Basement Waterproofing · Cape May County, NJ
Basement Waterproofing in Cape May County, NJ
From the barrier-island beach towns of Ocean City, Wildwood, Stone Harbor, and Avalon to Middle Township, Lower Township, and Dennis on the peninsula, Cape May County has the highest water table in New Jersey — and that shapes every wet-home problem here. RDC Waterproofing finds the real cause and fixes it, with a lifetime transferable dry-basement warranty. We dispatch from our Piscataway hub and cover all of New Jersey.
- Local Cape May County crews
- Free 7-day inspections
- Lifetime transferable warranty
- We fix the source, not upsell
Cape May County wet basement?
A crawl space that floods on the tide, a sump that never stops, or water after every coastal storm — tell us what you’re seeing and we’ll diagnose it free.
Get My Free InspectionPiscataway hub · Serving all of Cape May County
Quick answer
RDC Waterproofing provides basement waterproofing, French drains, sump pumps, and foundation crack repair throughout Cape May County, New Jersey — including Middle Township, Lower Township, Ocean City, Wildwood, Cape May, Dennis, North Wildwood, Stone Harbor, and Avalon. 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 Cape May County basements get wet
Cape May County is a low, sandy peninsula surrounded by water, and its water table is the highest in the state — often just a foot or two below the surface near the shore. On the barrier islands — Ocean City, Wildwood, Stone Harbor, Avalon, and Cape May — full basements are almost unheard of; homes sit on pilings, slabs, or over crawl spaces, and coastal and tidal flooding push water up from below during storms and even high tides. The wet-home problem here isn’t a leaking basement wall; it’s groundwater and tide water rising into crawl spaces.
On the mainland — Middle Township, Lower Township, Dennis, and Upper Township — the sandy soil drains quickly but the water table stays high, so crawl spaces and any below-grade space stay wet. Across Cape May County, homes take on water mainly through hydrostatic pressure lifting groundwater up, seepage and tidal intrusion into crawl spaces, foundation cracks, and surface and tidal flooding. Because so much housing is crawl-space or slab and the tides and storms are relentless, crawl-space encapsulation paired with a battery-backup sump is the core of most Cape May County solutions.
What we install
The right waterproofing system for your Cape May County home
One accountable local team — with the backup sumps and crawl-space systems Cape May County homes really need.
Interior French drains
Perimeter drainage under the slab that collects water and routes it to a sump — the reliable, cost-effective fix for most Cape May County homes.
Sump pumps & battery backup
A dependable primary pump with a battery backup that keeps working when a coastal storm takes out the power — essential on Cape May County’s high water table.
Crawl space encapsulation
Sealed vapor barrier, drainage, and a dehumidifier for the crawl-space and slab homes common across Cape May County — dry ground, healthy air.
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.
Towns we serve
Basement waterproofing across Cape May County
Local crews dispatched from our Piscataway hub serve every Cape May County town, including:
Why Cape May County chooses RDC
Local, honest, and warrantied for life
- We’re close: dispatched from our Piscataway hub with local Cape May County crews — and full statewide coverage across New Jersey.
- 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 dry-basement warranty that stays with your home when you sell.
- Free inspections 7 days a week throughout Cape May County.
Cape May County waterproofing questions
Frequently asked questions
Do you provide free basement inspections in Cape May County?
Yes. RDC offers free, no-pressure inspections throughout Cape May 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 Cape May County?
It depends on the cause and the foundation type — most homes here are crawl-space or slab rather than full basement. A crawl-space encapsulation with drainage and a backup sump runs several thousand; smaller fixes cost less. You get a fixed, itemized quote after the free inspection — and we recommend only what you need.
Is crawl-space encapsulation the right fix for a Cape May County shore home?
Almost always, yes. With the highest water table in New Jersey and homes built over crawl spaces rather than basements, groundwater and tide water rise into the crawl space, breeding mold and rot. A sealed encapsulation with drainage, a dehumidifier, and a battery-backup sump keeps the space dry through storms and high tides — even when the power is out. We’ll confirm what your home needs on a free inspection.
Which Cape May County towns do you serve?
All of them — including Middle Township, Lower Township, Ocean City, Wildwood, Cape May, Dennis, North Wildwood, Stone Harbor, and Avalon, and more, dispatched from our Piscataway hub with statewide coverage across New Jersey.
Is the warranty transferable if I sell my Cape May 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 Cape May County basement inspected free
Honest diagnosis, a fixed-price quote, and a lifetime transferable warranty — from your local Cape May County team.