Waterproofing Contractor in New Jersey
Complete building waterproofing — from foundations to facades to balconies — for commercial, residential and historic properties across NJ.
Water Always Finds the Weak Point — We Find It First
Every building in New Jersey is in a constant fight with water. Rain drives sideways into facades, snowmelt sits on flat surfaces, and groundwater pushes against foundations all year. Each freeze-thaw cycle turns a small entry point into a bigger one. Adriatic Restoration has been waterproofing buildings across NJ since 1982 — sealing structures properly, not just covering up symptoms.
Our Waterproofing Services
One crew, the full building envelope — top to bottom:
- Balcony waterproofing and deck coating systems
- Foundation waterproofing and below-grade membranes
- Basement waterproofing and water intrusion repair
- Facade waterproofing and breathable masonry sealers
- Brick and masonry water repellent application
- Caulking and sealant replacement (windows, joints, penetrations)
- Expansion and control joint waterproofing
- Plaza deck and terrace waterproofing
- Parking garage deck coatings
- Parapet wall and coping waterproofing
- Through-wall flashing repair and installation
- Elevator pit and below-grade interior sealing
- Concrete crack injection (epoxy and polyurethane)
- Water testing and leak source investigation
How We Approach Waterproofing in New Jersey
Step 1: Diagnose the Real Problem
Where water shows up is rarely where it actually gets in. We trace every leak back to its true source using close inspections, controlled water testing, and four decades of NJ experience. Then you get an honest written scope with exact pricing — if a small sealant repair solves the issue, we won't sell you a full membrane system.
Step 2: Repair First, Waterproof Second
Waterproofing applied over deteriorated concrete or masonry fails early. Our crews fix the substrate first — cracks, spalls, and failed joints — then install the system matched to your building: sealer, liquid membrane, or sheet membrane. For deeper structural work, our Masonry Repair team handles it in the same project.
Step 3: Detail, Verify, and Stand Behind It
Most premature failures start at terminations, joints, and penetrations — so that's where our detailing gets the most attention. The system goes on at correct thickness and proper cure conditions from edge to edge. We verify the result, walk the finished work with you, and stand behind it long after the crew leaves.
Properties We Keep Dry
Multi-Family and Condominium Buildings: From garden apartments to condo towers, we work with boards and property managers on building-wide waterproofing programs — phased, budgeted, and scheduled around residents.
Commercial and Office Properties: Leaks cost tenants and revenue. We handle facade sealing, plaza decks, and garage coatings with scheduling built around business operations.
High-Rise Residential Towers: Rigging, swing-stage access, and crews experienced at height — full-envelope waterproofing for towers in Hudson and Bergen County’s skyline communities.
Single-Family Homes and Townhouses: Wet basements, leaking foundations, and water-stained walls. Homeowners get the same diagnostic-first approach as our largest commercial clients.
Historic and Landmark Buildings: Pre-war masonry needs breathable, period-appropriate systems — the wrong sealer traps moisture and accelerates damage. We pair waterproofing with our Facade Restoration work to protect both structure and appearance.
Choosing the Right Waterproofing System (Not Just Any System)
There’s no single “waterproofing” product — there are families of systems, and the wrong choice fails fast. Here’s how we match system to situation:
Penetrating sealers soak into brick and concrete and repel water while letting the wall breathe. Right for sound masonry facades; wrong for surfaces with active cracks.
Liquid-applied membranes cure into a seamless rubber-like layer. Ideal for balconies, terraces, and complex shapes with lots of penetrations and corners.
Sheet membranes offer consistent factory thickness. The workhorse for foundations, plaza decks, and large flat areas where reliability matters more than speed.
Traffic-bearing coatings are built to be walked and driven on. The right answer for parking decks and high-use balconies — and a wear item that needs periodic recoating.
Sealants and flashing handle the joints and transitions where most leaks actually start. Sometimes a building doesn’t need a system at all — it needs its details rebuilt correctly.
The skill isn’t applying the product. It’s knowing which one your building needs — and which ones it doesn’t.
Explore Our Waterproofing Services
Our Waterproofing Coverage Across the State
Waterproofing is one of the most common services we handle across northern and central NJ. We serve Bergen County, Hudson County, Essex County, Passaic County, Union County, Middlesex County, Morris County, and Monmouth County.
Towns we frequently work in: Paramus, Hackensack, Fort Lee, Englewood, Ridgewood, North Bergen, Jersey City, Hoboken, Newark, Montclair, Clifton, Paterson, Morristown, Edison, East Rutherford, and surrounding communities.
Not sure if we cover your area? Call (201) 338-4642 and we’ll let you know straight away.
40+ Years of Waterproofing New Jersey Buildings
Most waterproofing failures aren’t product failures — they’re diagnosis failures. Adriatic Restoration has been finding and fixing water intrusion in New Jersey buildings since 1982, which means we’ve seen how every system performs over decades, not just on the spec sheet. We’re licensed, insured, and we fix the structure before we seal it.
Because we’re also a full masonry and restoration contractor, you don’t need to coordinate two companies when waterproofing reveals damaged brick, failed stucco, or deteriorated concrete. One crew, one schedule, one point of responsibility — and a result built to outlast NJ winters.
Recent Works
Frequently Asked Questions - FAQs
How do I find where my building is leaking from?
Water travels — stains rarely sit below the entry point. We trace leaks with inspection and water testing to find the true source before repairing.
What does waterproofing cost in NJ?
It ranges widely — a sealant repair may be a few hundred dollars, while full-building membrane systems run much higher. Every quote is written and itemized.
Is exterior or interior waterproofing better for basements?
Exterior stops water before it reaches the wall and is the more permanent fix. Interior systems manage water that gets in — sometimes that’s the practical choice.
How long does waterproofing last?
Penetrating sealers typically last 7–10 years, membranes 10–20+, and sealant joints 10–15. Lifespan depends heavily on installation quality and detailing.
Can you waterproof in cold weather?
Many systems have minimum temperature requirements, but cold-weather formulations exist. We schedule and select products around NJ’s seasons.
Every Storm Is a Test Your Building Shouldn't Fail
Get a free waterproofing assessment from the team that’s been keeping New Jersey buildings dry since 1982.