Engineered Structural Shoring & Earth Retention Systems
We deliver a comprehensive range of custom structural support and soil stabilization solutions engineered specifically for Ontario’s complex geological conditions and tight urban footprints.
Soil Retention Shoring
Engineered soldier pile and lagging, secant pile walls, and caisson walls designed to stabilize deep excavation cuts and prevent ground movement along site property lines.
Emergency Shoring
Rapid-response structural stabilization for compromised foundations, structural settlements, or sudden soil collapses to secure property boundaries and prevent structural failure.
Retaining Wall Shoring
Temporary and permanent earth retention structures built to manage sloped grades, zero-lot-line developments, and heavy lateral earth pressures during subgrade work.
Residential Shoring
Precision shoring systems tailored for urban infill builds, custom home deep basements, and tight residential additions to protect neighbouring structures and city rights-of-way.
Industrial Shoring
Heavy-duty retention systems engineered for industrial expansion, deep pit excavations, utility vaults, and heavy equipment foundation installations.
Underpinning & Tieback Anchoring
Integrated tieback systems, ground anchors, and benching solutions that enhance lateral load capacity and stabilize adjacent structures during deep digs.
Navigating Ontario’s
Shoring & Excavation Standards
Earth retention projects in Ontario demand rigorous engineering, structural integrity, and strict adherence to safety legislation to mitigate subsurface risks. Our deep technical knowledge ensures full structural compliance on every site.
01
OHSA Excavation Regulations (O. Reg. 213/91)
Under Part III of Ontario’s Construction Projects Regulation (O. Reg. 213/91), deep excavations exceeding 1.2 meters require proper shoring, trenching, or hydraulic support systems. We install fully compliant systems engineered by registered Professional Engineers of Ontario (PEO).
02
Municipal Encroachment & Tieback Agreements
Installing tiebacks or ground anchors beneath city streets, utility corridors, or neighboring properties requires formal municipal encroachment permits. We assist in coordinating geotechnical approvals, structural drawings, and municipal clearances to keep your build moving.
03
Geotechnical & Soil Condition Assessments
Ontario’s diverse soil profiles—from dense Halton Till and dense glacial clays to wet silt and sands—require site-specific retention design. We work directly with geotechnical reports to match the precise pile depth, lagging thickness, and anchoring required for local soil conditions.
Shoring & Excavation Need to Work Together
Installing structural shoring is intrinsic to a successful deep excavation. Combining continuous soil retention with bulk earthmoving ensures site boundaries remain secure while maximum sub-grade volume is cleared safely.
- Zero-Lot-Line Optimization: Modern urban infill construction leaves zero room for sloped benching. Our vertical soldier pile and lagging or caisson wall systems allow you to build right to your property boundary safely.
- Monitoring & Settlement Prevention: Continuous site monitoring, inclinometer tracking, and precision tieback tensioning protect adjacent utilities, sidewalks, and neighboring foundations throughout the construction process.
Our Step-by-Step
Shoring Process
A clear process helps keep the project on track—from the first
conversation to final site handover.
01
Tell Us About The Project
Share your architectural site plans, geotechnical reports, property surveys, and deep foundation goals.
02
Site & Geotechnical Review
We evaluate soil profiles, water table depth, load parameters from adjacent structures, and municipal encroachment needs.
03
Shoring System Design
PEO-stamped structural designs are finalized, selecting exact pile locations, lagging dimensions, and tieback anchoring depths.
04
Drilling & Execution
Steel H-piles are drilled/driven, timber lagging is installed as excavation progresses, and tiebacks are tensioned.
05
Site Handoff for Excavation
The site is fully stabilized, structurally secure, and ready for primary foundation excavation and concrete pouring.
One Site.
One Coordinated Scope.
Demolition, excavation, shoring and disposal should not feel like four unrelated jobs. Each
stage affects the next. By reviewing the wider project early, COMO can help the project
team understand how the site moves toward foundation work.
01
Existing Structure Review
Review the property, access conditions, available plans and intended construction scope.
02
Demolition and Separation
Remove the required structure or selected areas according to the agreed project scope.
03
Debris and Material Removal
Remove demolition materials, excavated soil and other site debris as required.
04
Excavation and Shoring
Progress into foundation excavation and any required shoring within COMO’s confirmed scope.
05
Site Handover
Review the completed scope and hand the property over for the next construction phase.
Experience Below Grade Matters Above Ground
Structural safety at the surface starts with total ground control, precise engineering, and unyielding earth retention below.
More Than 40 Years of Experience
Decades of specialized earth retention expertise navigating Ontario's complex soil profiles, high water tables, and tight urban footprints.
Custom Residential & Commercial Focus
Tailored retention systems built specifically for urban infill homes, zero-lot-line basements, and commercial foundation protection.
Connected Sitework Services
Integrating engineered shoring directly with excavation and demolition creates seamless site execution with zero structural friction.
PEO Engineering & Safety Standards
Fully compliant with OHSA O. Reg. 213/91, our PEO-stamped shoring installations are backed by full commercial liability and WSIB clearance.
Shoring Services Across Oakville and the Western GTA
Residential infill shoring, zero-lot-line retention, and custom home basement protection.
Soil retention systems, hillside grade stabilization, and soldier pile installations.
Commercial deep foundation shoring, caisson walls, and utility trench support.
Industrial equipment pit shoring, heavy structural tiebacks, and deep warehouse retention.
High-density urban shoring, underpinning support, and municipal encroachment management.
Have a Shoring Project Coming Up?
Bring COMO into the discussion early. We will review your geotechnical reports, guide structural requirements, and ensure your excavation is safe and compliant.
