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Polyurethane Injection Technology

Sinkhole Slab Repair in the Northeast

Sinkholes can cause dangerous settlement beneath homes, warehouses, and industrial buildings. EFT uses advanced polyurethane injection technology to fill underground voids, stabilize soils, and lift affected concrete slabs—restoring safety and functionality with minimal disruption.
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Repairing Sinkholes with Polyurethane Injection

Sinkholes are often the result of poor soil compaction or improperly filled land. When voids open beneath concrete floors, they can cause rapid settlement, cracking, or collapse. These issues are especially common in areas of the Northeast where historical fill or buried debris was used during construction.

EFT’s polyurethane injection process fills hidden voids and restores slab support without excavation. By injecting expanding foam beneath the slab, the material fills cavities, compacts loose soils, and can even lift settled concrete back into place.

Why It’s a Smarter Solution

Traditional excavation and replacement can be costly, messy, and time-consuming. Polyurethane injections repair the issue from below—stabilizing the structure within hours and allowing immediate return to service.

Common Sinkhole-Related Slab Problems

Sudden Slab Settlement or Cracking

When soils collapse or erode beneath a building, the concrete slab above can drop unevenly—creating major safety and structural issues.

Void Formation Under Existing Structures

Hidden cavities beneath warehouses or residential floors often go unnoticed until visible damage appears. These voids can continue to expand if not filled properly.

Operational Disruption from Repairs

Traditional excavation work requires heavy machinery and downtime. Foam injection methods let businesses and property owners fix the issue quickly and cleanly.

Advantages of Polyurethane Sinkhole Repair

Comprehensive Void Filling

Expanding polyurethane foam fills every cavity and stabilizes surrounding soils—preventing future collapse or settlement.

Rapid Set and Return to Use

The material fully cures within minutes, allowing floors, machinery, or vehicles to resume normal operation almost immediately.

Minimal Excavation Required

Small injection ports replace large-scale digging and hauling, minimizing disruption to businesses and finished spaces.

Ideal for Occupied Structures

Repairs can be completed inside operating warehouses, retail spaces, and homes—without noise, dust, or downtime.
sinkholes can occur over existing structures
Sinkholes can occur over existing structures, allowing them to settle rapidly.

Why Choose EFT for Sinkhole Slab Repair

  • Over 20 years of experience in geotechnical and structural slab repair
  • Specialized polyurethane injection technology for void stabilization
  • Proven results in warehouses, commercial buildings, and residences
  • Repairs completed with minimal disruption or excavation
  • Licensed, insured, and locally trusted throughout New England

Testimonials

Sinkhole Under Residence Repaired Quickly

"EFT filled a deep cavity beneath our garage floor without tearing it out. The floor is stable again, and we were back to normal the same day."
Susan L., Homeowner, Worcester, MA

Commercial Facility Back in Operation

"Their team repaired a sinkhole beneath one of our production areas. We didn’t lose a single day of work—professional, fast, and reliable."
Paul, Operations Director, Portsmouth, NH