Sump Pump Installation & Battery Backup · New Jersey
Sump Pump Installation in New Jersey
A sump pump is the heart of a dry basement — and in New Jersey, a battery backup is what keeps it running when a nor’easter knocks the power out. For over 20 years, the RDC team has installed primary-plus-backup sump systems that keep pumping through the worst storms, backed by a lifetime transferable dry-basement warranty.
- Free 7-day inspections
- Lifetime transferable warranty
- We fix the source, not upsell
- All 21 NJ counties
Pump failing in storms?
A pump that runs constantly, cycles on and off, or dies when the power does is a basement flood waiting to happen. We’ll test it and diagnose it free.
Get My Free InspectionLifetime transferable dry-basement warranty · Licensed & insured NJ contractor
Quick answer
Sump pump installation in New Jersey means setting a pump in a sealed pit (basin) at the low point of the basement, connecting it to an interior French drain, and discharging collected groundwater outside and away from the foundation. Because NJ storms and nor’easters cut power exactly when the pump is needed most, RDC pairs every primary pump with a battery backup so it keeps pumping during outages. It’s the engine of any interior basement waterproofing system — free-inspected, fixed-priced, and warrantied for the life of the structure. Call (908) 569-1876.
Solutions
What a complete sump pump system includes
A sump pump does one job: it removes the water your interior French drain collects and lifts it out of the basement. But a pump alone isn’t a system. In New Jersey, where nor’easters routinely knock out power and dump inches of rain, a properly engineered sump setup has several parts working together:
- The pit and liner: a sealed basin set at the lowest point of the slab, sized to hold water and fitted with an airtight lid that controls humidity and keeps debris out.
- The primary pump: a cast-iron submersible pump with a reliable float switch, sized to your basement’s water volume so it isn’t short-cycling or running non-stop.
- The battery backup pump: a second pump on its own deep-cycle battery that takes over automatically the instant the power fails or the primary can’t keep up — the single most important upgrade for a NJ home.
- The discharge line: pipe with a check valve that carries water outside and far enough from the foundation that it doesn’t simply drain back in, positioned to comply with local discharge rules.
- An alarm & check valve: a high-water alarm warns you before trouble, and the check valve stops discharged water from flowing back into the pit.
Installed together, these parts keep the floor dry through the storms that flood unprotected basements — and RDC warranties the whole system for the life of the structure.
Warning signs
Signs your New Jersey sump pump needs attention
Sump pumps wear out on a schedule — usually 7 to 10 years. These are the signs yours is due.
No battery backup
If your pump has only wall power, the next nor’easter that cuts electricity leaves your basement completely unprotected — the most common cause of storm flooding.
Runs constantly or short-cycles
A pump that never rests, or clicks on and off rapidly, is undersized, has a bad float switch, or is nearing failure.
Strange noises or vibration
Grinding, rattling, or loud humming points to a worn impeller, jammed float, or failing motor.
Visible rust or age
Rust on the pump or a unit more than 7–10 years old should be replaced before it quits during a storm.
Water in the pit that won’t clear
Standing water the pump won’t evacuate means it’s clogged, the switch has failed, or the discharge line is blocked.
No pump at all
A wet basement with no sump means water has nowhere to go — pairing a pump with an interior drain is the fix.
Causes
Why a battery backup matters so much in New Jersey
Here’s the cruel irony of a wet basement: the storms that produce the most groundwater — nor’easters, tropical remnants, heavy spring thaw — are the same storms that knock out the power. A pump wired only to household electricity fails at the exact moment it’s needed most. That’s not a rare edge case in NJ; it’s the normal pattern.
A battery backup pump solves it. When the power drops, the backup switches on automatically off a deep-cycle battery and keeps evacuating water for hours — long enough to ride out most outages. It also covers a second failure mode: if the primary pump is overwhelmed by an extreme volume, the backup adds capacity rather than letting the pit overflow.
A few realities we’re straight with homeowners about:
- Pumps have a lifespan. Even a good pump lasts roughly 7–10 years. Replacing a tired pump on your schedule is far cheaper than replacing it after a flood.
- Discharge placement is regulated. Many NJ townships restrict where sump water can go — not to the sanitary sewer, and far enough from the foundation and your neighbor’s lot. We install to code.
- A pump is only as good as its drain. The pump removes what the perimeter drain delivers, so the two are designed as one system.
How it works
From free inspection to a storm-ready pump
Free inspection
We test your existing pump, check the pit, discharge, and backup, and confirm what your basement needs — no pressure.
Fixed-price plan
You get an itemized, fixed-price quote for the pump, battery backup, and discharge work — nothing you don’t need.
Clean installation
Our crews set the pit and liner, install the primary and backup pumps, run a code-compliant discharge, and test everything.
Lifetime warranty
You receive a written, lifetime transferable dry-basement warranty — and a pump ready for the next storm.
Why RDC Waterproofing
The team New Jersey trusts to keep the pump running
- 20+ years, 1,000+ 5-star reviews as the RDC brand New Jersey already knows.
- Backup on every system: we don’t sell a primary pump without a plan for the power going out.
- Lifetime transferable warranty that stays with the home when you sell.
- Our own crews — trained RDC technicians, not rotating subcontractors.
- Licensed, bonded & insured New Jersey contractor, BBB A-rated.

Where we work
Sump pump installation across all 21 NJ counties
We install and replace sump systems statewide from our Berkeley Heights and Piscataway hubs. See all service areas →
Sump pump questions
Frequently asked questions
How much does sump pump installation cost in New Jersey?
A straightforward pump replacement is a few hundred dollars; a complete system with a new pit, primary pump, battery backup, and code-compliant discharge runs more. RDC gives a fixed, itemized quote after a free inspection — and recommends only what your basement needs.
Do I really need a battery backup sump pump?
In New Jersey, yes. The nor’easters and heavy storms that produce the most groundwater are the same ones that cut power — the exact moment your pump is needed most. A battery backup keeps pumping through the outage and is the single most important upgrade for storm protection.
How long does a sump pump last?
A quality pump generally lasts 7 to 10 years. Replacing an aging pump on your own schedule is far cheaper than replacing it after it fails during a storm and floods the basement.
Where does the sump pump discharge the water?
Outside, far enough from the foundation that it can’t drain back in, and in compliance with your township’s rules — NJ towns generally prohibit discharging into the sanitary sewer. RDC installs the discharge line to code.
Can you replace just the pump, or do I need the whole system?
Often we can swap the pump alone. But if the pit is undersized, there’s no backup, or the discharge is poor, we’ll show you what’s worth upgrading and what isn’t — we fix the source, not upsell.
Which parts of New Jersey do you serve?
All 21 NJ counties, from hubs in Berkeley Heights and Piscataway. Find your county on our service areas page.
Get your sump system inspected free
Honest diagnosis, a fixed-price quote, and a lifetime transferable warranty — anywhere in New Jersey.