Basement Waterproofing · Union County, NJ
Basement Waterproofing in Union County, NJ
From the older homes of Westfield and Cranford to the tight lots of Elizabeth and Linden, Union County basements take on water for a handful of predictable reasons. RDC Waterproofing finds the real one and fixes it — with a lifetime transferable warranty. We’re headquartered right here, with a hub in Berkeley Heights.
- Local Union County crews
- Free 7-day inspections
- Lifetime transferable warranty
- We fix the source, not upsell
Union County wet basement?
Water after rain, a musty smell, or a crack that weeps — tell us what you’re seeing and we’ll diagnose it free.
Get My Free InspectionBerkeley Heights hub · Serving all of Union County
Quick answer
RDC Waterproofing provides basement waterproofing, French drains, sump pumps, and foundation crack repair throughout Union County, New Jersey — including Elizabeth, Union, Plainfield, Westfield, Linden, Rahway, Cranford, Summit, Berkeley Heights, and Scotch Plains. We diagnose the true source of the water for free and back the fix with a lifetime transferable warranty. Call (908) 569-1876.
Local conditions
Why Union County basements get wet
Union County is a mix of dense, older housing and low-lying ground, and both work against a dry basement. Much of the county sits on heavy clay soil that holds water against foundation walls after a storm, and neighborhoods along the Rahway River, the Elizabeth River, and the lowlands toward Newark Bay contend with a high water table and poor surface drainage. The county’s many pre-war homes — common in Westfield, Cranford, Summit, and Roselle — often have block or stone foundations that wick water through the wall and cove joint.
Put those together and Union County basements take on water four main ways: hydrostatic pressure pushing groundwater up through the floor, foundation cracks in poured walls, seepage through porous block, and surface water from downspouts and grading that slope toward the house. The fix has to match the cause — which is exactly what RDC’s free inspection is for.
What we install
The right waterproofing system for your Union County home
One accountable local team, matched to your foundation and your water problem.
Interior French drains
Perimeter drainage under the slab that collects water and routes it to a sump — the reliable, cost-effective fix for most Union County homes.
Sump pumps & battery backup
A dependable pump with a battery backup that keeps working when a nor’easter takes out the power.
Foundation crack repair
Polyurethane and epoxy injection that seals leaking poured-concrete cracks permanently.
Exterior waterproofing
Excavation, membrane, and footing drains for failing walls or where water must be stopped outside.
Yard & exterior drainage
Grading, downspout extensions, and catch basins that move roof and surface water away from the foundation.
Humidity & mold control
Dehumidification and vapor barriers to finish the job and keep Union County basement air healthy.
Towns we serve
Basement waterproofing across Union County
Local crews from our Berkeley Heights hub serve every Union County town, including:
Why Union County chooses RDC
Local, honest, and warrantied for life
- We’re local: headquartered in Union County with a Berkeley Heights hub — minutes away, not hours.
- 20+ years, 1,000+ 5-star reviews as the RDC brand New Jersey already trusts.
- Honest diagnosis: we find the real cause and tell you if you need less than you feared.
- Lifetime transferable warranty that stays with your home when you sell.
- Free inspections 7 days a week throughout Union County.
Union County waterproofing questions
Frequently asked questions
Do you provide free basement inspections in Union County?
Yes. RDC offers free, no-pressure inspections throughout Union County, 7 days a week. We inspect inside and out, diagnose where the water is coming from, and give you a written, fixed-price quote at no cost. Call (908) 569-1876.
How much does basement waterproofing cost in Union County?
It depends on the cause. A leaking crack sealed by injection is a few hundred dollars; a full interior French drain with a sump and battery backup for a typical Union County home runs several thousand. You get a fixed, itemized quote after the free inspection — and we recommend only what you need.
Which Union County towns do you serve?
All of them — including Elizabeth, Union, Plainfield, Westfield, Linden, Rahway, Cranford, Summit, Berkeley Heights, Scotch Plains, Roselle, Clark, Springfield, and more, dispatched from our Berkeley Heights hub.
Is the warranty transferable if I sell my Union County home?
Yes. Our interior waterproofing systems carry a lifetime transferable dry-basement warranty that stays with the home — a real selling point at closing. See our guarantees.
Get your Union County basement inspected free
Honest diagnosis, a fixed-price quote, and a lifetime transferable warranty — from your local Union County team.