A homeowner in Great Neck contacted Zavza Seal after experiencing long-term water related issues around the basement and exterior deck area.

Water from the roof was repeatedly draining onto the deck, allowing moisture to collect around the structure over many years. This ongoing exposure created serious voids and cavities in the soil underneath the deck, raising concerns about stability and possible structural collapse.

Inside the basement, several additional issues needed attention. The basement stairs had damaged carpeting, the windows were outdated and deteriorated, and the drywall areas required finishing work and replacement of old baseboard moldings.

The homeowner wanted a long-term solution that would improve both safety and appearance while helping protect the property from future water damage.

Inspection and Water Management Planning

Our team from Zavza Seal performed a detailed inspection of the affected areas to determine the extent of the water intrusion and soil deterioration.

We identified that one of the major causes of the problem was uncontrolled roof water discharge onto the deck area. Over time, the constant moisture weakened the soil beneath the structure and created underground voids.

Before cosmetic repairs could begin, the underlying water and structural concerns had to be addressed properly.

For homeowners dealing with similar drainage concerns, the Federal Emergency Management Agency (FEMA) flood protection guidance provides useful information about protecting residential properties from long-term water damage.

Stabilizing the Voids Under the Deck

One of the most important parts of the project involved stabilizing the compromised soil beneath the deck.

Our crew used a high-pressure pumping system to inject cement into the underground cavities and voids beneath the topsoil. This process helped fill empty spaces, strengthen the area, and reduce the risk of future settlement or structural movement.

By reinforcing the weakened ground conditions, we were able to restore stability underneath the deck and help protect the structure long term.

Basement Stair Restoration and Interior Improvements

After the structural stabilization work was completed, we moved on to the basement interior restoration.

The damaged carpet on the basement stairs was removed completely. The stair surfaces were then sanded and properly prepared before being coated with durable high-performance paint designed to hold up against wear and moisture exposure.

This gave the staircase a cleaner appearance while also creating a more durable and easier-to-maintain finish.

Replacing Damaged Basement Windows

The basement also had three old and deteriorated windows that were no longer performing properly.

To improve both efficiency and durability, we replaced them with new energy-efficient Low-E Argon windows designed for long-term performance and low maintenance.

A section of one window area was also modified to allow utility pipes to pass through solid material instead of glass, creating a safer and more secure installation.

Homeowners interested in improving basement energy efficiency can also review information from the U.S. Department of Energy window efficiency guide.

Drywall and Finish Carpentry Updates

As part of the final restoration phase, old baseboard moldings were removed from the affected drywall areas.

Our team installed new Timeless Craftsman style primed medium density fiberboard baseboards to give the basement a cleaner and more updated appearance.

These finishing touches helped complete the project while improving the overall look of the basement interior.

Final Result:

The completed project gave the homeowner in Great Neck a safer, cleaner, and more stable basement and exterior deck area.

By correcting the water management issue, stabilizing the soil beneath the deck, upgrading the basement windows, and restoring the interior finishes, the property received both structural protection and visual improvement.

At Zavza Seal, we help homeowners across Long Island and New York address water damage, structural concerns, basement issues, and long-term waterproofing solutions with practical and lasting repair methods.