Last updated: June 2026.
Foundation repair methods at a glance
| Method | What it fixes | Typical cost (CAD) | Best for |
|---|---|---|---|
| Polyurethane crack injection | Leaking, stable cracks | ~$500 to $1,500 per crack | Water, not movement |
| Helical / screw piles | Settlement; stabilize + lift | $300 to $700 per pile (10 to 30) | Sinking, sloping foundations |
| Push / resistance piers | Settlement using home's weight | Project-dependent | Heavy structures, certain soils |
| Underpinning (overall) | Strengthen + deepen foundation | $24,000 to $60,000+ | Major settlement |
| Carbon fiber straps | Mild to moderate bowing | Moderate range | Walls bowing under clay pressure |
| Steel beams / wall anchors | Moderate to severe bowing | Moderate to major | Leaning, cracked walls |
| Basement waterproofing / weeping tile | Water and moisture control | $2,200 to $8,100 (with drainage) | Wet basements, prevention |
Crack injection vs piering, which do I need?
Crack injection is right when you have a leaking but stable crack; piering is right when the foundation is actively settling. Injection seals water out. Piering stops the soil movement causing the crack. In gumbo clay, injecting a crack that is still moving just buys time, so the cause matters more than the symptom.
Helical piles vs underpinning, what is the difference?
Helical piles are one method of underpinning. "Underpinning" is the broad process of strengthening and deepening a foundation; helical piles are the screw piles often used to do it, at about $300 to $700 each. So it is not really one versus the other; helical piles are usually how underpinning gets done in Regina.
Wall anchors vs carbon fiber for bowing walls
Carbon fiber straps suit mild to moderate bowing and stop further inward movement. Wall anchors (tiebacks set in stable soil outside) and steel I-beams handle heavier pressure and can sometimes straighten a wall over time. The choice depends on how far the wall has moved and what is outside it.
Which method is best for Regina's gumbo clay?
There is no single best method, only the right method for your problem. The reason cheap surface patches fail here is that they do not reach below the 6 ft frost line where the clay stops moving. Any lasting structural fix in Regina has to account for that, which is why engineered piles dominate serious repairs. Read the Regina gumbo guide.
Call (639) 739-7288 for a free on-site assessment.