Waterproofing and Insulation
Mold Removal and Water Damage Restoration Services

Waterproofing Basements

Insulation Services

Mold Remediation Water Damage Restoration Services

Foundation Crack Repair

Waterproofing Parking Structures

Got a wet Waterproof Basement?

Need your foundation waterproofed?

Looking to insulate your home or business?

Need your concrete crack repaired?

Get A Free Estimate

We Build Trust

Zavza Seal is an experienced general contracting firm with a passion for delivering excellence. Serving Long Island communities including Suffolk, Nassau, Brooklyn, and Queens. We are a one-stop shop construction company that specializes in Waterproof Basement, and insulation along with foundation waterproofing services.

If you are considering any type of solution for foundation waterproofing or insulation services, we are here to help and can provide valuable, time-saving advice.

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Our Vision

To become the preferred choice for homeowners and commercial businesses by providing exceptional insulation, Waterproof Basement and mold remediation services. By utilizing high-tech, environmentally friendly materials, and exceptional customer service, we strive to delight our customers and provide stellar service at affordable prices.

Our Mission

To provide unparalleled Waterproof Basement, insulation and mold remediation services to homeowners and commercial customers. We deliver 100% guaranteed customer satisfaction by using best practices, innovative environmentally friendly products, and exceptional customer service at a great value.  Our team of dedicated professionals ensures that our customers live in a comfortable, healthy environment while reducing their energy consumption and environmental impact.0

Our Services in Long Island of Waterproof Basement:


5 Stars

Annette Casatelli

I received a few quotes to get the walls in my home filled in with blown in insulation. Zavza Seal was affordable and they did an excellent job.

They were very concerned with cleaning up, which I appreciated. I felt the difference in my home immediately. No more freezing cold walls. I recommend them, hands down.


Noemi Herles

Our experience with Savza Seal was wonderful and smooth. The crew is well organized. They listen to your plans. They showed out in time. They left everything clean. They did an amazing job! I highly recommend this company.


Ellen Szuchmacher

Efficient, courteous and responsible workers. The job was quoted as being completed in 2 days but more work was required and they returned on the 3rd day and completed the job without additional charges. They reinsulated my crawlspace (not an easy job). I recommend Zavza Seal without reservation.


Michael Rutigliano

Couldn’t be more satisfied with the job Zavza Seal did. Brendan and Jake were accommodating, fair and extremely knowledgeable. Their team worked incredibly hard that day under difficult conditions and did a great job. I manage a multi-unit HOA and we will definitely be using them again.
Zavzaseal Parking Lot Insulation Installation Company Review