Top-Rated Waterproofing Contractors in Long Island
Long Island structures are constantly exposed to salty air due to Nor'easters and hydrostatic pressure because of rising water tables. Given the weather conditions in the region, water intrusion, freeze-thaw-related cracks, and mold are common problems residents and building managers face almost every day.  Having a Long Island-based waterproofing partner by your side for preventive maintenance and timely repairs can save a lot of money and stress. That’s why 5 Boro Construction Services recommends regular inspections by professional waterproofing contractors.
Reliable Waterproofing in Long Island
With years of experience in waterproofing New York properties, we prioritize superior quality and longevity. Experts at 5 Boro Construction Services do everything from leakage prevention and crack sealing to mold prevention and providing structural protection. Businesses and property owners across Long Island rely on our waterproofing solutions to live stress-free through harsh coastal conditions.
Licensed, Insured, and DOB-Compliant Waterproofing Solutions
As licensed, insured, and experienced waterproofing contractors, we provide direct, long-term remedies for structural leaks. All our systems are fully DOB-compliant, ensuring your property meets local building codes and you stay free of penalty worries.
Full Range of Waterproofing Services for Long Island Properties
Our waterproofing contractors in Long Island ensure foundation-to-roof protection for your structures:
Basement Waterproofing
We seal interior walls and floors to halt active water seepage. This helps make lower levels functional.
Foundation Waterproofing
Our Heavy-duty bituminous or liquid barriers on exterior walls prevent water from penetrating the concrete.
Drainage Systems
Gravel-bedded interior French drains and commercial-grade sump pumps collect and direct rising water away from the structure.
Vapor Barriers
Strategically placed thick, tear-resistant membranes cover concrete slabs and crawlspaces to prevent soil moisture from moving upward. Our crews also eliminate musty smells and protect interior finishes.
Roof Waterproofing
From flat-roof protection to single rubberized shields, our experts handle it all, plugging the leaks where they start.
Exterior Waterproofing
To prevent rain from soaking into building envelopes, we treat exterior brickwork, block walls, and lintels with breathable waterproof coatings.
Commercial Waterproofing & Leak Prevention
A sudden structural leak could affect tenants, spoil inventory, and lead to costly code violations. Our commercial waterproofing experts service industrial warehouses, multi-family homes, and storefronts across Long Island. We emphasize proactive leak prevention through targeted maintenance. Our qualified inspectors identify failing window caulking, worn parapet flashing, and clogged roof drains to resolve minor issues before they turn into something big.FAQs
Concrete is naturally porous and acts like a sponge. It absorbs ground moisture that evaporates into the room. A heavy-duty vapor barrier cuts off this transmission, protecting your floor finishes and preventing mold growth underneath rugs or floorboards.
Injection-based crack sealing is highly effective for localized concrete repairs. However, if the root cause is severe hydrostatic pressure from a high-water table, you might need professional expertise to identify the root cause. After careful inspection, our experts recommend an interior drainage system or exterior foundation waterproofing and provide transparent cost and time estimates, along with a complete material list.
How Can We Help
If you need any helps, please feel free to contact us.
Contact Phone
+1 718-545-8000
Contact Mail
[email protected]
Contact Location
23-57 83rd Street East Elmhurst, New York 11370
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