Basement waterproofing contractors stop water from entering below-grade spaces and manage the water that collects around a foundation. They diagnose where moisture comes from and install systems such as interior drainage, sump pumps and exterior membranes.
Common basement waterproofing services include:
Call a waterproofing contractor when your basement leaks after rain, you see damp walls, efflorescence or puddles, or your sump pump runs often or has failed. Yard runoff and grading problems are handled by drainage contractors.
We're a Bronx basement waterproofing company that fixes wet basements for homeowners across the borough. We specialize in waterproofing. We don't sell it alongside roofing, siding, and deck work the way most of our competition does, and every person on your crew has worked in Bronx clay soil and Bronx flood zones specifically.
WAAN Restoration LLC offers expert renovation and restoration services in New York & New Jersey. From roofing and waterproofing to full home remodels, masonry, and stucco, they deliver high-quality, reliable results for residential and commercial projects.
Basement Waterproofing Brooklyn Pros is a Brooklyn-based waterproofing and foundation repair company with over 20 years of experience serving residential and commercial customers across Brooklyn and surrounding areas. The company provides basement waterproofing, basement crack repair, foundation repair, crawl space waterproofing, sump pump installation, and French drain installation, and emphasizes high-quality workmanship, affordable pricing, free estimates, flexible payment plans, and NYC-licensed and insured status to deliver reliable, long-lasting solutions and peace of mind to homeowners and businesses.
Bonded Waterproofing Solutions is a family-owned basement and foundation waterproofing contractor established in 1980 that serves Northern New Jersey and Rockland County, NY, and has completed waterproofing work on over 50,000 homes and businesses; Bonded Waterproofing Solutions provides comprehensive services including basement waterproofing, foundation repair, crawl space vapor barrier installation, French drains, landscape drainage, sump pump services and related products (dehumidifiers, air purifiers, battery-backed sump systems), offers life-of-structure warranties and discounts for seniors and first responders, and emphasizes experience, quality workmanship, fair pricing, and prompt estimates.
Construction Repair NYC is a family-owned general contracting and building-repair company with over 28 years of experience providing turnkey masonry, waterproofing, roofing, concrete, facade and brownstone restoration, sidewalk and driveway repair, stucco and brick pointing, painting, skylight and commercial contracting services. Construction Repair NYC pairs on-site assessments, architects and builders, licensed and insured crews, and project management to handle repairs, restorations, violation removals and renovations, and the company offers financing options and free estimates while serving Bronx, Queens, Brooklyn, Manhattan, Long Island and surrounding areas.
F & F Contracting USA Inc is a Brooklyn-based general contractor with 18 years of experience delivering full-service interior and exterior construction across the five NYC boroughs, Long Island, Westchester and parts of New Jersey; F & F Contracting USA Inc specializes in roofing, masonry, waterproofing, brownstone restoration, and interior remodeling (including kitchens and bathrooms), manages permits and DOB filings, is licensed, bonded and insured, provides free detailed estimates and transparent pricing, and focuses on quality materials, timely project management and customer satisfaction from design through final delivery.
Gemini Waterproofing and Restoration is a family-owned restoration and waterproofing firm based in Midtown Manhattan that for decades has specialized in the restoration and maintenance of New York’s buildings. Gemini Waterproofing and Restoration provides Local Law 11 façade inspections and reporting, roofing with manufacturer-backed guarantees, general contracting, and comprehensive waterproofing and restoration services, and the company employs licensed riggers, certified welders and scaffold-certified personnel, is fully insured and bondable, and emphasizes a strong safety record and experienced project management to preserve and maintain the city’s built environment.
HRC Waterproofing Inc is a family-owned and owner-operated waterproofing, foundation and masonry contractor based in Jamaica, NY that has served New York City, Nassau County and Westchester County since 1998. HRC Waterproofing Inc provides interior and exterior waterproofing, basement waterproofing, foundation and structure repair, foundation crack repair, crawl space encapsulation, sump pump installation and maintenance, commercial and residential waterproofing, site work and drainage, concrete and masonry, roofing and renovation services; the company emphasizes proven local expertise with more than 25 years of hands-on experience, use of quality materials, free inspections and estimates, owner-led service and financing/discount options to help prevent water damage, mold and structural problems.
Leak Proof Masonry & Waterproofing is a family-owned masonry and waterproofing contractor serving New York (Brooklyn) that focuses on foundation repair, basement waterproofing, masonry restoration and related roofing, chimney and guttering services. The company presents itself as licensed and insured with decades of experience and emphasizes quick, customer-focused service including emergency response and inspections. (Sources: company contact page and local listing).
Queens Mold Removals is a New York City–based mold remediation specialist located in Jamaica, NY that provides mold inspections, certified mold removal and remediation, 24/7 emergency water and flood damage restoration, lead assessment and remediation, and environmental testing and inspections; Queens Mold Removals creates custom remediation plans that address both contamination and underlying moisture sources to restore indoor air quality and protect occupant health, offers free estimates, and accepts online and phone inquiries for scheduling and emergency response.
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A basement waterproofing contractor finds where water is getting in and installs solutions such as interior drain tile and sump pumps, exterior waterproofing, crack sealing and window well drainage to keep the basement dry.
Common causes include water pressure in saturated soil, cracks or gaps in foundation walls, leaks where the wall meets the floor, poor grading, overflowing gutters and failing window wells. Identifying the source helps decide between interior and exterior solutions.
Get more than one opinion, ask each contractor to explain where water is entering and why their solution fits, and compare written warranties. Be cautious of recommendations that ignore simple fixes such as downspout extensions or grading.
Cost depends on the basement's size and finish, the method used, the length of drainage installed, sump pumps and backups, excavation for exterior work, and access around the house. Finished basements may need walls or flooring removed.
Move stored items, furniture and finishes away from the basement walls where crews will work, and expect dust and noise during installation. Ask where discharge lines will run outside and whether an electrical outlet is available for a sump pump.