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Superior Waterproofing for All New York City Buildings

Reliable waterproofing in New York City is essential for protecting your property from heavy rain and moisture. C. Johnston Roofing & Waterproofing brings over 35 years of dedicated service to Manhattan and all five boroughs. Our family-owned local business provides outstanding home and business services to keep your property dry. Urban buildings face unique weather challenges, and proper sealing protects your valuable investment from water damage. We take great pride in delivering top-tier results to ensure your building has lasting safety and comfort.

flat roofing with HVAC systems

Our Core Waterproofing Solutions

Your property deserves tailored protection against heavy rainfall and moisture. Our team provides comprehensive solutions customized to your building’s specific layout, addressing vulnerabilities from top to bottom. Our services prevent leaks and stop moisture from causing long-term structural damage. We offer various methods to keep your home or business safe and dry, including:

  • Roof Waterproofing – Specialized coatings shield your roof from leaks and long-term moisture damage. These modern systems ensure your top floors stay dry during heavy storms.
  • Wall Waterproofing – Liquid sealants block rainwater from soaking into exterior brick and masonry, preventing moisture from creeping into your living space through the outer walls.
  • Foundation Waterproofing – Thick barriers stop groundwater from seeping into your basement or crawl space. Our drainage plans keep the bottom of your property sturdy and dry.
  • Balcony and Structural Waterproofing – Targeted treatments on outdoor decks and structures prevent rot by helping rainwater flow off to protect the important structural parts of your building.

Defend Your Property Against Water Damage

Don’t let wet basements and leaky walls cause expensive damage to your property. Take prompt action to stop water from entering your foundation to protect your valuable real estate investment. Our skilled team provides thorough checks to find every hidden leak. Property owners across the city trust C. Johnston Roofing & Waterproofingfor lasting results. Contact us to schedule a professional inspection and get a free estimate. Let us provide the strong moisture defense your property deserves, letting you enjoy peace of mind.

Get Your Free Roof & Waterproofing Estimate Today