Plumbing
Sump Pump Installation & Repair in Union County & Central NJ
Sump pump installation, repair, and battery backup systems to protect your basement from flooding.
A sump pump keeps the groundwater that collects under a basement floor from rising into the room, and it tends to fail at the worst possible time: in the middle of a long, heavy rain or a power outage. Vanguard handles repair and replacement of the pump itself, installs battery backup systems, and corrects the parts around it, such as a check valve that lets water fall back into the pit or a discharge line that empties against the foundation. Our licensed technicians size each replacement pump to your pit and to how far the pump must lift and carry the water.
Common problems and how we handle them
My sump pump clicks on and off every few seconds. What is wrong?
That pattern, called short cycling, wears out the motor and switch quickly. Common causes are a float switch set with too little travel between its on and off points, a pit too small for the pump's output, or a missing or failed check valve that lets the water in the discharge pipe drain back into the pit after each cycle. Watching one full cycle usually shows which it is. Each cause has its own fix, and if the motor is still healthy, none of them necessarily means a new pump.
What keeps the basement dry when the power goes out?
A standard sump pump runs on household current, so it stops when a storm cuts the electricity, often just as groundwater is rising. A battery backup system adds a second pump in the same pit with its own float switch, powered by a deep-cycle battery and a charger that keeps it ready. It takes over when the main pump stops or falls behind. Backup batteries lose capacity with age and need periodic checks and eventual replacement. Many systems include an alarm that sounds when the backup is running.
Where should the sump pump water go?
Far enough from the house that it does not soak back down along the foundation and into the pit again. A discharge that ends at the base of the wall keeps the pump cycling on the same water. Outdoor lines also need protection from freezing, because an ice plug blocks discharge completely; a freeze-resistant fitting near the house lets water escape when the line beyond it is frozen. Local rules can limit where discharge may go, including connections to the sanitary sewer, so those are confirmed before a new line is routed.
Is a pump that still runs worth replacing?
Sometimes. A running pump can still be on its way out: a motor that hums before starting, a housing covered in rust, a switch that sticks, or a pump that needs longer each season to empty the pit. The switch alone can sometimes be replaced. If the pump is old or too small for the water that arrives during storms, replacing it on a dry day is far easier than replacing it with water on the floor.
How the job works
- Inspect the pit and liner, clear out debris, and ask how fast water comes in during wet weather and whether the pit has ever overflowed.
- Measure the vertical lift from the pit to the discharge point and the length of the discharge run, so the pump is sized for the work it actually has to do.
- Set the pump on a firm, level base above the silt at the bottom of the pit, with a check valve and a union in the discharge line, plus a small air-relief hole where the pump maker calls for one.
- Add a battery backup pump or high-water alarm in the same pit if you choose one, placing the battery where it is easy to check.
- Fill the pit with water and watch several full cycles to confirm the float moves freely, the pump empties the pit, and the check valve holds the water in the discharge line.
Cost of sump pump installation & repair
Reusing a sound pit, discharge line and check valve keeps sump pump work simpler than starting over. The type and capacity of pump your water conditions call for, a battery backup or alarm, and any rerouting or extension of the outdoor discharge line all add to the scope. The pump, parts and labor are listed on a written price that you see and approve before the old pump comes out.
Why homeowners call Vanguard for sump pump installation & repair
- Licensed and insured. We work under NJ Master Plumber license NJMPL 13344 and HVACR license 19HC00609600, and every job is done by our own technicians, never a subcontractor.
- Upfront pricing, free estimates on most jobs. You approve a written price before work begins. No surprise line items when the job is finished.
- 4.9 stars across 556+ Google reviews. Read what customers say.
- Answered 24/7. Our phone is answered around the clock, including holidays.
Related plumbing services
Areas we serve
We provide sump pump installation & repair throughout Union, Middlesex, Somerset, and Essex counties, including:
Sump Pump Installation & Repair questions
How do pedestal and submersible sump pumps differ?
A pedestal pump keeps its motor on a column above the pit, with only the intake in the water. It is easy to reach and fits narrow pits, but it is louder and the exposed motor sits in the room. A submersible pump sits entirely underwater, which cools the motor and quiets it, and it works well under a sealed lid. The right choice depends mostly on pit size and how much water comes in.
Should my sump pit have a lid?
A fitted cover is worth having. It keeps debris, toys and pets out of the pit, cuts down on moisture and musty odors in the basement, and reduces noise. If the house has a radon mitigation system, the pit is usually sealed as part of it, and that seal should stay airtight after any pump service. Covers come with openings for the discharge pipe and power cord to suit standard pit sizes.
What does a high-water alarm do?
It sounds when water in the pit rises above the level where the pump should have switched on, which means the pump has failed, the switch is stuck, or more water is coming in than the pump can handle. Because it only has to sense rising water, it gives you warning before the floor gets wet, even if you cannot hear the pump itself. Some models can also send an alert to a phone.
Is a sump pump the same as a sewage ejector pump?
No. A sump pump moves groundwater that collects under the floor and sends it outdoors. A sewage ejector handles waste from a basement bathroom or other fixtures below the level of the sewer line, lifting it up into the house drain. Ejector pits are sealed and vented because of odors and gases, and the pump is built to pass solids. The two jobs call for different equipment and should never be combined.
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