Sump Pump Repair and Replacement
A sump pump only matters on the day it is needed — and that is usually the day it fails. We test the float, the check valve and the discharge line before quoting anything, because the fault is frequently a part that costs a fraction of the pump.
✓ Float and switch tested first ✓ Open 7am–9pm, seven days ✓ No call-out fee with a repair
Get a Free Quote
Rather not call? Send this and we’ll get back to you fast.
Why it matters
Sump Pump Repair: It Is Usually the Float, Not the Pump
A sump pump has one moving part that fails more than all the others combined: the float. It is the switch that tells the pump when to start and when to stop, and it sits in a pit full of silt, iron and debris.
When the float jams, the pump either never runs while your basement fills, or never stops until the motor burns out. Both look like a dead pump from the top of the stairs. Neither one is.
- Never runs, even in heavy rain — float stuck down, a tripped breaker, or a failed switch.
- Runs constantly and will not stop — float stuck up, or a check valve letting water back into the pit.
- Hums but moves no water — the impeller is jammed or a capacitor has failed.
- Cycles on and off rapidly — float range set wrong, or a pit too small for the pump.
- Water backing up around the pit — a blocked or frozen discharge line rather than a pump fault.
We test the float, switch, check valve and discharge before anyone talks about a replacement. If your pump is running non-stop, the same principle applies to well systems — see why a pump keeps turning on and off.
What Our Sump Pump Service Covers
The same principle as everything else we do: test the whole system before anyone talks about replacing the pump. On a sump system that means four things, in this order.
Test the float and switch
The pit is filled and the pump watched through a full cycle. Most faults show themselves here, and most of them are a repair rather than a replacement.
Check the valve and discharge
A failed check valve sends discharged water straight back into the pit. We also trace the discharge line to where it actually ends, which is often further out than the owner expects.
Price it in writing
Float, valve, impeller or pump — you get the fault and the fixed price before any work starts. Most repairs finish on the same visit.
Why it matters here
Well Water, Basements and Why Sump Pumps Work Harder Here
A lot of the properties we work on have both a well and a sump pit, and the two are connected more closely than people realise. The same groundwater that feeds a shallow well is what fills the pit under the house.
- High water table, harder-working pump — on rural Upstate properties the sump runs far more than it would on a suburban lot, and wears out sooner.
- Iron and sediment jam impellers — Upstate groundwater carries both, and they build up on the float mechanism and inside the housing.
- Power cuts and storms arrive together — which is why a battery backup matters more here than in town.
- One visit, both systems — if we are already on site for the well pump, checking the sump takes minutes rather than a second callout.
Worth knowing: a sump pump is not part of your drinking water supply. If the water itself has gone sandy or is spitting air, that is a well fault — see well pump repair instead.
Signs Your Sump Pump Is Failing
A sump pump rarely dies without warning. It gives you months of small signals first, and almost nobody notices them — because the pump is in a pit in the corner of a basement and nothing appears to be wrong until water is on the floor.
These are the signs worth acting on before the next heavy rain:
Longer run times
The pump takes noticeably longer to clear the pit than it used to. Usually a worn impeller or a partially blocked discharge line reducing the flow rate.
Rattling, grinding or vibration
Worn bearings or an impeller out of balance. Not urgent on its own, but it is the sound a sump pump makes in the year before it stops.
Visible rust or scale
Iron in Upstate groundwater builds up on the housing and float arm. Once it reaches the float mechanism, jamming is only a matter of time.
Age matters too. If your sump pump is past seven years and you have never had it tested, that test is worth far more than the visit costs — particularly if the basement is finished.
Repair or replace
When Sump Pump Replacement Is the Right Call
Most of the time it is not. A float, a check valve or a jammed impeller are all repairs, and all of them produce symptoms that look exactly like a dead pump from the top of the basement stairs.
But there are situations where replacing the sump pump is genuinely the cheaper decision:
- The motor has seized or burned out — usually after months of running non-stop against a failed check valve.
- The pump is past ten years and something significant has failed. Repairing one part on a worn unit tends to be followed by another failure within the season.
- It was undersized from the start — a pump too small for the pit and the water volume never keeps up, and short cycles itself to death trying.
- The basement is finished — where a failure means real damage, replacing an ageing pump before it fails is worth the certainty.
Where a replacement genuinely is needed, we size it to the pit and the water volume rather than fitting whatever is on the shelf. Undersizing is the single most common reason a new sump pump fails early.
Sump Pump Repair and Replacement FAQs
How much does sump pump repair cost?
It depends on what actually failed. A float or check valve is a small job; a full pump replacement is not. We test first, then give you a fixed price in writing before any work starts.
How long should a sump pump last?
Seven to ten years is typical, but a pump running frequently because of a high water table will reach that sooner. On rural Upstate properties we regularly see pumps worn out in half that time.
My sump pump runs constantly. Is that normal?
Not unless it has genuinely been raining hard. Constant running usually means a float stuck up, or a failed check valve letting the same water back into the pit. Both are repairs, and both destroy the motor if left alone.
Do I need a battery backup?
If your basement floods when the pump stops, yes. Sump pumps are needed most during storms, which is precisely when the power tends to go out. It is the cheapest insurance on the system.
Is a sump pump the same as a well pump?
No. A well pump brings drinking water up from your well. A sump pump removes groundwater that collects under the house. Different jobs and different equipment, though on a lot of Upstate properties we service both.
Can you replace a sump pump the same day?
Usually yes, where the pit is a standard size and accessible. Most of our service area is within thirty minutes and we carry common sizes on the van.
Do you cover my area?
We work across Upstate South Carolina — see the areas we cover. If your town is not listed, call and ask rather than assuming.
Sump Pump Repair Across Upstate South Carolina
Basement taking water? Tell us what the pump is doing — running constantly, humming, or completely silent. That one detail usually tells us what we are dealing with before we arrive.