Statewide · From the Highlands to the Coastal Plain
Basement Waterproofing Contractors Across New Jersey
Seepage on Hunterdon's Piedmont slopes, a high water table in Burlington's sandy soils, sewer backups after a South Jersey cloudburst: describe your basement once. Your request goes to one local contractor, not a list of companies calling you.
- One participating contractor for each New Jersey ZIP code
- Interior drains and sumps, membranes, cracks, crawl spaces
- Free to send and no obligation to go ahead
Waterproofing services
Basement problems New Jersey homeowners send us
Interior Drainage and Sump Pumps
A perimeter drain under the floor edge feeding a sealed sump, the most common basement fix in New Jersey.
Exterior Foundation Waterproofing
Excavating outside, applying a membrane and drainage board, and laying a new footing drain.
Foundation Crack Repair
Sealing leaking cracks in poured walls, assessing structural cracks and closing radon paths.
Crawl Space Encapsulation
A sealed liner, closed vents and a dehumidifier for damp crawl spaces under New Jersey homes.
Not sure which fix
Describe the water and where it shows up. The contractor diagnoses it on site.
Flood disclosure and radon guide
What New Jersey's 2024 flood disclosure rules and its radon certification law mean for basement work.
How it works
Three steps, one contractor
Anywhere in New Jersey, one contractor gets your request, at no cost to you and with no duty to hire.
Start with your ZIP code
Enter the ZIP code first, then the kind of work and a rough size of the space.
We route it to one contractor
Each New Jersey ZIP code has a single participating contractor. Only they see it.
Inspection, estimate, decision
The contractor contacts you, inspects if needed and prices the work. You choose.
Before you build
New Jersey basements, north to south
New Jersey's geological survey divides the state into four provinces. The Coastal Plain, about three-fifths of the state, is unconsolidated sand, silt and clay south of a Fall Line that runs from Carteret through Princeton Junction to Trenton. North of it, the Piedmont, Highlands and Valley and Ridge sit on rock rather than loose sediment, which changes how water reaches a basement and how a contractor digs around one.
Radon follows the same divide only loosely. NJDEP's 2015 report puts nearly every Hunterdon County municipality in Tier 1, but Tier 1 towns also turn up on the Coastal Plain, in Gloucester and Camden counties. And since March 20, 2024, sellers must tell buyers whether a home has had flood damage or pooled water from heavy rain, which makes the waterproofing paperwork worth keeping.
Before you sign anything
- A New Jersey home improvement contractor registration number on the contract
- A written contract for any job of $500 or more
- Notice of your right to cancel within three business days
- Where the sump will discharge, never to the sanitary sewer
- Who applies for municipal permits
- NJDEP radon certification, if radon work is offered
How we choose contractors
Why one contractor instead of five
NJ Waterproofing Pros is an estimate-request service. It doesn't do any waterproofing. Your request goes to the participating contractor for your ZIP code and nowhere else, so your phone doesn't ring all week. Contractors pay us a fee per request; you pay nothing.
- LocalWorks in the New Jersey ZIP codes it receives requests for.
- RegisteredRegistered under New Jersey's Contractors' Registration Act.
- InsuredHolds liability insurance, certificate on request.
Service areas
Waterproofing guides by county
County pages so far cover Camden, Gloucester, Burlington, Mercer and Hunterdon. Each gives the county's radon picture, ground and flood history, and what that means for a basement there.
South Jersey
Central Jersey
FAQ
Questions homeowners ask
Is my request sent to a list of waterproofing companies?
No. Each New Jersey ZIP code has one participating contractor, and only that contractor receives your request.
How long until I hear from someone?
Typically within one business day. If you send it on a weekend or a holiday, expect contact the next working day.
Do waterproofing contractors charge for estimates?
NJ Waterproofing Pros costs nothing to use and you aren't committed to anything. Most contractors inspect and price a basement for free; a fee, such as for an engineer's report, should be disclosed up front.
What if no contractor covers my ZIP code?
We let you know by email, keep the request without sending it to anyone, and contact you again if a participating contractor begins covering your area.
Can any contractor install a radon system in New Jersey?
No. Since May 13, 1991, radon testing and mitigation in New Jersey have been limited to NJDEP-certified businesses, though homeowners may work on their own homes.
Does a New Jersey contractor need to be registered?
Yes. The Contractors' Registration Act requires home improvement contractors to register with the state, and unregistered contractors can't be issued municipal construction permits.
How does NJ Waterproofing Pros earn money?
Participating New Jersey contractors are billed per request. Homeowners are never charged.
Water in your New Jersey basement?
Start with your ZIP code. The one participating contractor for it will be in touch about an inspection and estimate.
Request My Estimate