Local Expert in Long Island for Crawl Space Cracks Repair Service

At Zavza Seal LLC, we take pride in being your premier local crawl space cracks repair with extensive experience serving Long Island communities, including Suffolk, Nassau, Brooklyn, and Queens. Our dedicated team of specialists in Long Island utilizes cutting-edge tools and advanced techniques to address crawl space cracks and prevent further damage.

Request Your Free Crawl Space Crack Repair Estimate:

Keeping Your Home Dry is Our #1 Priority

Get A Free Estimate

Understanding the Causes of Crawl Space Cracks

Foundation cracks can result from various factors, including but not limited to:

Uncompact Soil

Inadequate soil compaction before construction can lead to uneven settling, harming the foundation.

Expansive Soils

Soils high in clay content can expand and contract with moisture, causing shifting and structural problems.

Weather Variations

Building on expansive soil during dry seasons can lead to swelling and damage when the soil absorbs moisture during rainy periods.

Poor Drainage

Water-related issues are a common cause of foundation problems. Inadequate drainage can lead to hydrostatic pressure against foundation walls, causing bowing and cracks.

Soil Creep

Homes built on slopes can experience foundation issues due to soil movement over time.

Natural Disasters

Earthquakes, floods, and other natural calamities can result in foundation problems.

Excavation Near Foundation

Extensive digging near a foundation can lead to settlement issues and cracks.

All these factors can contribute to crawl space cracks through differential settlement caused by soil movement or other issues.

When to Seek Professional Help?

Consider contacting a foundation repair professional when you observe:

  • Cracks that are expanding over time
  • Stair step cracks
  • Large diagonal or slanting cracks
  • Cracks extending along the ceiling and down a wall
  • Cracks wider than 1/10 inch
  • Cracks wider at one end
  • Horizontal foundation cracks, with or without bowing
  • Multiple vertical cracks nearby

Delaying repairs can result in more extensive and costly damage. Call an experienced foundation repair contractor to inspect crawl space cracks thoroughly.

Crawl Space Crack Repair Solutions

Various techniques address crawl space cracks, such as underpinning with push piers, helical piers, drilled concrete piers, or slab piers. Wall anchors, carbon fiber wall straps, epoxy, and steel I-beams can promptly reinforce wall fractures.

Pier Support

 Hydraulic jacks can lift and anchor a foundation to load-bearing soil, sealing up cracks.

Basement Wall Foundations

Excessive moisture around a house can lead to crawl space wall issues. We offer C-channel wall anchors, plate anchors, carbon fiber wall straps, I-beams, and epoxy to repair and strengthen your crawl space walls.

Basement Foundation Walls

Most crawl space foundation cracks occur in walls made of poured concrete. We address this with foundation piers and structural reinforcement using carbon fiber patches, preventing further crack development.

Trust Zavza Seal LLC for comprehensive crawl space crack solutions in Long Island. Your home’s structural integrity and safety are our top priorities.

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 Crawl Space crack repair

Quality Products

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

Our Crawl Space Encapsulation 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.

Google Review Logo Bottom