The Problem:

A homeowner in Flushing, NY contacted Zavza Seal after noticing cracking, crumbling mortar, and visible gaps along the front and east foundation walls of their home. The affected areas included approximately 27 linear feet of foundation wall along the north and east sides of the house, all standing about 6.3 feet tall.

Over time, water intrusion had weakened sections of the cinder block foundation, especially at the northeast corner of the home. Moisture penetration, aging materials, and freeze-thaw cycles had caused deterioration of the mortar joints and structural instability in certain blocks. If left unaddressed, the damage could have led to further water intrusion, loss of structural integrity, and costly long-term repairs.

The homeowner needed a permanent solution that would not only restore the strength of the foundation but also protect it from future water damage.

The Solution:

Zavza Seal designed and executed a comprehensive structural repair and waterproofing plan focused on long-term durability and safety.

Step 1: Structural Support and Surface Preparation

Our team first installed temporary structural supports along the entire subject area to ensure the home remained stable throughout the repair process. Once secured, we mechanically ground the foundation walls to remove loose debris, old mortar, and foreign materials. All weak and damaged sections of the wall were carefully chipped away to expose a solid bonding surface.

Step 2: Cinder Block Replacement and Structural Reinforcement

Any cinder blocks that were beyond repair were fully removed and replaced with new blocks filled with high-strength concrete. We then applied a 6,500 PSI structural repair mortar across the repaired sections. In areas requiring additional reinforcement, 4.5 oz fiberglass mesh was embedded into the mortar to strengthen the wall and prevent future cracking. A second layer of structural mortar was applied to fully encapsulate and reinforce the repair.

Step 3: Waterproofing Protection

To protect the repaired foundation from moisture intrusion, we applied a 6,000 PSI waterproofing cement over the entire subject area. This created a dense, water-resistant barrier designed to withstand hydrostatic pressure and long-term exposure to moisture.

Step 4: Facade Repointing and Sealing

At the northeast corner of the home, our team addressed visible gaps and damaged areas of the exterior facade. We repointed all compromised mortar joints, replaced deteriorated mortar, and sealed the area to eliminate water entry points. This step was critical in preventing future leaks and preserving the exterior structure.

Step 5: Final Cleanup and Completion

Once all repairs were complete, the temporary supports were safely removed. All debris was disposed of properly, and the work area was left broom clean. The foundation walls were fully restored, reinforced, and waterproofed.

The Results:

The Flushing homeowner now has a structurally sound foundation with enhanced resistance to water intrusion. The repaired walls are reinforced with high-strength materials, protected against future moisture damage, and visually restored. Most importantly, the risk of further structural deterioration has been eliminated.

Why This Matters for Homes in Flushing, NY?

Homes in Queens, especially older properties in Flushing, are highly susceptible to foundation damage due to aging materials, soil movement, and moisture exposure. Proper structural repair combined with professional waterproofing is essential to maintain the safety, value, and longevity of these homes.

Zavza Seal specializes in foundation repair and waterproofing throughout Queens, Brooklyn, and Long Island. Our team uses engineering-grade materials, proven repair methods, and meticulous workmanship to deliver permanent solutions. We do not believe in quick patches. We fix the problem at its source.