Water is the single greatest threat to the structural integrity of a New York building. From rising water tables in Lower Manhattan to heavy coastal rains in Queens, moisture finds every crack.
At A1 NexGen Contracting, we are a specialized waterproofing company with years of experience identifying and stopping leaks before they cause thousands of dollars in damage. We utilize cutting-edge sealants and time-tested masonry techniques to keep your interior dry and your foundation solid.
Our Waterproofing Services
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Facade & Exterior Sealing
Porous bricks and stones act like sponges. We apply high-grade, breathable waterproof sealants to your building’s exterior. These coatings repel liquid water while allowing vapor to escape, preventing the "trapped moisture" that leads to mold and masonry rot.
Foundation & Basement Waterproofing
A damp basement is a liability. We offer both interior and exterior foundation sealing services. By addressing cracks in the foundation and applying industrial-grade waterproof membranes, we ensure your basement remains a usable, dry space.
Roof & Terrace Waterproofing
In NYC, outdoor spaces like terraces and flat roofs are prime targets for leaks. We provide seamless waterproofing layers that withstand foot traffic and standing water, protecting the units below.
Critical Joint & Window Sealing
Often, leaks occur where different materials meet. We specialize in high-performance caulking and flashing for windows, doors, and expansion joints, ensuring these "weak points" are the strongest parts of your defense.
[The Cost of Waiting]
Prevention is Cheaper than Repair
Small damp spots quickly evolve into:
1
Structural Weakening
Rusted rebar and crumbling mortar.
2
Health Risks
Toxic mold growth behind drywall.
3
Electrical Hazards
Water reaching outlets or fuse boxes.
4
Property Violations
DOB fines for unsafe structural conditions.
[Why Hire A1 NexGen?]
A Reliable Waterproofing Company
We don’t believe in "quick fixes." We find the source of the water infiltration—whether it’s hydrostatic pressure, poor drainage, or porous masonry—and fix it the right way. Our use of premium materials and rigorous testing ensures that once we seal a leak, it stays sealed.
Is Your Property Protected?
One heavy storm is all it takes to cause a disaster. Contact NYC’s waterproofing experts today for a free, no-obligation estimate.
NYC’s trusted experts in Brownstone renovation, waterproofing, and masonry. Serving Manhattan, Brooklyn, and Queens with premium craftsmanship. Get a free estimate!
