Local Expert in Long Island for Foundation Repair Services

Zavza Seal LLC is a premier local foundation repair service provider with a wealth of experience in Long Island communities including Suffolk, Nassau, Brooklyn, and Queens. Our team of specialists is highly skilled in providing effective foundation repair services.

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Signs You Need A Foundation Repair In Your Home

There can be many signs of foundation damage that you should pay attention to and get a timely solution as soon as possible. Some of these include:

Jamming and sticking doors and windows

This could be caused by foundation settlement or loss of support in the crawl space.

Bowing foundation walls

Sagging, buckling, or inward movement of your foundation walls could indicate significant foundation problems.

Basement wall cracks

There are numerous causes of foundation wall cracks, each with a special remedy.

Sinking and foundation settlement

Many homeowners can wait months or even years before discovering a crack in their foundation due to the very subtle early signs of a settling foundation.

Have you discovered your home’s floors to be uneven? Are there more or larger cracks in the walls? Although these warning indications of a problem are typical, they may also be a symptom of serious foundation deterioration. 

Your family and home can be in danger so it’s critical to get foundation repair. You are not alone in needing to fix and safeguard your foundation. Our knowledgeable, helpful staff at Zavza Seal will accurately identify what’s wrong with your foundation and suggest the finest repair options for your home. Request your free inspection now to get going!

Benefits of Foundation Repair

There are many benefits of foundation repair, some of which are mentioned below:

  • Structural integrity and safety
  • The cost-effectiveness of repair over replacement
  • Increased value of real estate
  • Personal comfort in the home
  • Prevention of flooding and other damages.
  • Keeps your yard in good shape.

Causes Of Foundation Problems

An excessive amount of stress can be placed on basement walls by elements, including expanding clay soil, hydrostatic pressure, and freezing water, causing them to advance over time or collapse completely. The following context sheds more light on this.

Widespread, Wet Clay Soil

While clay-rich soils significantly change depending on their moisture content, sandy soils remain stable as water moves through them. Clay-type soils shrink as they dry out, sometimes to the point where the ground is covered in cracks. However, after a significant downpour, the earth is completely moist, and the shots are gone.

Hydrostatic Force

The force of gravity causes a fluid to exert hydrostatic pressure on it and even the hardcore lally columns are spared from it. Consider how much heavier soil gets when it absorbs water to understand how hydrostatic pressure might harm foundation walls. A foundation wall is under much more pressure when the earth’s weight and the water pressure are combined.

Ice Heaving

Frost heaving can occasionally exert enough strain on foundation walls in regions with harsh winters to cause them to collapse. Water’s volume increases by around 9% when it freezes. The resulting wedging or heaving force can be very strong if saturated soil undergoes a deep freeze. Thousands of pounds of force can be applied to your foundation walls by frost heaving.

Solutions For Foundation Repair

Your foundation must do a lot to sustain your entire house, and occasionally it could want some assistance. Having the appropriate answers to fix any harm and permanently stabilize the situation is crucial. The solutions we provide can be entirely customized to match the unique repair requirements of your property. We have everything you require to keep your house firmly planted.

Basement Wall Anchors

The Wall Anchor System provides the finest opportunity to straighten the basement walls without the expense and inconvenience of replacing the foundation since it permanently stabilizes your basement walls and fixes many foundation problems.

Crawl Space Support System

Our crawl space support system gives sagging and undersized beams strong support, restoring stability of drooping floor joists.

Foundation Wall Repair System

A unique foundation wall rehabilitation is projected to correct crooked walls over time while stabilizing deteriorating basement walls.

The Helical Pier System

Helical piers can stabilize sinking foundations by connecting wall footings and foundation walls to sound, load-bearing soils.

Do I Need Foundation Repair?

Just as your foundation is in charge of safeguarding the structural integrity of your home, it is your duty as a homeowner to provide it with some occasional maintenance. Your home may require foundation repair services to preserve its durability and address typical foundation problems.

It doesn’t matter how ancient or recently a home was constructed. Every house, regardless of age, is susceptible to foundation issues like sagging floors, stuck windows and doors, and cracked and bending walls. While construction problems can occasionally occur, the soil underlying a home’s foundation is typically the source of deterioration. Therefore, getting a timely foundation repair is critical.

Why Hire Us?

We focus only on waterproofing and insulation services


We focus only on waterproofing to ensure you work only with the best

We use only high quality products for Foundation repair

Quality Products

We use only high quality materials to ensure years of uncompromising performance

Our Foundation repair service is very cost effective

Cost Effective

We deliver quality waterproofing service at reasonable prices

We provide five star services

5 Star Service

Our team is committed to delivering 100% customer satisfaction

What’s Next?

Request a free estimate

Request a Consultation

Schedule a consultation now and share with us your needs

Schedule a consultation

Schedule a Meeting

We set up a phone call and a subsequent meeting on location to understand the size of your project

Request a quote / contract

Quote / Contract

We deliver a quote for your work and if you agree provide a contract to start the job

We do the service requested


Our team of experts performs the work on location

100% customer satisfaction assured

100% Satisfaction

Our project manager ensures you are completely satisfied with the results

5 Star Google & Home Advisor Reviews

100% Google's Five Star Reviews
100% Home Advisor Five Star Reviews


Five Stars Reviews 1

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.

Five Stars Reviews 2

Noemi Herles

Our experience with Zavza 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.

Five Stars Reviews 3

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.

Five Stars Reviews 4

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.

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