SLG Waterproofing

Dry, protected spaces-waterproofing you can trust.

About SLG Waterproofing
SLG Waterproofing helps homeowners and property managers stop water intrusion and protect their buildings from costly structural damage. We specialize in diagnosing leaks, managing moisture, and installing long-lasting waterproofing systems for basements, foundations, crawl spaces, and exterior walls. Our team focuses on clear communication, clean workmanship, and solutions tailored to your property-whether you need crack repair, drainage improvements, or full waterproofing protection. From the first inspection to final testing, we work to keep your space dry, healthy, and ready for everyday use-rain or shine.
Keep Water Out for Good
Target the source. Seal the structure. Stay dry.

Basement Waterproofing

Prevent seepage and flooding with interior sealing, drainage solutions, and sump pump support designed for your basement.

Foundation Crack Repair

Seal cracks to stop leaks and reduce future damage using professional injection and reinforcement methods.

Crawl Space Encapsulation

Control moisture with vapor barriers, sealing, and ventilation improvements to protect floors, air quality, and insulation.



  • Manhattan, New York, NY, United States

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