Professional Waterproofing Services

Protect your property from water damage with expert waterproofing solutions. Basement, roof, and foundation specialists.

Expert Waterproofing in NYC

Water damage is one of the most common and costly problems facing property owners in New York. Whether you have a wet basement, a leaking roof, or water seeping through your foundation, ST Roofing & Construction LLC has the expertise to solve your waterproofing problems.

As ST General Waterproofing LLC, we specialize in all aspects of waterproofing for residential and commercial properties. Our experienced team uses proven techniques and quality materials to keep your property dry and protected for years to come.

Basement Waterproofing

Interior and exterior solutions to keep your basement dry. French drains, sump pumps, and sealants.

Roof Waterproofing

Protect flat and low-slope roofs with premium waterproofing membranes and coatings.

Foundation Waterproofing

Exterior and interior foundation sealing to prevent water infiltration and structural damage.

Leak Detection & Repair

Find and fix water intrusion points before they cause major damage to your property.

Why Professional Waterproofing Matters

Prevent Mold & Mildew

Excess moisture leads to mold growth which can cause health issues and damage belongings

Protect Foundation

Waterproofing prevents structural damage that can compromise your home's foundation

Increase Property Value

A dry basement and protected foundation add significant value to your property

Energy Efficiency

Waterproofing helps reduce humidity, making your home more comfortable and efficient

Peace of Mind

Know your property is protected during heavy rains and NYC's harsh weather

Cost Savings

Prevent expensive repairs caused by water damage, mold remediation, and foundation issues

Signs You Need Waterproofing

  • Water Stains - Brown or yellow stains on walls or floors indicate water intrusion
  • Mold or Mildew - Musty odors or visible mold, especially in basements
  • Foundation Cracks - Cracks in foundation walls or floors allow water to enter
  • Efflorescence - White powdery residue on walls indicates water evaporation
  • Bowing Walls - Walls that bow or bulge indicate water pressure buildup
  • High Humidity - Excessive humidity throughout your home

Our Waterproofing Process

1

Free Inspection & Assessment

We thoroughly evaluate your property to identify water intrusion sources and problem areas.

2

Custom Solution Design

We develop a tailored waterproofing plan based on your specific needs and budget.

3

Professional Installation

Our experienced team installs your waterproofing system with quality materials and craftsmanship.

4

Guarantee & Follow-Up

We stand behind our work with warranties and ensure your complete satisfaction.

Protect Your Property Today

Get professional waterproofing solutions. Free inspections and estimates!

Waterproofing Project Gallery

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Frequently Asked Questions

Waterproofing costs vary based on the area to be treated, the method used, and the severity of the problem. We provide free estimates with detailed pricing so you know exactly what to expect.

Interior waterproofing addresses water already inside your basement (French drains, sump pumps, sealants). Exterior waterproofing prevents water from entering in the first place (exterior membranes, drainage systems). Often, a combination provides the best protection.

Quality waterproofing systems can last 10-20+ years or more with proper maintenance. We'll explain the expected lifespan of your specific solution and provide maintenance tips.

Having a wet basement can significantly impact your home's value and saleability. Many buyers request waterproofing as a contingency. Investing in waterproofing before selling can actually increase your home's value and attract more buyers.

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