Polyurethane Injection Technology

Curled Slab Repair with Polyurethane Slabjacking

Serving the New England Region with rapid, cost-effective solutions for settling and uneven concrete

Curled Slab Repair with Polyurethane Injection Technology

Concrete curling can cause major serviceability issues in warehouses, factories, and commercial buildings. Over time, edges of concrete slabs lift due to uneven drying, temperature differences, or subbase problems — leading to unsafe transitions, joint damage, and potential tripping hazards.

At Engineered Foundation Technologies (EFT), we specialize in polyurethane injection for curled slab repair across Massachusetts and New Hampshire. Our process stabilizes subfloor voids, restores surface flatness, and minimizes downtime for operating facilities.

Precision Matters

Once the void space is filled with high-performance polyurethane, EFT technicians fine-tune the surface profile. Any remaining unevenness is corrected with high-strength mortar, ensuring a level, durable floor that meets industrial performance standards.

Common Problems Caused by Curled Concrete Slabs

Uneven and Raised Slab Edges

Differential drying or curing conditions can cause the edges of a concrete slab to lift upward. This unevenness creates hazardous transitions and can lead to damage at control joints or slab intersections.

Joint Spalling and Cracking

Unsupported slab edges often result in cracked or broken joints under forklift or vehicle traffic. Over time, this deterioration worsens, creating unsafe and costly maintenance conditions.

Disrupted Operations and Equipment Wear

Uneven floors can impact warehouse traffic, damage equipment wheels, and slow down daily operations — particularly in facilities using precision material-handling systems.

Advantages of EFT’s Polyurethane Curled Slab Repair

Minimally Invasive Process

Polyurethane foam injection requires only small access points and can be performed without removing machinery or shutting down your facility.

Precision-Leveling Technology

EFT uses fast-reacting polyurethane designed for controlled expansion. This allows for exact lifting and stabilization of the curled slab edges, restoring smooth, level transitions.

Rapid Return to Service

Most projects are completed in hours, not days. Once injected, the material cures quickly — floors can often be returned to use within minutes.

Durable, Long-Term Solution

The cured foam forms a dense, stable base that prevents future settlement or curling, ensuring long-lasting performance and cost savings over slab replacement.

Massachusetts Slab curling can severely disrupt the serviceability of a concrete slab. Curled concrete slabs slow down forklift traffic. Polyurethane slabjacking can easily repair the warped concrete.

The first step is to fill the underslab void created from the curling. Polyurethane foam effectively can fill the void without disrupting existing business operations in New Hampshire.

Once the void space has been filled with polyurethane, topical unevenness is addressed if required. The slab surface can be repaired by removing portions of the curled slab and replacing it with a high strength mortar.

Why Choose EFT for Curled Slab Repair

Serving Massachusetts and New Hampshire since 2005
Experts in polyurethane injection and joint stabilization
Work completed with minimal disruption to ongoing operations
Licensed, insured, and experienced in geotechnical construction
Environmentally friendly materials and sustainable methods

Testimonials

Fast and Professional Curl Repair

"Our warehouse floors had curled joints that were damaging forklift tires. EFT came in and leveled the edges perfectly without interrupting our production. The results were immediate and flawless."

Sarah - Operations Manager, Nashua, NH

Minimal Downtime, Great Results

"We needed our loading bay floor fixed quickly. EFT’s team completed the polyurethane injection in one morning, and the space was back in service by that afternoon. Highly recommended!"

Tom - Facilities Director, Haverhill, MA

Professional, Honest, and Technically Skilled

"As a property manager, I’ve worked with a lot of contractors. EFT stood out for their knowledge and professionalism. They used polyurethane injection to lift a section of our warehouse floor that had settled over time — the results were flawless and immediate."

David - Facility Manager, Nashua, NH