Project Location: Jamaica, NY
Service Provided By: Zavza Seal LLC
Project Scope: Basement Wall Restoration, Structural Foundation Repair, and Advanced Waterproofing
Project Overview
Zavza Seal LLC was engaged for a comprehensive basement waterproofing and structural repair project in Jamaica, NY, involving a 43’ x 15’ basement with a total perimeter of approximately 116 linear feet and a height of about 7 feet. The project presented critical foundation issues, including a collapsed basement wall, rotted sill plate, and the need for reinforced footing and foundation support. The work was divided into two primary zones: Work Area A (damaged wall replacement) and Work Area B (remaining perimeter stabilization), along with essential sill plate repairs.
Work Area A: Collapsed Foundation Wall – 22 Linear Feet
Challenge:
A section of the basement wall had collapsed beyond repair, posing a serious safety risk and compromising the structure’s integrity.
Zavza Seal’s Solution:
- Phased Demolition: Our team carefully demolished and disposed of the damaged wall while maintaining structural stability with phased shoring techniques to protect the adjacent exterior concrete walkway.
- New Reinforced Footing: We installed a 24” deep x 18” wide reinforced concrete footing, executed in stages to maintain support at all times.
- Cinder Block Foundation Wall: On top of the new footing, we built a waterproof cinder block foundation wall, using a proprietary waterproofing technique that ensures long-term protection—even without exterior access below grade.
Note: Our method stands out among basement waterproofing contractors in Jamaica, NY, for situations where external excavation isn’t feasible.
Work Area B: Remaining Perimeter – 94 Linear Feet
Challenge:
The rest of the foundation perimeter also required reinforcement and waterproofing, but without undermining the existing structure.
Zavza Seal’s Solution:
- Deep Excavation & Soil Tamping: Excavated sections deep enough for footing work, followed by thorough soil compaction.
- Rebar Installation: Installed #5 rebar every 15″, driven 5’ into the soil to act as structural piles, with horizontal reinforcement along the footing line.
- Footing Formwork in Phases: The footing was formed in 3-foot staggered sections, each carefully poured to prevent destabilizing the structure.
- Steel Support Posts: Temporary steel posts were installed at each midpoint to maintain structural safety.
- High-Strength Concrete Pour: We poured 4,000 PSI concrete to complete the new footing installation, ensuring a solid and durable foundation.
Sill Plate Repair: Restoring Structural Integrity
Challenge:
The basement’s sill plate was compromised due to rot and deterioration, raising concerns about its load-bearing capacity.
Zavza Seal’s Solution:
- Certified Wood Restoration: We applied GreenGuard-certified Stop-Rot wood restorer to consolidate and reinforce damaged wood sections.
- Sealing & Waterproofing: The solution was also used to seal and waterproof the sill plate, preventing the spread of cracks and future wood decay.
Benefit: Our approach to sill plate repair in Jamaica, NY, combines structural preservation with eco-friendly, long-lasting solutions.
Results & Highlights
- Rebuilt a structurally sound, waterproof foundation wall using cinder blocks and reinforced footing.
- Stabilized the entire basement perimeter while preserving the structural integrity of the home.
- Restored the rotted sill plate to a safe, load-bearing condition using certified green products.
- Delivered the project safely, efficiently, and with minimal disruption to the property.
Why Homeowners in Jamaica, NY Trust Zavza Seal LLC
At Zavza Seal, we understand the critical nature of basement structural repair and waterproofing. Whether it’s a collapsed wall, compromised foundation footing, or deteriorating wood framing, our team uses proven engineering practices and proprietary techniques tailored to each site’s unique challenges.
For expert basement waterproofing in Jamaica, NY, call Zavza Seal LLC—your trusted partner in protection and peace of mind.