When Concrete Settles
Settled concrete isn't just an eyesore — it creates trip hazards, directs water toward your foundation, and signals soil instability beneath the slab. In Edmonton, concrete settlement is extremely common due to our soil conditions and climate. Voids form beneath slabs as soil erodes, compresses, or washes away, and the heavy concrete follows gravity downward.
Common Causes in Edmonton
- Poorly compacted fill soil beneath the slab settling over time
- Erosion from water runoff washing soil out from under concrete
- Freeze-thaw cycles creating frost heave and soil displacement
- Tree root decay leaving voids beneath slabs
- Plumbing leaks eroding subgrade soil material
- Natural soil consolidation in clay-heavy Edmonton soils
Concrete Lifting Methods
Polyurethane Foam Injection
High-density polyurethane foam is injected through small holes drilled in the slab. The foam expands to fill voids, compact loose soil, and lift the concrete back to level. Holes are patched and the slab is usable within hours.
Deep Injection Stabilization
For slabs with deep void issues, multi-level injection targets specific depths to stabilize the entire soil column beneath the concrete, not just the immediate sub-surface.
Joint & Crack Sealing
After lifting, control joints and cracks are sealed to prevent water from re-entering the sub-base and causing future settlement. This extends the life of the repair significantly.
Slab Replacement
When concrete is severely deteriorated, crumbled, or broken beyond practical repair, we provide complete slab removal and replacement with proper sub-base preparation.
Why This Matters
Settled concrete creates liability. Trip hazards on sidewalks and driveways can result in injuries and insurance claims. Sloped concrete directs water toward your foundation, compounding moisture problems. Garage floor settlement can damage vehicles and make the space unusable. Concrete lifting restores functionality at a fraction of full replacement cost — typically 50–70% less.
