Roof Waterproofing Services in New York

Welcome to A. Stewart Roofing, your trusted source for top-tier roof waterproofing services in New York, where rain, sleet, and snow are yearly companions. When it comes to safeguarding your property from the elements, our roofing waterproofing solutions stand as your first line of defense. With a commitment to excellence and a keen eye for detail, we specialize in delivering state-of-the-art roof waterproofing that ensures your peace of mind, rain or shine. Whether you are in need of residential or commercial roofing waterproofing, our team of experts is equipped with the latest techniques and high-quality materials to protect your investment. Discover how A. Stewart Roofing can elevate the longevity and durability of your roof through our expert roof waterproofing services. Don’t let leaks and moisture damage compromise your property – secure your future with our professional roofing waterproofing solutions today.

Understanding Roofing Waterproofing

Waterproofing can be accomplished with a variety of materials. In recent years liquid membranes have become quite popular, due to their efficiency and low environmental impact. Some of the best materials for this method include urethane, PMMA, elastomeric, silicone and polyurethane. Most coatings come in the form of a white color which is reflexive, which will redirect UV radiation while simultaneously reducing the temperature of the roof.

Why Do Roof Waterproofing in New York City?

Most of the older roofs in the New York area use roofing membranes which are single ply. This includes EPDM or bituminous membranes. Attempting to replace these old roofs completely is typically not cost effective, but over the last few years New York contractors have begun using roofing systems which can be liquid applied. Due to the demand for roofing services in NYC, roofing firms are adept at selecting the correct materials which are compatible with an existing roof. If the wrong material is used the consequences can be dire, which is why contractors will first evaluate the existing roof before making a recommendation

Roof waterproofing service on a flat roof in New York.

The Roof Waterproofing Process

At A. Stewart Roofing, we take a meticulous approach to ensure your roof is effectively waterproofed, protecting your property from the elements. Our step-by-step process is designed to deliver long-lasting results:

1. Roof Inspection

Our experts begin by thoroughly inspecting your roof to assess its current condition, identifying any existing damage, weak points, or areas of concern.

2. Surface Preparation

We clean the roof surface, removing debris, dirt, and any loose materials. This ensures a clean and smooth base for waterproofing.

3. Repairs and Reinforcement

Any identified damage, such as cracks or holes, is repaired to ensure the structural integrity of your roof. We reinforce weak areas to prevent future issues.

4. Waterproof Coating Application

We apply a high-quality waterproof coating that forms a protective barrier on your roof’s surface. The choice of coating material depends on your roof type and specific needs.

5. Seam and Joint Sealing

Ensuring watertight seams and joints is critical. Our experts pay special attention to these areas, applying sealant to prevent water infiltration.

6. Proper Drainage

Proper drainage is essential to prevent pooling water. We ensure that your roof has adequate drainage systems to redirect water away from the structure.

7. Quality Assurance

We conduct a thorough quality check to confirm that every aspect of the waterproofing process has been executed to the highest standards.

8. Cleanup

After completing the project, we clean up the work area, leaving your property in the same condition as when we arrived.

Types of Roofs We Can Waterproof

At A. Stewart Roofing, we offer roof waterproofing services for a variety of roof types. Our expertise extends to:

  • Flat Roofs: Ideal for commercial properties, flat roofs require special attention to ensure proper water runoff and protection.
  • Pitched Roofs: Whether you have a gable, hip, or shed roof, we have the knowledge and materials to waterproof your pitched roof effectively.
  • Metal Roofs: Metal roofing can benefit from waterproofing to prevent corrosion and leaks, and we have experience in working with various metal roof materials.
  • Shingle Roofs: Asphalt shingle roofs are common in residential properties. Our team is skilled in providing waterproofing solutions that preserve the integrity of shingles.
  • Tile Roofs: Tile roofs are beautiful but can be vulnerable to water damage. Our waterproofing solutions ensure your tile roof remains both functional and attractive.
  • EPDM Roofs: Ethylene Propylene Diene Monomer (EPDM) roofs are popular for their durability, and we offer waterproofing solutions to enhance their longevity.
  • Modified Bitumen Roofs: These roofs benefit from waterproofing to maintain their elasticity and protect against water infiltration.
  • Built-Up Roofs: Also known as tar and gravel roofs, built-up roofs are strengthened with our waterproofing services to resist water damage.

No matter your roof type, A. Stewart Roofing has the expertise and materials to provide effective and lasting waterproofing solutions tailored to your specific needs.

Man using a torch to lay down a waterproof material on a roof.
Different types of roofs we can waterproof.

Benefits of Roofing Waterproofing

One advantage of roof waterproofing is lower humidity. As it stops the infiltration of water, no cracking will occur. Cracking is a leading cause of shrinkage and the separation of seams which in turn cause roof leaks. By reducing the amount of moisture that enters a building, humidity will drop, which allows the air to be more efficiently cooled during summer. A second benefit of roof waterproofing a roof is the lower maintenance requirements.

When a liquid proof coating is placed on top of the existing roof, the altered bitumen is much simpler to maintain and repair. The maintenance costs will also be lower, with fewer problems to deal with. Additionally, waterproofing a roof will make it far more energy efficient. This is because the coating is formulated in such a way where the ingredients are extremely reflective, which means IR radiation emanated by the sun will bounce back, away from the structure. This will lower cooling costs. Some waterproofing products are also eligible for rebates, which is another bonus. Many NYC contractors prefer products that have been certified Energy Star, as these products typically have warranties which guarantee optimal energy usage.

Why Choose Us for Roof Waterproofing Services in NYC?

Stewart Roofing and Waterproofing is a reputable New York contractor that has extensive experience waterproofing roofs of all types. We use silicone, urethane and acrylic coatings which can be applied to an existing roof without the need to tear off or replace anything, which will save you a great deal of money. The roofing waterproofing we provide will also repel heat rather than absorb it, which means it will last much longer. Contact us today for a free estimate.


What is roof waterproofing, and why is it important?

Roof waterproofing is a process that involves applying a protective layer or coating to your roof to prevent water infiltration. It is vital to maintain the structural integrity of your roof and prevent costly water damage to your property.

What are the signs that my roof needs waterproofing?

Signs include water stains on your ceiling, walls, or attic, leaks during rainy or snowy weather, and deteriorating shingles or roof materials. If you notice any of these issues, it’s time to consider roof waterproofing.

How often should I consider waterproofing my roof in the Northeastern U.S.?

In regions like New York with significant rainfall and snowfall, it’s advisable to waterproof your roof every 5-10 years or as soon as you notice signs of damage.


Is roof waterproofing cost-effective in the long run?

Yes, roof waterproofing is a cost-effective investment. It extends your roof’s lifespan, reduces the need for costly repairs, and helps you avoid water damage repair bills.