210 E 117th St, New York, NY 10035 Call: (212) 831-0400 | info@bandow.space
B Bandow Co., Inc Waterproofing • New York, NY

Waterproofing Company in New York, NY

Bandow Co., Inc is a New York City waterproofing contractor based in Upper Manhattan. We help homeowners, building managers, and businesses keep basements dry, walls protected, and structures sound — with practical, long-lasting solutions.

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Our Waterproofing Services

From damp basements to leaking exterior walls, we provide focused waterproofing services for buildings across New York City.

Basement Waterproofing

Interior and exterior treatments to keep basements dry, including drainage, sealing, and moisture barriers.

Moisture Control

Identify the source of dampness and apply the right combination of ventilation, sealing, and barriers.

Leak Prevention

Locate weak points before they fail. We seal joints, cracks, and entry points to stop water intrusion.

Wall & Surface Waterproofing

Coatings, membranes, and exterior treatments for brick, concrete, and masonry walls.

Residential Waterproofing

Brownstones, townhouses, and apartment buildings — practical solutions tailored to NYC properties.

Commercial Waterproofing

Storefronts, mixed-use buildings, and commercial properties protected from water damage.

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Why Choose Bandow Co., Inc

A small, focused team that works directly with property owners and managers — without the runaround.

Local to New York

Based in Upper Manhattan with first-hand knowledge of NYC building types, soil conditions, and seasonal weather patterns.

Practical Recommendations

We diagnose the actual cause of water issues and recommend what genuinely solves the problem — not unnecessary upsells.

Clear Estimates

Written estimates with scope, materials, and timeline so you know exactly what the work involves before we begin.

Residential & Commercial

Comfortable working on brownstones and single-family homes as well as mixed-use buildings and commercial spaces.

Interior basement waterproofing work in progress

Built for New York Buildings

NYC properties present specific challenges — older masonry, shared walls, tight access, and demanding weather. We work with these realities every day. Whether your basement floods after every storm or a stubborn leak keeps reappearing on a wall, we focus on finding the cause and applying the right repair.

From single homes in Harlem and Washington Heights to commercial buildings across Manhattan, we approach every project the same way: inspect, diagnose, explain, and do the work properly.

About Our Company

Service Area

Bandow Co., Inc serves property owners throughout New York City, with a focus on Upper Manhattan and surrounding neighborhoods.

  • Upper Manhattan
  • East Harlem
  • Harlem
  • Washington Heights
  • Inwood
  • Upper East Side
  • Upper West Side
  • Bronx
  • Brooklyn
  • Queens

Need Waterproofing Help?

Call our team or request a written estimate. We'll review your situation and recommend a clear plan for stopping water issues at your property.

Call (212) 831-0400 Request Estimate