Retaining Wall Repair in Calgary

Why retaining walls fail in Calgary

Retaining walls are under constant lateral pressure from the soil they hold back. Calgary's clay soils are particularly demanding — they expand when wet and contract when dry, cycling the wall through stress every season. Combined with frost heave pressure in winter and hydrostatic pressure during spring thaw, Calgary retaining walls face more stress than walls in most other climates.

Signs your retaining wall needs attention

• Horizontal cracking — the wall is bending under lateral load; structural concern
• Visible bowing or leaning — inward movement that will continue without intervention
• Water seeping through the wall — blocked drainage creating hidden hydrostatic pressure
• Gaps opening at the top — the wall separating from the retained soil mass
• Soil erosion at the base — footing support being undermined

Carbon fibre reinforcement: the non-invasive solution

For walls in the early stages of inward movement (less than about 1 inch of bow), carbon fibre straps bonded to the interior face distribute the lateral load and prevent further movement. Installation requires no excavation, takes one day, and the straps can be concealed by paint or drywall. This is significantly less expensive and disruptive than excavation and reconstruction.

When more intervention is needed

Walls that have moved more than 2 inches, or that are actively accelerating, may require helical tiebacks (steel anchors drilled through the wall into stable soil) or in severe cases, partial reconstruction. We assess each wall and recommend the minimum intervention necessary to achieve stability.