A failed basement pump means water has nowhere to go but the floor — whether it is a sump pump holding back groundwater or an ejector pump serving a basement bathroom. We connect you with a local specialist who handles it.
Why speed matters with a failed sump or ejector pump
A sump pump can fail from a power outage, a stuck float switch, or a worn motor — and it usually happens during the exact storm that needs it most. A sewage ejector pump under a basement bathroom fails differently and is a Category 3 problem when it does.
When you call, we connect you with a local specialist who will establish which pump has failed, clear the discharge line, and dry what the failure let in.
Call now, or can it wait?
Call now if
The pit is full or overflowing and the pump is not running.
It is raining heavily and the pump has stopped.
The ejector pump under a basement bathroom has failed — stop using that bathroom until it is fixed.
It can usually wait for a scheduled visit if
The pump runs but cycles more often than usual in dry weather.
It is noisy or vibrating but still moving water.
What Suffolk County measures for sump pump failure
A sump pump in Suffolk County is working against a water table with a county median around 31 ft. Where groundwater sits within about 16 ft of the surface it can reach a pit floor, and the pump runs in ordinary weather rather than only after rain. That is the case under half or more of the addresses in 48 of the 155 areas we cover.
70 of 155 areas carry high or very high storm surge exposure — worth separating, because a sump pump handles seepage and rain, not surge.
Sump Pump Failure drivers across Suffolk County, town by town
Town
Areas
Water table ≤ 25 ft
Median water table
Median in FEMA flood zone
Babylon
13
11
12 ft
0%
Brookhaven
44
10
46 ft
1%
East Hampton
8
2
36 ft
8%
Huntington
20
1
100 ft
0%
Islip
23
17
13 ft
4%
Riverhead
7
4
25 ft
2%
Shelter Island
2
0
30 ft
9%
Smithtown
8
1
83 ft
1%
Southampton
20
8
26 ft
12%
Southold
10
8
20 ft
11%
Counts and medians of the areas we cover in each town, measured over developed land. An
area spanning two towns is counted under the first. Your own street can differ — each
area page has its own figures. Sources and limits.
What the sump pump failure job actually involves
So you know what you are agreeing to, and can tell a thorough quote from a cheap one.
Confirm whether the fault is power, float, impeller or discharge.
Clear the pit and the discharge line.
Repair or replace, and size the replacement to the recharge rate rather than to the old unit.
Advise on a backup — battery or water-powered — since loss of power is the common failure.
On an ejector, check the check valve and the basin seal before the pump: a failed check valve sends the same waste back down after every cycle, and a failed seal is what you smell.
Separate the pump from the damage. Replacing a failed pump is plumbing and sometimes electrical work; extracting and drying what its failure let into the basement is restoration work. They are commonly quoted together and are not the same job.
What makes it worse
Replacing the pump when the float switch or a frozen discharge line was the fault.
Running the discharge a few feet from the foundation, which recirculates.
Leaving no backup on a house that depends on the pump.
Never testing it. The failure is silent until the water arrives.
Flushing wipes into a basement bathroom. Ejector impellers seize on them, and it is an avoidable failure on that pump.
Rules and programs worth knowing in Suffolk County
Where a sump pump may and may not discharge
If your home is connected to a Suffolk County sewer district, the sump pump must not discharge into the sanitary sewer. County code makes it illegal (Chapter 740, §740-25), and the county's sewer permit also bars groundwater, roof runoff and storm drainage from its sewers.
Discharge outdoors instead, far enough from the foundation that the water does not cycle straight back into the pit, and not onto a neighbor's property.
Sump pump failure and the resulting water damage are commonly excluded unless you carry a specific sump overflow or water backup endorsement. The same endorsement is usually what covers an ejector backup, and the two are worth asking about together. Worth checking the wording before a storm rather than after.
General guidance, not advice on your policy — coverage varies by insurer and endorsement, and
the wording is what decides it. Read yours, or ask your agent, before you need to.
Signs you need sump pump failure help now
Sump pump running but not moving water
No sound from the pit during heavy rain
Water rising in the sump pit
A tripped breaker or dead pump motor
Water pooling near the foundation after rain
A basement toilet or shower backing up while the fixtures upstairs drain normally — that is the ejector pump, not the sump
What to do before help arrives
Worth doing whether or not you call us.
Check the breaker and the outlet first — a tripped GFCI is a common cause of a 'failed' pump.
Lift the float by hand. If the pump runs, the switch is the fault, not the motor.
Check the discharge line outside for a blockage or ice; a pump running against a closed pipe burns out.
Clear debris from the pit — gravel and silt jam impellers.
If the pit is filling faster than you can bail, get the water out first and diagnose after.
Establish which pump it is. A sump sits in an open pit and moves groundwater; a sewage ejector sits in a sealed basin and moves waste from a basement bathroom. If it is the ejector, stop using the basement fixtures and treat what surfaces as Category 3.
How to keep it from happening again
Test it every few months: pour water into the pit until the float lifts and the pump empties it.
Keep the discharge line clear, and protect its outdoor end from freezing.
Fit a battery or water-powered backup — power loss during a storm is a common failure.
Keep silt and gravel out of the pit.
Know the pump's age and plan a replacement, rather than finding out during a storm.
Sump Pump Failure: common questions
How do I check that my sump pump works?
Pour a bucket of water slowly into the pit. The float should rise, the pump should start, and the water level should drop before it shuts off. If it hums without moving water, runs without stopping, or does not start at all, have it looked at before the next heavy rain.
What happens if the power goes out in a storm?
A standard sump pump stops. Storms and power cuts tend to arrive together, which is how a pump that works perfectly still ends in a flooded basement. A battery backup pump, or a generator you have actually tested, is the usual answer.
Why does my pump run when it has not rained?
Usually because the water table under the house is high enough to keep refilling the pit. That is groundwater rather than a fault, but it means the pump runs far more hours and wears out sooner. Your area's page gives its measured water table depth.
My sump pump is running but not pumping water. Why?
The common causes are a discharge pipe that is frozen or clogged, a check valve that is stuck or fitted backwards, a blocked intake screen, and a worn or jammed impeller. Unplug the pump before reaching into the pit. If it only hums, the motor has usually seized and the pump needs replacing.
The sump pump failed and the basement flooded. What do I do first?
Stay out of the water if it has reached outlets, appliances or the electrical panel. If it is safe, check the simple things: the plug, the breaker, and whether the float is stuck against the side of the pit. Then get the water out and the drying started. Replacing the pump is a plumber's job; the wet basement is a water damage job.
Local conditions change what causes this and how it behaves, so each area where the
drivers behind sump pump failure are actually present gets its own page with that
area's measured data. 125 of the 155 areas we cover
qualify; 43 of those pages are published so far and the rest are being added.