

Check a house number in Westhampton Beach

Streets inside the FEMA flood zone

802 of 2,249 address points in Westhampton Beach are mapped inside a FEMA special flood hazard area. These streets hold the most of them:

Dune Rd — 278 of 347 addresses
Mitchell Rd — 47 of 62 addresses
Beach Ln — 32 of 56 addresses
Point Rd — 31 of 31 addresses
Jessup Ln — 29 of 31 addresses
Harbor Rd — 25 of 25 addresses
Meadow Ln — 24 of 28 addresses
Main St — 24 of 96 addresses

How streets are counted

Quick facts — Westhampton Beach

Flood and storm

FEMA flood zone: AE (100-yr floodplain)
Hurricane evacuation zone: Zone A Zones run A to E. A evacuates first.
Hurricane Sandy high-water mark: 6.4 ft The highest of 2 marks USGS surveyed in Westhampton Beach after the 2012 storm, in feet above the NAVD88 datum — a reading at one point, not a level across all of Westhampton Beach. Ground elevation here averages 12 ft on the same datum.
Water nearby: Moniebogue Bay to the east, Quantuck Canal to the south-east and Moriches Bay to the south. Each direction is to its nearest point, from the center of Westhampton Beach.

All 7 named water features

North-east: Aspatuck River
East: Moniebogue Bay, Quantuck Bay
South-east: Quantuck Canal
South: Moriches Bay, Atlantic Ocean
South-west: Oneck Drain

In an emergency

Nearest fire department: Westhampton Beach Fire Department
ZIP code: 11978

Homes here

Sewer status: Unsewered (Cesspool/Septic)
When homes were built: Spread across decades The highlighted 1970s band is the largest, at 17%, but its lead over the 1960s band (15%) is inside the Census margin of error (4 points), so no decade clearly leads in Westhampton Beach. Most homes here are over 30 years old. Past that age, an insurance-industry study (IBHS) found supply and drain pipe problems three times as likely.

Westhampton Beach's land area

FEMA coastal wave zone (VE)
FEMA 100-year floodplain (AE)
The flood-zone figure above says how much of the land these zones cover.

Sources: FEMA NFHL / NOAA SLOSH, US Census ACS, USDA SSURGO, Suffolk County records. Verified 2026-10-18. How we measured this.

Westhampton Beach and nearby areas

1 of the other 4 areas compared here has a larger mapped floodplain share than Westhampton Beach.

West Hampton Dunes 99.7%
Westhampton Beach 42.3%
Quogue 33.8%
Quiogue 20.1%
Westhampton 10.2%

Share of developed area inside FEMA's mapped floodplain, largest first.

1 of the other 4 areas compared here has shallower average groundwater than Westhampton Beach.

West Hampton Dunes 8 ft
Westhampton Beach 12 ft
Quiogue 14 ft
Quogue 15 ft
Westhampton 29 ft

Average depth to groundwater, shallowest first.

1 of the other 4 areas compared here has lower average ground than Westhampton Beach.

West Hampton Dunes 6 ft
Westhampton Beach 12 ft
Quiogue 17 ft
Quogue 17 ft
Westhampton 39 ft

Average height above sea level, lowest first.

Westhampton Beach's seasonal-housing share is 57%, close to the 62% average across the 4 areas around it — a typical reading for the area rather than an outlier.

Compared with the areas around Westhampton Beach. How we measured them.

Frequently asked questions about Westhampton Beach

Is Westhampton Beach in a flood zone?

Westhampton Beach's FEMA-mapped flood zone is AE (100-yr floodplain), covering about 42.3% of the developed area, per FEMA's flood map (NFHL).

Does Westhampton Beach have public sewer, or cesspools?

Westhampton Beach is unsewered — nearly every property runs on its own cesspool or septic system.

Is Westhampton Beach in a hurricane evacuation zone?

Westhampton Beach falls in Suffolk County hurricane evacuation Zone A. Check the county's current maps before a named storm — zones are what county officials use when ordering evacuations.

How deep is the water table in Westhampton Beach?

The measured water table runs about 12 ft below the surface on average across Westhampton Beach. It is mapped within 10 ft at 1,115 of 2,249 addresses and within 25 ft at 1,843.

See all FAQs

About the figures for Westhampton Beach

Check them at the source

Who to call for water damage in Westhampton Beach

(631) 440-4144

Tell us what is happening. We connect you with a local specialist who covers Westhampton Beach.