Retaining Walls — Built Like Structural Work.
When a retaining wall is moving, cracking, or deforming, the issue is rarely cosmetic. Failure is driven by mechanics: drainage and hydrostatic pressure, surcharge loading, inadequate bearing/toe conditions, unsuitable backfill, and geometry that exceeds what the system can resist. We start with risk — then deliver a remediation path that matches the mechanism.
The fastest way to burn money is to build first and diagnose later. A structural review up front clarifies risk, scope, and whether engineering is mandatory — before excavation starts.
When You Should Treat It as Structural
Most clients reach out after noticing movement or cracking near a home, driveway, or pool. If failure would affect safety, access, or structure, treat it as structural work — not landscaping.
Visible Movement
Deformation is the signal — not the cause. Movement rarely stabilizes on its own once it begins.
- Leaning, bulging, rotation, separation
- Step cracking, shear cracking, bowing
- New change after rain / freeze-thaw cycles
High Consequence Locations
Where the wall interacts with assets, the acceptable risk margin is smaller.
- Adjacent to homes, additions, foundations
- Near pools, decks, driveways, access routes
- Property edges, tight side yards, lane constraints
Known Drivers
The usual culprits: water + load + time — especially when drainage and surcharge are involved.
- Downspouts discharging into retained zones
- Trapped drainage / blocked outlets
- Added loads from hardscape, storage, vehicles
What We Deliver
This is an assessment-first pathway for structurally significant walls. We clarify the mechanism, the constraints, and the correct remediation path — then build it properly.
Structural Reviews
Initial review clarifies risk, required scope, and whether engineering is needed before construction.
- Geometry, exposure, drainage and outlet feasibility
- Loads and surcharge zones (driveways, pools, decks)
- Repair vs rebuild vs engineering-led remediation
Repair & Remediation
Targeted remediation when the resisting system remains structurally viable and the driver can be controlled.
- Drainage restoration as a non-negotiable
- Localized rebuilds where defensible
- Scope aligned to mechanism — not cosmetics
Engineering Coordination
Work coordinated with structural engineers where height, loading, or risk requires it.
- Municipal triggers and formal requirements
- Higher retained heights / complex geometry
- Ravine, slope, and constrained access conditions
The Process (So You Don’t Guess Your Way Into Structural Work)
Our goal is to prevent rebuild surprises, permit surprises, and the most expensive failure mode: building the wrong solution with confidence.
Intake & Photos
Address/nearest intersection, height estimate, timeline of changes, clear wide + close photos.
Mechanism Review
Drainage path, surcharge, bearing/toe conditions, wall type limits, exposure and constraints.
Scope Decision
Repair vs rebuild vs engineering-led remediation, with non-negotiables defined early.
Build & Verify
Execute structural remediation with drainage and stability addressed as primary requirements.
Evidence From Real Sites
Complex sites are normal in Toronto: tight access, grade changes, water paths, adjacent structures, and ravine influence. We build for those constraints — not around ideal assumptions.
Why “Looks Fine” Is a Trap
Walls commonly fail at the drainage layer, the bearing/toe, or in the retained mass — long before the face fully collapses. If the mechanism remains, cosmetic patching delays the outcome and increases the eventual scope.
- Hydrostatic pressure builds silently until deformation accelerates
- Surcharge loads (vehicles, pools, decks) compound over time
- Once movement begins, it rarely “stops” without intervention
Permits & Regulated Areas
Retaining walls may require permits depending on height, adjacency to public access, and site conditions. In regulated areas, conservation authority review may be required. Early review clarifies what applies before construction starts — and whether engineering is mandatory due to height, loading, or municipal requirements.
Ready to start? Email photos + details to assessments@rockback.ca.
Urgent concerns or new movement? emergency@rockback.ca.
Start With a Structural Review
If you’re seeing leaning, cracking, bulging, rotation, or sudden change after rain — don’t guess. A structural review clarifies risk, defines the correct scope, and prevents expensive missteps.
Best Fit
- Walls near homes, pools, driveways, access routes
- Drainage issues, slopes, or constrained access sites
- Any wall where failure affects safety or structure
What To Send
- Address / nearest intersection
- Estimated wall height + length
- Clear photos: wide + close-up + drainage paths
Next Step
We’ll confirm fit, outline constraints, and direct you to repair vs rebuild vs engineering-led remediation.