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JC Prestige Logo
jc masonry & concrete logo

Waterproofing & Foundation Repair

631-430-5910

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Waterproofing Contractors Long Island

At JC Masonry & Concrete, we provide reliable, code-compliant foundation solutions that keep your property protected for years to come. As experienced foundation waterproofing contractors Long Island homeowners and business owners depend on, we specialize in preventing moisture intrusion, stopping leaks, and stabilizing compromised structures.

 

Water damage and foundation failure often go hand in hand. That’s why our approach integrates waterproofing and structural repair to ensure your foundation stays dry, strong, and worry-free.

 

Our residential foundation services include:

  • Exterior foundation waterproofing membranes

  • Interior basement waterproofing systems

  • French drains and sump pump installation

  • Foundation crack injection and sealing

  • Wall reinforcement and carbon fiber straps

  • Crawl space encapsulation and drainage

  • Grading and re-sloping for surface runoff

  • Vapor barriers and sealants for added protection

 

Whether you’re dealing with a wet basement, foundation cracks, or early signs of shifting walls, we provide expert assessments and practical, long-term solutions. Our team uses proven methods and premium materials to address both active water intrusion and structural issues — before they become major repairs.

 

As your local foundation repair specialists on Long Island, we bring honesty, transparency, and technical precision to every job. We’ll never upsell you on unnecessary systems — just straight solutions you can count on.

631-430-5910

Foundation Repair Long Island

JC Masonry & Concrete is also a trusted provider of commercial foundation repair Long Island property owners count on for precision, performance, and code compliance. We partner with builders, property managers, and developers to protect commercial structures from moisture, settlement, and erosion-related damage.


Our commercial waterproofing and repair services include:

  • Foundation crack injection and wall stabilization

  • Exterior drainage correction and site grading

  • Retaining wall footings and waterproofing

  • Basement waterproofing for retail or multifamily buildings

  • Concrete slab repair and floor leveling

  • Industrial-grade waterproof coatings and barriers

  • Sump pump systems and backup drainage installations


We service:

  • Commercial buildings and storefronts

  • HOAs and apartment complexes

  • Churches and schools

  • Government buildings and public facilities

  • Warehouses and industrial structures


As a fully licensed commercial foundation contractor, we follow all structural codes, provide engineer-reviewed plans (when needed), and coordinate with general contractors or site supervisors to ensure smooth, on-time execution.


Why businesses choose JC Masonry & Concrete:

  • Decades of concrete and foundation experience

  • Fast response for time-sensitive repairs

  • Commercial-grade materials and techniques

  • Long-term warranties on waterproofing systems

  • Zero disruption to day-to-day business during repair


Your building’s foundation is its most critical element. If it’s compromised, your entire investment is at risk. Don’t wait for a leak to become a flood or a crack to lead to collapse.

631-430-5910