Getting Started Is As Easy as 1, 2, 3.


Give Us a Call

Explain the Problem
Schedule an Appointment

Waterproofing Done Right!

Zavza Seal LLC – Long Island NY:

Zavza Seal is a locally-owned & operated premier waterproofing service provider in Long Island communities with a wealth of experience.

Our specialty includes:

✅ High-Quality Products     ✅ Cost Effective
✅ Trusted and Reliable        ✅ 20+ Years of Experience
✅ Insured and Licensed      ✅ 30 Years of Warranty
✅ 5 Star Service      ✅ 100% Customer Satisfaction

Call us now for a FREE ESTIMATE (631) 980-1800.

Our trust and reviews

Satisfied Customer Stories

Hear what our clients are saying about our services:

Gregory Paragh

basement five star service
“They complete the work to the specification they outlined or better, for a very reasonable price which they are willing to work with you on. Good people and great work.”


basement five star service
“The Zavza sealing company arrived promptly. The crew leader did an overview of the Job. Upon completion of the Job, The entire area was cleaned, and anything moved was replaced. Thanks for a great Job.”

Mike Delafraz

basement five star service
I was hesitant to accept their proposal since it was the best one! However, they arrived on time and were knowledgeable, respectful, and clean. Did more than expected and paid attention to any minor details. They even came an extra day to complete everything and ensure the Job was done to my 1000% Satisfaction.

Protect Your Property with an Expert Exterior Waterproofing Company


When it comes to safeguarding your home or business from water damage, one of the essential steps is to invest in exterior waterproofing. By hiring a professional exterior waterproofing company, you can ensure your property remains dry and protected from the elements. In this article, we will explore the importance of exterior waterproofing and the benefits of entrusting the task to a reliable and experienced company.

Signs of Water Damage

Before delving into the details of exterior waterproofing, it’s crucial to understand the signs of water damage that may indicate the need for such measures. Keep an eye out for water stains on the exterior walls, as these can signify water infiltration. Additionally, if you notice a persistent dampness or a musty odor in your basement, it may indicate moisture issues. Cracks in the foundation are another telltale sign of potential water damage.

Understanding Exterior Waterproofing

Exterior waterproofing is a process that involves creating a barrier to prevent water from seeping into the foundation or basement walls. Unlike interior waterproofing methods that manage water after it enters the structure, exterior waterproofing aims to keep water away from the foundation in the first place. This proactive approach is highly effective and offers several benefits, including improved structural integrity and enhanced indoor air quality. The key components of exterior waterproofing systems typically include waterproofing membranes, drainage systems, and proper grading.

Choosing the Right Exterior Waterproofing Company

Selecting the right exterior waterproofing company is essential to ensure a successful and reliable waterproofing solution. Start by conducting thorough research and evaluating multiple companies in your area. Look for companies with a proven track record and positive customer reviews. Check for proper licensing and insurance, as these credentials are indicative of professionalism and reliability. By taking the time to find the right company, you can have peace of mind knowing that your property is in good hands.

The Process of Exterior Waterproofing

The process of exterior waterproofing involves several key steps, each crucial to achieving a watertight foundation. It begins with an initial assessment and consultation where the waterproofing experts evaluate your property’s specific needs. Excavation and foundation preparation follow, ensuring a clean and stable surface for the waterproofing materials. Waterproofing membranes are then applied to the exterior walls, creating an impermeable barrier. Next, a drainage system is installed to redirect water away from the foundation. Finally, the excavation is backfilled, and the area is restored to its original condition.

The Role of Professional Expertise

Hiring an exterior waterproofing company brings invaluable professional expertise to the table. These experts possess specialized knowledge and years of experience in dealing with various waterproofing challenges. They stay up-to-date with the latest advancements in waterproofing technology and utilize advanced techniques to ensure long-lasting protection for your property. Furthermore, professional companies have access to specialized equipment and tools that are necessary for efficient and precise waterproofing installations.

Benefits of Hiring an Exterior Waterproofing Company

Investing in the services of an exterior waterproofing company offers numerous benefits for property owners. First and foremost, it provides long-lasting protection against water damage, reducing the risk of costly repairs in the future. By preventing water infiltration, exterior waterproofing also helps maintain the structural integrity of the building, minimizing the likelihood of foundation issues. Furthermore, a dry basement contributes to improved indoor air quality, ensuring a healthy living or working environment. Lastly, exterior waterproofing can increase the overall value of your property, making it a wise investment in the long run.

Costs and Return on Investment

While the cost of exterior waterproofing may vary depending on several factors, including the size of the property and the extent of the work required, it is important to consider the potential return on investment. By preventing water damage, you can save on future repair costs that may arise from foundation problems or mold growth. Additionally, a dry and functional basement can create extra livable space, further enhancing the value of your property.

Maintenance and Warranty

To ensure the continued effectiveness of your exterior waterproofing system, regular maintenance is crucial. Consult with the waterproofing company to understand the recommended maintenance routine, including periodic inspections and any necessary repairs. It is also important to familiarize yourself with the warranty coverage provided by the company. Understanding the terms and conditions of the warranty will help you address any potential issues that may arise in the future.


Protecting your property from water damage should be a top priority for any homeowner or business owner. Hiring an expert exterior waterproofing company is an essential step towards achieving this goal. By recognizing the signs of water damage, understanding the process of exterior waterproofing, and choosing the right company, you can safeguard your property from potential issues and enjoy the peace of mind that comes with a dry and protected space. Take proactive measures today to protect your property tomorrow.