Case Study: Concrete Leveling & Void Filling Using Mudjacking in Brooklyn, NY

Case Study: Concrete Leveling & Void Filling Using Mudjacking in Brooklyn, NY

Client: Residential Property Owner
Location: Brooklyn, NY
Service Provided: Mudjacking Concrete Lifting
Project Type: Walkway & Driveway Concrete Slab Stabilization


Project Overview

The Mudjacking Concrete was contacted by a homeowner in Brooklyn, NY, facing ongoing issues with uneven concrete slabs and sinking walkways caused by improper water drainage. The problem areas included multiple concrete flags in the driveway, a sidewalk near the street, and two large slabs in the backyard. Our inspection revealed that the original drainage system was flawed, causing water accumulation beneath the concrete surfaces. Over time, this led to soil erosion, voids under the slabs, and concrete settlement.

Client Concerns

  • Uneven walkways posing trip hazards
  • Concrete slabs visibly sinking or settling
  • Improper drainage slope directing water toward the center of the walkway
  • Drainage pipe protruding above the catchment level, making it non-functional
  • Long-term water exposure weakening the soil base

The Mudjacking Contractors Observation & Analysis

  • The concrete flags were intentionally sloped toward the center to drain water. However, the drainage grill was improperly installed, not level with the concrete, making it ineffective.
  • The drainage pipe extended approx. 2 inches above the collection level, causing water to pool instead of flow.
  • Voids beneath the concrete slabs were identified, likely caused by prolonged water intrusion and soil displacement.

Solution: Mudjacking Concrete Lifting Method

To correct the settlement without full slab replacement, our team implemented the Mudjacking Concrete Lifting technique. This process involves injecting a specialized stone slurry grout beneath the slabs to fill voids and lift the concrete back to its original position.

✅ Area 1: Four Concrete Flags (Approx.20 Linear Feet)

  • Drilled precision holes in the concrete surface.
  • Used diamond blades to cut expansion joints.
  • Injected stone slurry grout to lift the Northwest side and fill voids.
  • Sealed and waterproofed all joints and repaired drilled holes.

✅ Area 2: One Concrete Flag Near Street (Approx. 5 Linear Feet)

  • Identified as another critical sinking slab.
  • Same mudjacking process applied to raise and stabilize the slab.
  • Special attention paid to expansion joint sealing for long-term durability.

✅ Area 3: Two Large Concrete Flags in Backyard (Approx. 258 Linear Inches)

  • Focused on the Southwest side, which showed the greatest settlement.
  • Slabs were restored to original level after complete void filling.
  • Final step included joint waterproofing and clean surface finishing.

Limitations Noted

Our team restored the concrete slabs to their original level, but we issued a formal disclaimer regarding the existing drainage system, as it was inherently flawed due to poor design and improper installation. The system’s functionality remains compromised despite the concrete leveling.

Final Results

  • Walkways and driveway surfaces were fully restored to safe, level conditions.
  • Void areas under slabs completely filled, providing long-term structural stability.
  • Clients now enjoy improved safety, aesthetic appeal, and functionality of the exterior surfaces.
SUNKEN CONCRETE

Why Choose Us for Mudjacking in Brooklyn?

At The Mudjacking Contractor, we specialize in non-invasive concrete repair solutions like mudjacking and void filling that extend the life of existing surfaces without costly replacements. Our team brings unmatched expertise in diagnosing drainage-related slab issues, especially in urban environments like Brooklyn, NY.


Get in Touch

Do you have sinking concrete on your driveway or patio in Brooklyn or anywhere across Long Island and Queens? Call The Mudjacking Contractor today for a free inspection and find out how mudjacking can save you money and restore safety to your property.

📞 (631) 980-1800
🌐 https://mudjackingcontractor.com/

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