From Babylon and Huntington to Montauk
Water Damage Restoration in Suffolk County
Suffolk County stretches more than 80 miles, from the Nassau line to Montauk Point and Orient, across ten towns and about 1.5 million people. Water damage here looks different from the rest of the metro area: most homes rely on cesspools or septic systems, the Great South Bay and the Sound bring coastal flooding, and the East End has thousands of seasonal homes that sit empty in winter.
Suffolk County at a glance
- Towns
- Babylon, Brookhaven, Huntington, Islip, Smithtown and the five East End towns
- Homes on cesspools or septic
- About 74% (Suffolk County)
- Contractor licensing
- Suffolk County Dept. of Labor, Licensing & Consumer Affairs
Answered 24/7 · free to call
Local pages
Water damage help by community in Suffolk County
Each page covers the local water damage risks, ZIP codes and first steps for that community.
Water damage risks across Suffolk
Cesspool and septic backups
According to Suffolk County, about 360,000 homes, roughly 74%, are not connected to a sewer. When a cesspool fills up or the ground around it is saturated by heavy rain or high groundwater, wastewater backs up into the lowest drain in the house, usually in the basement. Stop using water, and call a cesspool service company to pump and inspect the system, as well as a restoration company for the cleanup.
Flash flooding inland
The August 2014 storm that dropped 13.57 inches on Islip in 24 hours, the New York State record, flooded homes and roads across central Suffolk, including Bay Shore, Brentwood, Central Islip and Ronkonkoma. Inland flooding happens when storm drains and recharge basins cannot keep up, not only near the water.
South Shore and Fire Island
From Lindenhurst and Babylon to Mastic Beach and Fire Island, the South Shore faces surge and tidal flooding. Sandy flooded thousands of homes along the Great South Bay in 2012.
East End second homes
In the Hamptons, the North Fork and Shelter Island, many houses sit empty for weeks at a time in winter. A pipe that bursts in an empty house can run until someone checks in, which turns a small repair into a whole-house job. Water sensors, remote thermostats and automatic shut-off valves are worth the cost.
Water service and shut-offs
The Suffolk County Water Authority supplies most of the county, with some areas served by local water districts or private wells, especially on the East End. Your provider is on your water bill, and it can shut off the curb valve if your inside main valve fails. Homes on private wells can stop the flow by turning off the well pump at its breaker.
Choosing a restoration company in Suffolk
- Ask for the company’s Suffolk County home improvement license, issued by the Department of Labor, Licensing and Consumer Affairs.
- For cesspool backups, expect the restoration team to treat the water as Category 3 (contaminated) and remove porous materials it touched.
- Ask how the team will dry finished basements, including behind the walls.
- If mold over 10 square feet is involved, New York requires a licensed mold assessor and a separate licensed remediator.
Septic upgrades after a backup
If your cesspool has failed, Suffolk County’s septic improvement program offers grants toward replacing old systems with innovative, nitrogen-reducing systems. A licensed septic or cesspool company can tell you whether your property qualifies. It is worth asking about before you simply replace a failed cesspool with another one.
Every community we take calls from in Suffolk County
This is the full list of Suffolk County communities covered. If yours is not listed, call anyway: the team will tell you right away whether it can help.
| Community | ZIP codes |
|---|---|
| Amagansett | 11930 |
| Amityville | 11701 |
| Aquebogue | 11931 |
| Babylon | 11702 |
| Bay Shore | 11706 |
| Bayport | 11705 |
| Bellport | 11713 |
| Blue Point | 11715 |
| Bohemia | 11716 |
| Brentwood | 11717 |
| Bridgehampton | 11932 |
| Brightwaters | 11718 |
| Brookhaven | 11719 |
| Calverton | 11933 |
| Center Moriches | 11934 |
| Centereach | 11720 |
| Centerport | 11721 |
| Central Islip | 11722 |
| Cold Spring Harbor | 11724 |
| Commack | 11725 |
| Copiague | 11726 |
| Coram | 11727 |
| Cutchogue | 11935 |
| Deer Park | 11729 |
| East Hampton | 11937 |
| East Islip | 11730 |
| East Marion | 11939 |
| East Moriches | 11940 |
| East Northport | 11731 |
| East Quogue | 11942 |
| East Setauket | 11733 |
| Eastport | 11941 |
| Farmingville | 11738 |
| Fishers Island | 06390 |
| Great River | 11739 |
| Greenlawn | 11740 |
| Greenport | 11944 |
| Hampton Bays | 11946 |
| Hauppauge | 11788 |
| Holbrook | 11741 |
| Holtsville | 11742 |
| Huntington | 11743 |
| Huntington Station | 11746 |
| Islandia | 11749 |
| Islip | 11751 |
| Islip Terrace | 11752 |
| Jamesport | 11947 |
| Kings Park | 11754 |
| Lake Grove | 11755 |
| Laurel | 11948 |
| Lindenhurst | 11757 |
| Manorville | 11949 |
| Mastic | 11950 |
| Mastic Beach | 11951 |
| Mattituck | 11952 |
| Medford | 11763 |
| Melville | 11747 |
| Middle Island | 11953 |
| Miller Place | 11764 |
| Montauk | 11954 |
| Moriches | 11955 |
| Mount Sinai | 11766 |
| Nesconset | 11767 |
| New Suffolk | 11956 |
| North Babylon | 11703 |
| Northport | 11768 |
| Noyack | 11963 (shared ZIP) |
| Oakdale | 11769 |
| Ocean Beach | 11770 |
| Orient | 11957 |
| Patchogue | 11772 |
| Peconic | 11958 |
| Port Jefferson | 11777 |
| Port Jefferson Station | 11776 |
| Quogue | 11959 |
| Remsenburg | 11960 |
| Ridge | 11961 |
| Riverhead | 11901 |
| Rocky Point | 11778 |
| Ronkonkoma | 11779 |
| Sag Harbor | 11963 |
| Sagaponack | 11962 |
| Saint James | 11780 |
| Sayville | 11782 |
| Selden | 11784 |
| Shelter Island | 11964 |
| Shelter Island Heights | 11965 |
| Shirley | 11967 |
| Shoreham | 11786 |
| Smithtown | 11787 |
| Sound Beach | 11789 |
| South Jamesport | 11970 |
| Southampton | 11968 |
| Southold | 11971 |
| Speonk | 11972 |
| Stony Brook | 11790, 11794 |
| Upton | 11973 |
| Wading River | 11792 |
| Wainscott | 11975 |
| Water Mill | 11976 |
| West Babylon | 11704 |
| West Islip | 11795 |
| West Sayville | 11796 |
| Westhampton | 11977 |
| Westhampton Beach | 11978 |
| Wyandanch | 11798 |
| Yaphank | 11980 |
Common questions
Water damage in Suffolk County: common questions
Do you serve the Hamptons and the North Fork?
Yes, calls are accepted from across Suffolk, including the South Fork, North Fork and Shelter Island. The full list of communities and ZIP codes is below, and our Hamptons page covers second-home and coastal risks on the South Fork.
My basement drain backed up and I have a cesspool. Who do I call?
Stop using water first. Then call a cesspool or septic service company to pump and inspect the system, and a restoration company to clean up and disinfect the basement. Backups are contaminated water, so porous materials they touched usually need to be removed.
Does Suffolk County license restoration contractors?
Companies doing home improvement work on residential property must hold a license from the Suffolk County Department of Labor, Licensing and Consumer Affairs. Ask for the license number before signing.
Is cesspool backup damage covered by insurance?
Usually only if you have a water backup endorsement on your homeowners policy. Damage from a system that failed from age or lack of maintenance may be limited. Check your policy and call your agent.
How do I protect a second home from burst pipes?
Keep the heat at 55°F or more, shut off and drain the water if the house will be empty for a long time, install a water leak sensor or automatic shut-off valve, and have someone check the house after severe cold.
Local water damage help in Suffolk County
Call (800) 000-0000, 24 hours a day, 7 days a week.
