The Problem

A homeowner in Northport, NY noticed signs of settlement inside their home. Certain areas of the floor appeared uneven, particularly near a long metal beam that had been installed years earlier.

Settlement can be caused by many different structural issues, including:

• Cracked or damaged floor beams
• Weak or damaged floor joists
• Settling footings
• Soil movement beneath the home
• Compromised support columns
• Foundation-related problems

The challenge was that the home’s crawl space, where the structural system could be inspected, had no accessible entry point. Without access, it was impossible to determine the exact cause of the settlement or recommend an appropriate repair plan.

In addition, the basement contained an old vault area with a block opening that needed to be permanently sealed and stabilized.

The homeowner needed a safe way to access the crawl space for a professional structural evaluation while also securing the abandoned vault area.

Our Solution

After evaluating the property, the Zavza Seal team developed a two-part solution.

Basement Vault Closure and Stabilization

To permanently seal the unused vault and improve the structural integrity of the area, we performed a complete closure of the opening.

Our team:

• Disconnected the existing electrical outlet serving the area.
• Installed #6 vertical reinforcing steel bars.
• Added Durawall horizontal reinforcement for additional lateral strength.
• Constructed a reinforced masonry wall.
• Filled the masonry blocks solid to create a durable structural barrier.
• Left the existing door in place and aligned it as required.

To address the upper portion of the vault located beneath the patio deck, we:

• Carefully removed deck boards above the vault.
• Exposed the top of the vault structure.
• Filled the vault cavity with compacted grit-mix material.
• Installed a concrete cap over the filled area.
• Reinstalled the deck boards to restore the patio surface.

This process permanently eliminated the void while improving stability beneath the deck area.

Crawl Space Access Creation

To properly investigate the settlement issue, access to the crawl space first had to be created.

Our team:

• Removed the existing basement stairs.
• Opened a section of the basement wall to create a new access point.
• Reinforced the opening to ensure the structural loads above remained properly supported.
• Carefully designed the opening to prevent future cracking or settlement around the new access area.

Once access was established, we were able to enter the crawl space and begin a detailed structural investigation.

Structural Investigation

Inside the crawl space, our team examined the home’s support system, including:

• Structural beams
• Floor joists
• Support posts
• Foundation components
• Footings
• Crawl space conditions

The investigation allowed us to identify potential causes of the settlement and gather the information needed to develop a targeted structural repair plan for the homeowner.

Custom Crawl Space Hatch Installation

After completing the investigation, we installed a custom-built crawl space hatch to provide safe and convenient future access.

The hatch included:

• A pressure-treated wood frame
• Cut-to-size pressure-treated plywood
• Secure fastening with wood screws
• Long-lasting materials designed for basement conditions

The new hatch provides permanent access for future inspections, maintenance, and repairs.

The Result

The homeowner now has a safely sealed and stabilized vault, along with a professionally constructed crawl space access point that allows for ongoing inspection of the home’s structural system.

Most importantly, the new access enabled a thorough investigation of the settlement issue, allowing the homeowner to move forward with confidence and make informed decisions about any future structural repairs.

By addressing both the vault closure and crawl space accessibility challenges, Zavza Seal helped create a safer and more manageable foundation system for the property.

Why Crawl Space Access Is Important?

Many structural problems originate beneath the home. Without proper access, issues such as damaged joists, settling footings, moisture problems, and foundation movement can remain hidden for years.

Creating safe crawl space access allows homeowners and contractors to inspect critical structural components, identify problems early, and develop effective repair strategies before conditions worsen.

Need Structural Investigation or Crawl Space Access in Northport, NY?

Zavza Seal specializes in structural investigations, foundation repairs, crawl space solutions, basement waterproofing, and masonry restoration throughout Long Island and the surrounding New York area.

Our experienced team helps homeowners identify hidden structural issues and develop practical, long-term solutions to protect their homes.