
Waterproofing, Brooklyn, NY
Watertight barriers for basements, roofs, and walls that keep water out for good.

Foundation Waterproofing
When you live in Brooklyn, the weather doesn't take it easy on your property. Constant rain, winter snowmelt, high humidity, and old brownstone basements that never seem to stay dry: water finds its way in. Many homeowners struggle with damp walls, leaky roofs, and musty basements.
Roof On's waterproofing team creates watertight barriers using industry-leading products from GAF, Tremco, Sika, BASF MasterSeal, and Henry Company, protecting your home or business from leaks, humidity, and long-term water damage.
Schedule InspectionWhat We Handle
From basements to rooftops, we seal every spot that leaks, tailored to homes and commercial properties alike.
We seal cracks, install vapor barriers, and improve drainage systems to stop water at its source in older Brooklyn basements.
Durable, flexible coatings and membranes that expand and contract with the roof to prevent cracks and leaks before they start.
A protective barrier for brick, stucco, and concrete walls that still lets the structure breathe.
Flexible membranes and resilient coatings built to handle standing water and freeze-thaw cycles.
Our Work
Why Roof On
Modern waterproofing adapted for older homes without breaching structural integrity.
Henry GreenSeal, BASF MasterProtect, and GacoFlex: non-toxic, low-VOC systems.
Materials and labor backed by a warranty on every project.
Most areas ready for use within 24-48 hours of application.
Keeping moisture out improves indoor air quality throughout your home.
FAQ
Most waterproofing systems last anywhere from 7-10 years, though this varies with weather exposure, surface type, and material. Scheduled inspections catch minor issues early.
Yes, older homes and historic buildings require special care and methods. Our approach adapts waterproofing solutions without breaching the structure's integrity.
Yes, efficient waterproofing prevents moisture from entering wall, floor, and ceiling areas, the prime causes of mold and mildew, while improving indoor air quality.
Most areas are ready to use within 24-48 hours of application, depending on material and weather conditions. We confirm surfaces are fully cured before handing the space back.
Our residential and commercial waterproofing comes with a multiyear warranty for both materials and labor, so future issues are addressed promptly.
Get Started
Call now or schedule your free estimate to see how Brooklyn's most reliable waterproofing experts can keep your property protected year-round.
Free Inspection
Tell us about your roof, we'll get back to you fast with a free inspection and a clear, honest estimate.
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(929) 720-4223Explore More
Free Inspection · Free Estimate · 25+ Years Warranty
Licensed & Insured · Serving all of New York City