Excavation, Grading & Construction Contractor in Toronto, ON

Toronto excavation is its own discipline. Lots are narrow, neighbours are close, by-law enforcement is strict, and there’s almost never an easy place to park a 20-yard bin. OCM Excavation & Construction works city-wide — Etobicoke, North York, Scarborough, East York, and the old City of Toronto core. We bring narrow-track mini-excavators for downtown semis and full-size machines for North York and Etobicoke bungalow basement digs. Our crews are used to laneway access, neighbour notification, and tight bin-permit windows.

Services We Provide in Toronto

Most-Requested Services

  • Excavation & Site Preparation — basement digs, pool excavations, foundation hole excavation with mini-ex and full-size machines.
  • Land Grading & Yard Levelling — laser-guided grading for proper drainage away from foundations, sloped lots, new sod prep.
  • Trenching & Post Drilling — water-line, gas-line and electrical trenching, deck-post and fence-post holes.
  • Deck Building — pressure-treated, cedar and composite decks, with footings poured to Ontario Building Code 2024 depth.
  • Fence Installation — wood privacy, chain-link, composite and aluminum fences, fully respecting municipal setback bylaws.
  • Walk-Up Basement Entrances — full underpinning, structural steel lintels, concrete stairs and waterproofed walls.

Specialty & Add-On Services

  • Septic System Installation & Repair — particularly useful for rural lots without municipal sewer connection.
  • Retaining Walls — engineered segmental block, armour-stone and poured concrete walls for sloped properties.
  • Interlocking Pavers — driveways, walkways, patios with polymeric jointing and proper base preparation.
  • Foundation Waterproofing — exterior dig-down membrane application, weeping-tile replacement and sump-pit installation.
  • Yard Cleaning & Debris Removal — full lot clean-outs, post-construction haul-away and tree-stump removal.

Why Toronto Homeowners Choose OCM

  • Comfortable with the City of Toronto’s stricter Right-of-Way permits — bin, hoarding, and lane-occupancy applications handled for you.
  • Mini-excavator fleet sized for downtown semis and Trinity-Bellwoods rear-yard laneway-house digs.
  • Familiar with North York / Etobicoke ravine and natural-feature setbacks — we won’t quote a job we can’t legally execute.
  • WSIB-certified, fully insured, written quote within 24 hours, and one foreman from quote to completion.
  • Years of references from homeowners in Leaside, Bloor West Village, Willowdale, Bedford Park, Don Mills and the Beach.

Local Knowledge: Toronto Permits & Conditions

Site Alteration & Lot Grading Bylaw

Toronto enforces a site-alteration and lot-grading bylaw on most residential lots. Before any major dig, regrade or fill import we file the lot-grading plan with the Toronto building department and book the pre-pour and final-grade inspections so your deposit gets released on schedule.

Tree Preservation & Protection

Toronto protects mature trees on private and boulevard lots. We assess the tree-protection zone before mobilising, install snow-fence hoarding where required, and coordinate with the city arborist on any work inside the drip line so you avoid surprise stop-work orders mid-dig.

Conservation Authority Setbacks

Lots near rivers, ravines or wetlands in Toronto fall inside the Toronto and Region Conservation Authority (TRCA) regulated area. We flag this on the quote, prepare the permit package and engineering letters, and stage the dig so the inspector signs off the first time — no two-week resubmission delays.

City of Toronto permits flow through Toronto City Hall at 100 Queen Street West, with district offices in Etobicoke, North York and Scarborough handling intake for those quadrants. Excavation and grading work is reviewed under the Ontario Building Code 2024 plus the City of Toronto’s own Site Plan Control and Tree Protection regimes. Toronto’s Private Tree By-law (Chapter 813, Article III) protects any tree on private property with a diameter of 30 cm or greater — any excavation inside the critical root zone triggers a separate Urban Forestry permit, which can add weeks if it’s spotted late. OCM checks for protected trees during the on-site quote so the timeline is honest.

Soil and access vary dramatically by quadrant: Etobicoke (Mimico, Long Branch, Alderwood) often has sandy lake-deposited soils and shallow water tables near the lakeshore; North York (Willowdale, Bayview Village, Bedford Park) is typically dense clay till with occasional buried boulders from glacial action; Scarborough (Cliffside, Birch Cliff, Agincourt) has stable clays inland but bluff-edge restrictions near the lake; East York and Old Toronto add the complication of 100-year-old fieldstone foundations, lead water-line replacements, and rear-laneway access only. Many ravine-adjacent properties fall inside the Toronto and Region Conservation Authority (TRCA) regulated area — we handle the permit application for you. Typical Toronto projects for OCM: walk-up basement entrances on Leslieville and Riverdale semis, full lowering / underpinning prep in North York bungalows, rear-yard interlocking and waterproofing in Etobicoke, and laneway-suite excavations across the old city.

Areas Near Toronto We Also Serve

Toronto Project Inquiries — Free Quote

Ready to break ground on your Toronto project? Call OCM Excavation & Construction at 416-317-3090 for a free on-site quote within 24 hours, or use our online quote form. OCM is WSIB-certified, fully insured, and has served Toronto homeowners and contractors since 2018.

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Toronto Excavation FAQ

Do I need a permit to excavate in Toronto?

Yes for most digs. Toronto requires a building permit any time you excavate deeper than 1.2 m for footings, a pool, a walk-up basement or an addition — applications go through Toronto Building (City of Toronto). Site-alteration and lot-grading bylaws also apply: most new builds and major regrades require a grading certificate signed by an Ontario Land Surveyor or P.Eng before the city releases your deposit. OCM files the permit, books the inspections and coordinates with Toronto and Region Conservation Authority (TRCA) when your lot is inside a regulated area.

How much does excavation cost in Toronto in 2026?

Most Toronto residential excavation jobs land between $3,500 and $25,000, depending on volume and access. A 16×32 pool dig is typically $9,000–$14,000; a foundation hole for a 2-storey addition runs $6,500–$12,000; a single-side walk-up basement runs $14,000–$24,000 with shoring. Costs rise with deeper digs, tight rear-yard access requiring a smaller machine, hauling soil offsite, or hitting groundwater. Every OCM quote is itemised: machine time, trucking, disposal, permit fees and restoration — call 416-317-3090 for a free site visit.

How long does a typical residential excavation take in Toronto?

Most Toronto residential digs finish in 1–5 working days on site. A standard 30×50 foundation hole is usually 1–2 days of machine time. A rear-yard pool excavation is 2–3 days including soil haul-away. Walk-up basement entrances take 4–7 days because of underpinning, structural steel and concrete pouring. The full project clock is longer because of permitting (2–6 weeks) and Toronto and Region Conservation Authority (TRCA) review when applicable. OCM books a site visit within 48 hours and gives you a written start-to-finish schedule before any dig begins.

What soil conditions are common in Toronto and how do they affect cost?

Toronto soil varies block to block. Older neighbourhoods like North York often sit on dense clay till with seasonal high water tables — that means trench-box shoring past 1.5 m and slower digging. Newer subdivisions like Etobicoke are often built on engineered fill that's looser but mixed with debris. Lots near rivers, ravines or the Toronto and Region Conservation Authority (TRCA) regulated area can hit groundwater that needs a dewatering pump on site. OCM's site visit always includes a hand-dig test pit so the quote reflects real soil — no surprise change orders mid-project.

Do you serve North York, Etobicoke, Scarborough, Bedford Park, Leslieville?

Yes — OCM Excavation works across all Toronto neighbourhoods including North York, Etobicoke, Scarborough, Bedford Park, Leslieville. We dispatch from our yard in the GTA and arrive same-week for most quotes. We handle the full job: permit application at Toronto Building (City of Toronto), Toronto and Region Conservation Authority (TRCA) review if your lot is regulated, machine and operator, soil haul-away, and final restoration. Same crew, same project manager, start to finish. Tell us the postal code and we'll have a written quote in your inbox within 48 hours. Call 416-317-3090 or request a quote online.

Does OCM handle emergency or same-week excavation in Toronto?

Yes — for true emergencies (collapsed retaining wall, foundation leak, sewer-line failure, sinkhole) we mobilise within 24–48 hours in Toronto. Same-week starts are routine for non-emergency jobs when permits are already in hand. We carry full $5M commercial liability and WSIB coverage so insurance adjusters and homeowners can sign off without delay. For ongoing damage, call 416-317-3090 and ask for the emergency line — a project manager will be on site the same day with a hand-dig assessment and a written stabilisation plan.

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