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Leak Detection and Waterproofing Services in NYC

We are the best waterproofing contractors and specialize in leak detection in New York City

What Should I Know To Rent A Waterproofing Contractors?

waterproofing contractors NYC

Waterproofing contractors are professionals who protect your buildings against water damage. They search for leaks, seal cracks and apply waterproofing materials to basements, walls, foundations and roofs. They use modern mechanisms and tools to prevent mold growth, water intrusion and decay. Their aim is to keep your residential, industrial or commercial property dry and durable.

There is careful planning required in order to hire a waterproofing contractor in NYC who delivers quality and long lasting results. First of all, look for local contractors with expertise and good reputation having verifiable expertise in waterproofing. Make sure they adhere to safety and building codes by reviewing their certifications and licenses. Check out for the reviews and client references to evaluate reliability

  • A professional waterproofing contractor.
  • Provides a thorough examination to find places of water entry.
  • Produces a written estimate with materials, processes and project schedule.
  • Employs latest leak detection tools and durable waterproofing membranes.
  • Provides warranty and post services assistance.

Choosing a qualified and insured contractor protects your space from moisture damage and increases property value.

Why Early Leak Detection Matters

At Sigma Builders, we specialize in leak detection and waterproofing services across New York City including Brooklyn, Queens, Bronx and Manhattan. We make sure your property is protected in terms of water intrusion, foundation and structural integrity with our advanced diagnostic tools and waterproofing systems.
Water infiltration can be caused due to faults in exterior walls, invisible cracks or failed waterproofing membranes. When they are left unnoticed, moisture leads to mold growth, electric hazards, damp walls and structural decay in the long run. Sigma Builders helps you detect leaks beforehand and avoid costly repairs in the years to come.

Our Waterproofing Services NYC Includes:

Customized to the needs of your structure, Sigma Builders provides a whole range of services:
Foundation Waterproofing NYC

Foundation Leak Repair

Whether it’s a crack in the footings or hydrostatic pressure behind the wall, we locate the source and implement a helpful repair strategy.
basement waterproofing nyc

Basement Waterproofing

To stop water seeping through foundation walls or floor slabs, we handle both positive-side and negative-side techniques.
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Exterior Wall Waterproofing & Sealing

We use high quality waterproofing membranes and coatings for brick pointing, exterior facades, parapet walls, and other surfaces that are vulnerable.

Systems for Membrane Installation and damp control

We guarantee long term performance with proven solutions by applying drainage systems, bituminous barriers and liquid-applied membranes.

Interior water-management & Remediation

We provide efficient interior drainage, sump pumps and mold mitigation if water has already entered.
waterproofing services nyc

Efficient Detection Process by Leak Repair Specialists

  • We begin with a thorough inspection of your property which includes moisture mapping, visually checking walls, slabs and floors, and if infrared thermography where needed.
  • We find the origin of water seepage – whether it is coming from cracked walls, defective joints or ground water.
  • After inspection we provide a detailed report on the issues with solutions and their affordable options.
  • The experts at Sigma Builders implement the approved solution of the waterproofing system and test its outcome.
  • We ensure your waterproofing system keeps working with our follow up maintenance advice.

Exterior Wall Waterproofing

Interior Basement Waterproofing

Negative Side Waterproofing

Positive Side Waterproofing

Basement Waterproofing

Windows Waterproofing

Windows Lintel Replacement

Windows Lintel

Window replacement

Windows Sill Repair

Window Lintel Repair

Windows Repair Contractors

Signs You May Need Professional Waterproofing Services

You may need waterproofing service if you notice the following signs:

  • Damp or musty smells in a basement
  • Visible mold, mildew (a thin whitish coating) or efflorescence (white powdery deposits) on walls
  • Cracks in foundation walls, floors or around windows
  • Water stains, bubbling plaster or peeling paint inside rooms
  • Leaks or persistent moisture after heavy rain
  • Metal fixture corrosion, rusting beams or water-damaged flooring
    • Leak Detection Waterproofing

    Commercial Waterproofing Services in New York City

    To prevent your property from water infiltration and structural damage, Sigma Builders offers reliable commercial waterproofing services in New York City. Our professionals apply the latest waterproofing solutions created for long-term endurance on structures ranging from multi-story buildings to retail shops, or office spaces. We specialise in exterior wall protection, foundation waterproofing, roof and terrace sealing, and basement damp proofing for commercial buildings. High-performance waterproofing membranes, coatings, and sealants produces a moisture-resistant barrier that stops leaks and maintains the structural integrity of a property. Our team thoroughly inspects, finds flaws, and offers customized fixes that abide by the environmental standards as well as NYC building regulations. Sigma Builders guarantees minimal disruption to your activities and provides long-lasting protection with structural waterproofing systems and years of experience.
    Water proofing nyc

    Frequently Asked Questions

    Yes, exterior walls exposed to weather are highly vulnerable to cracks and moisture penetration. A professionally installed waterproofing system helps preserve facade integrity and keeps water out.

    Depending on the structural load and surface type, single-ply synthetic membranes or cold-liquid applied resins are best which form seamless protective layers.

    Our solutions significantly reduce the risk of water ingress. We also provide maintenance advice to extend the lifespan of your waterproofing.

    Testimonials

    I contacted Sigma Builders Inc. Company for the purpose of waterproofing the premises: basement, roof, interior. Satisfied with the work done, confident top five in quality! The price turned out to be slightly lower than the market price, which compares favorably with other commercial offers. I found out about the delay in a timely manner and immediately get l rationale and solutions. I often use and decided to write about my experience of working with this organization
    Ishita Malhotra
    Ishita MalhotraHR Manager, WeServe LLC.
    ⭐⭐⭐⭐⭐
    Last year I used the services of Sigma Builders Inc. They made my repairs to the roof of a private house. Some kind of unhappy roof for me leaks every year. Three years in a row at different places of the leak. Therefore, in principle, I got used to ordering roof repairs again after winter. The materials are of high quality, everything is fine. We were satisfied with the quality of the services provided.
    Kylo James
    Kylo JamesHR Manager, WeServe LLC.
    ⭐⭐⭐⭐⭐
    Last year, I chose a company for a long time to carry out work on waterproofing the roof in the country. After reading reviews about Sigma Builders Inc about completed projects and extensive experience in this area, I decided to trust them. I didn't have to wait long, the estimate was made quickly, and the cost fully corresponded to my expectations. Compared to other construction companies, the price of complex works using liquid rubber is quite acceptable.
    Ella Perez
    Ella PerezHR Manager, WeServe LLC.
    ⭐⭐⭐⭐⭐
    Sigma Builders Inc. and its team were professional from start to finish, communication was excellent, and they attended to the work promptly and efficiently. Special mention to the team who did a fantastic job. I would not hesitate to use this company again for any waterproofing work. They are highly recommended.
    Elsie Ross
    Elsie RossHR Manager, WeServe LLC.
    ⭐⭐⭐⭐⭐