Mechanical failure
The motor burned out, the float jammed or the check valve failed. These tend to happen during long, heavy rain because the pump runs hardest then. The fix is a pump contractor's, and the cleanup follows.
Cleanup and drying after a sump pump fails, with the pump itself repaired or replaced by a plumber or pump contractor.
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When a sump pump fails, the pit overflows and water can cross the basement floor within hours of heavy rain. Jenkintown Water Damage Restoration extracts the water, removes materials that cannot dry and dries the cellar. A plumber or pump contractor repairs or replaces the pump. Phones never go unanswered overnight, and a crew heads out the moment one is free.
A sump pump does one job: it takes water that collects in a pit in the cellar floor and sends it out of the house. It does that job most visibly in the worst weather. Long rain raises the water table, the pit fills faster, the pump runs harder, and a pump that is worn, stuck or unplugged has the least margin when it matters most.
Pumps fail in a handful of ways. The float that switches the motor on can jam against the pit wall or wedge under debris. The motor can burn out after running hard through days of rain. The check valve can fail, so water that was pumped up the discharge line runs back into the pit. The discharge line can freeze or clog outside. And in a storm, the power can go out just when the pump is needed.
This page covers what to do when a pump has failed and water is on the floor. The cause of the failure is a plumber's or pump contractor's job, and the cleanup and drying are the crew's. If the water has come in from outside rather than from the pit, the basement flooding cleanup page is the better match.
An electric sump pump stops, the pit fills, and water rises onto the floor, often during the very storm that raised the water table. The usual protections are a battery backup pump, a water-powered backup or a generator. Without one, the cellar fills until the power returns or the rain stops.
This is the case people remember. The storm is the reason the pump is needed and also the reason it has no power. A cellar can go from dry to a few inches deep in a couple of hours of heavy rain.
If the power is out and water is rising, stay out of the cellar if it is near the panel, move valuables upstairs and call. Never run a generator in a garage, a cellar or near a window.
The float switch can jam or stick, the motor can wear out after long runs, the check valve can fail and let water fall back into the pit, and the discharge line can clog, freeze or kink. A power loss is a separate cause. A pump contractor can tell which it was.
The float rises with the water and switches the motor on. If it catches against the pit wall or a pipe, the motor never starts. A check valve sits on the discharge line, and when it fails the pump runs again and again because the water it moved comes right back.
The discharge line carries water out of the house, and if it freezes in winter or is blocked by leaves in autumn, the pump has nowhere to send the water. Water that is dumped next to the foundation can also return to the pit.
Only if your policy includes a water backup and sump discharge endorsement, which covers backup through a drain or overflow from a sump, even when a pump mechanical failure caused it. It usually excludes the pump itself. Standard policies typically exclude it. Your insurer decides, so check your policy.
Ask your agent exactly what the endorsement covers, and what its limit is, before the next storm. Many people find out they lack it only after a loss.
The state Insurance Department answers consumer claim questions. The crew's photos, moisture readings and removed-materials list go with your claim, but whether it pays is the insurer's decision.
Test the pump by pouring water into the pit until the float lifts and the pump runs, check that the discharge line is clear and runs away from the house, plug the pump into a working GFCI outlet and ask a pump contractor about a battery backup. Keep the pit clear of debris.
Do this in dry weather, not in the storm. Lift the pit cover, add a bucket or two of water and watch the pump cycle and the water leave. Listen for grinding.
Move stored items off the floor and onto shelves in a cellar that has ever taken water, and keep the main valve and electrical panel clear and reachable.
Do not reach into a pit with a pump that is plugged in, and do not stand in water to reset a breaker. A generator belongs outdoors, never in a garage.
If the cellar floor is wet near outlets or the panel, nobody goes in until the power risk is dealt with. A tripped outlet or a dead circuit is the simplest cause, and the crew notes what it finds for the pump contractor.
A portable submersible pump lowers the level, and an extractor takes the film from the slab and carpet. In a long rain the water may keep coming in, so the crew explains how pumping will be staged.
Wet pad, stored cardboard and the lower part of finished drywall come out if they cannot dry. Because pit water is groundwater, much of the structure can often be dried in place when the cleanup is quick.
Air movers and dehumidifiers run with daily readings, as on the structural drying page. Moisture readings, photos and a list of removed materials are handed to you, which can be useful where an endorsement applies.
A plumber or pump contractor repairs or replaces the pump, float, check valve or discharge line, and may suggest a battery backup. Doing that before the next storm is the real prevention.
The motor burned out, the float jammed or the check valve failed. These tend to happen during long, heavy rain because the pump runs hardest then. The fix is a pump contractor's, and the cleanup follows.
The same storm that raises the water table can knock out power. An electric pump with no backup cannot run, and the pit fills until water spills. A battery or water-powered backup is the usual answer, and the pump contractor sets it up.
A pump can run and still lose if the discharge line is frozen, clogged or dumping water next to the house that runs back in. The pit keeps cycling, and the cellar still takes water.
A pump failure that is caught within an hour or two can be a small job, and one that runs all night in a storm is a larger one. What the water reached is what sets the price.
| Job | Typical range | What it includes |
|---|---|---|
| Emergency inspection and moisture assessment | Free–$200 | Often credited if work goes ahead |
| Standing water extraction, per sq ft | $1.00–$3.50 | A working estimate |
| Category 1 mitigation, one room or small area | $1,200–$4,000 | Groundwater caught quickly |
| Flooded basement cleanup, typical total per cost guides | $2,000–$7,000 | Larger, finished cellars cost more |
| After-hours emergency fee | $100–$300 | Night, weekend and holiday dispatch |
Only the fourth row comes from published cost guides; the rest are the business's working estimates for Montgomery County in 2026. The price is confirmed on site and approved before the emergency stage starts. A pump or battery backup is bought separately from a plumber or pump contractor.
Tell us what's happening and we'll tell you honestly whether it's a quick fix, and what sump pump failure water damage should cost.
Sump pumps are a regular fixture in basements across Montgomery County, especially in houses near creeks and low ground. Around Jenkintown the pit is often fed by drain tile or by the weeping of the foundation itself, and it works hardest in March snowmelt, wet May weather and summer storms.
The Tookany system and Jenkintown Creek rise fast because the watershed is so heavily developed, and the groundwater around nearby cellars rises with them. When the creek is high, so is the pit.
Pump replacement, battery backups and discharge-line work are done by plumbers and pump contractors. Ask them about their Pennsylvania registration and for a written contract if the job is over $500.
Pumping, cleanup and drying when water arrives in a basement from the surface, a failed pump or a backed-up drain.
Cleanup and drying for older cellars where water weeps through the face of rubble stone walls rather than through a crack.
Pumping and extracting standing water from cellars, floors and carpet so drying can start before mold does.
Interior water cleanup and drying after storms, plus emergency tarping or board-up, not roof replacement.
Not sure if you're covered? Check your ZIP code.
It depends on the cause and on your own policy, and only your insurer can say.
Old rubble-stone and brick cellar walls seep because they are porous masonry in soft mortar, set in ground that fills with water after long rain.
On September 1, 2021, the remnants of Hurricane Ida dropped roughly 5 to 10 inches of rain on eastern Pennsylvania, most of it in a little over six hours.
Pumps work hardest in long rain, so a worn motor, a stuck float or a failed check valve tends to show up then. The power can also go out. A pump contractor can inspect it and tell you the cause.
No. A plumber or pump contractor repairs or replaces pumps, check valves and discharge lines, and installs backups. The crew cleans and dries what the water reached.
It keeps a pump running when the power goes out, for a limited time depending on the battery and how hard the pump works. It is a common precaution, not a guarantee, and it needs testing and eventual replacement.
It is groundwater, so it is cleaner than sewage, but it carries soil and can turn gray as it sits. The crew treats it as at least Category 1 and checks the category on site.
It covers water that backs up through a drain or overflows from a sump, even when a mechanical pump failure caused it, and usually not the pump itself. Whether you have it and its limit are in your policy.
Mold can begin on wet materials within a day or two. The EPA advises drying water-damaged areas and items within 24 to 48 hours, which is why the crew runs drying equipment right after extraction.