Protecting Commercial Assets: Grimsby Concrete Leveling Solution

Challenge

The exterior sidewalks and patio of a high-traffic commercial restaurant in Grimsby had experienced significant settlement of multiple concrete panels. Analysis indicated that repeated freeze-thaw cycles, combined with sustained pedestrian load, had eroded and weakened the underlying sub-base. Several slabs were severely sunken, creating uneven surfaces and critical trip hazards. Traditional replacement methods would have required extensive demolition, new concrete pours, and curing time—resulting in significant operational downtime and disruption to restaurant activities.

Solution

The project utilized a polyurethane injection system (PolyLevel®) to lift and stabilize the affected slabs. Each slab was first assessed to determine the size of voids and the lifting requirements. Small-diameter holes were then drilled strategically to allow access for the high-density polymer, which was injected beneath the concrete. As the polymer expanded, it filled voids and applied controlled upward pressure, gradually raising the slabs to achieve precise level alignment. The method allowed for careful, uniform lifting of each panel without damaging the surrounding surfaces, and the polymer cured rapidly to provide structural support.

All sunken slabs were restored to a safe, level surface, eliminating trip hazards and restoring full pedestrian accessibility within hours of completion. The approach avoided the need for demolition, replacement concrete, and extended downtime, allowing the restaurant to continue normal operations. The high-density polymer provided long-term stabilization, significantly reducing the risk of future settlement and maintaining the professional appearance and safety of the facility.