NYC DCA 2006980-DCA · Licensed & Insured
Exterior Waterproofing Installation & Repair in NYC
Waterproofing membranes, coatings, and sealants that protect foundations, brick walls, balconies, and windows across Manhattan, Brooklyn, Queens, the Bronx & Staten Island — keeping water out and properties dry for the long term.
— Brooklyn's Trusted Waterproofing Contractor
Exterior Waterproofing Built to Protect Your Property
Hi Tech Contracting & Restoration Corp is a team of experienced waterproofing professionals dedicated to keeping homes and buildings safe from water damage across New York City. Our focus on top-quality materials and detailed inspections helps prevent water intrusion, mold, mildew, and structural problems before they start.
Whether you need a foundation sealed, a brick facade coated, or a full exterior waterproofing system installed, we handle the job with reliable materials and proven techniques. We provide exterior waterproofing services in Brooklyn, Queens, Far Rockaway, Staten Island, Manhattan, Jackson Heights, Astoria, East New York, and surrounding areas.
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—Our Exterior Waterproofing Specialties
Exterior Waterproofing Services We Provide
Eight specialties covering every part of a property’s exterior envelope, from foundation walls to window lintels.
Home Waterproofing
Comprehensive waterproofing across a property’s exterior, using top-quality materials and detailed inspections to prevent damage.
Exterior Waterproofing Paint
A specialized coating that forms a waterproof barrier, stopping moisture from seeping into walls and foundations.
Foundation Waterproofing
Specialized materials applied to a foundation’s exterior surface to prevent water intrusion and structural damage.
Below Grade Waterproofing
Membranes applied to basement walls and floors below ground level to keep moisture and mold out for good.
Brick Walls Waterproofing
Coatings applied to exterior brick that prevent infiltration, mold, mildew, and long-term structural damage.
Balconies Waterproofing
High-quality barriers that stop water penetration and reduce the risk of leaks, mold, and structural issues.
Windows Waterproofing
Sealants applied around window frames that prevent infiltration, leaks, mold, and structural damage.
Windows Lintels Waterproofing
Protective materials applied to lintels around windows, reducing the risk of leaks and structural wear.
— A Closer Look
Coat It Right, Protect It Longer
Two of the most requested exterior waterproofing services, and how we approach each one.
— Coating
Exterior Waterproofing Paint
Exterior waterproofing paint is a specialized coating that forms a waterproof barrier on a building’s exterior surfaces, stopping moisture from seeping into walls, foundations, and other structures. It’s often paired with other waterproofing methods for stronger overall protection. We use high-quality waterproofing paint as part of a complete system, giving homes and buildings across NYC long-lasting protection against water, mold, and deterioration.
— Foundation Protection
Foundation Waterproofing
Foundation waterproofing applies specialized materials or coatings to the exterior surface of a building’s foundation to prevent water intrusion at the source. We inspect the foundation, prepare the surface, and apply a membrane or coating matched to the exposure the wall actually sees — protecting the property against water damage, mold, and structural issues for years to come.
— Related Waterproofing
Need Waterproofing Somewhere Else?
Exterior waterproofing covers the outside envelope — see our other waterproofing services.
Roof Waterproofing
Membranes and coatings that stop leaks at the roof deck before they reach the interior.
Basement Waterproofing
Interior and exterior systems that keep basements dry and free of mold and mildew.
Foundation Waterproofing
A focused look at protecting foundation walls above and below grade.
— Why Choose Us
Why Choose HTCR for Exterior Waterproofing
The right material for the right surface is what determines whether waterproofing lasts 10+ years or fails in one wet season.
Surface-Specific Materials
Coatings and membranes matched to brick, concrete, or stucco, not generic sealants that fail to bond.
Full Lifecycle Support
Inspection, installation, repair, and recoating handled by the same crew over the property’s life.
Licensed & Insured
NYC DCA licensed and EPA certified, protecting your property on every job.
24/7 Emergency Response
Active leaks and water intrusion handled on a priority basis to limit damage fast.
12+ Years Experience
A proven track record across Manhattan, Brooklyn, Queens, the Bronx & Staten Island.
Detailed Estimates
Free inspection with a written, itemized quote before any work begins.
— Our Process
From Inspection to Finished Seal
Five stages, always in this order — proper surface prep is what determines how long the waterproofing performs.
Free Inspection
We assess exposure and existing damage to scope the right system.
Written Estimate
An itemized, no-obligation quote — usually same week.
Surface Prep
Walls, foundations, and prepared for coating or membrane.
Waterproofing
Membrane, coating, or sealant applied for a watertight finish.
Walkthrough
We inspect the finished surface with you before calling the job done.
— Questions
FAQs — Exterior Waterproofing NYC
Exterior waterproofing is the process of sealing a building’s outside surfaces — foundation walls, brick, balconies, and windows — with membranes, coatings, or sealants that stop water from soaking in. It’s applied from the outside, so it blocks moisture before it ever reaches the interior.
A properly installed exterior waterproofing system typically lasts 10 to 15 years, with coatings and paints on the shorter end and membrane systems on the longer end. Regular inspection and prompt resealing of cracks are what get a system to the top of that range.
Common warning signs include damp or musty basements, visible white staining on brick or foundation walls, peeling exterior paint, water stains near windows, and cracks in the foundation or facade. Catching these early is far cheaper than repairing interior water damage later.
Waterproofing paint works well on above-grade walls and brick facades with light to moderate exposure, but below-grade areas like basement walls typically need a full waterproofing membrane. We inspect the property and recommend the system that matches the actual exposure the surface sees.
We recommend inspecting exterior waterproofing at least once a year, plus a check after any severe storm season. Catching hairline cracks, coating wear, or lifted flashing early prevents small issues from turning into basement or interior leaks.