How Much Does Excavation Cost in the Comox Valley?
Excavation in the Comox Valley is priced two ways: by the hour for machine and operator, at $110 to $250 depending on machine size, or as a project range. Site preparation commonly runs $3,000 to $20,000, land clearing $3,000 to $10,000 an acre, and drainage $3,000 to $12,000 across Courtenay, Comox, and Cumberland.
Updated July 2026
An excavation quote is a priced estimate of machine time, operator time, material moved, and material disposed of, built from a site walk rather than from a square-foot rate.
Excavation is one of the few trades where the same job can honestly be quoted at double the price by two different contractors, because the ground is unknown until it is opened. What follows is what the work actually costs in the Comox Valley in 2026, what drives the spread, and which numbers are worth treating as firm.
For what these numbers buy on a specific property, start with site preparation.
| Work | Typical range | Priced by | What moves it most |
|---|---|---|---|
| Site preparation & lot grading | $3,000 – $20,000 | Project | Lot size, cut-to-fill balance, imported structural fill |
| Foundation excavation | $4,000 – $15,000 | Project | Depth, soil type, groundwater, machine access |
| Land clearing | $3,000 – $10,000+ per acre | Per acre | Stem density, stump size, slash disposal distance |
| Driveway & access build | $3,000 – $12,000 | Project | Length, culvert size, imported granular base |
| Perimeter drainage | $3,000 – $12,000 | Project | Trench length, depth, drain rock and fabric quantity |
| Utility & service trenching | $3,000 – $12,000 | Project | Run length, depth, whether spoil stays on site |
| Rock breaking (hammer work) | Quoted separately | Hourly | Volume, hardness, proximity to structures |
What actually drives the spread
Four things move an excavation quote more than anything else, and none of them are visible from the road.
Soil comes first. Quadra Sand digs fast, compacts readily, and needs no dewatering — a pad on sand sits close to the low end of every range above. Vashon till is slower, needs moisture control, and can force a weather-dependent schedule. Floodplain silt near the Courtenay, Puntledge and Tsolum rivers brings groundwater into scope, and a dewatering requirement can add more than the excavation itself.
Access is second. A machine that can drive onto the lot costs less than one that has to be floated in, and a lot with no room to stockpile forces every cubic metre of cut to leave the property.
Haul and disposal is third. Material that stays on site is free to keep and expensive to remove — bulk excavation prices in the range of $2.50 to $15.00 a cubic yard before anything is trucked anywhere. Balancing cut and fill on the same lot is the single largest saving available on most residential jobs.
Rock is fourth and the least predictable. Hammer work is quoted separately because the volume stays unknown until the ground is open.
Hourly versus fixed price
Small, well-defined work is usually quoted by the hour: a short trench, a drain repair, a stump. Machine and operator time on Vancouver Island runs $110 to $160 an hour for a mini excavator and $150 to $250 for a standard machine, and BC-wide figures for owner-operators with their own equipment span $100 to $300 depending on machine class.
Larger scopes are better quoted as a project range with the assumptions written down — machine size, estimated hours, haul volume, disposal, and what happens if the ground differs from expectation. A fixed price with no stated assumptions is not actually a fixed price; it is a number waiting for a change order.
The useful question to ask an excavation contractor is not what the price is, but what the price is based on and what changes it.
| Machine or basis | Rate with operator | Typical use |
|---|---|---|
| Mini excavator (1–3 t) | $110 – $160 / hr | Perimeter drains, tight infill lots, service trenches |
| Standard excavator (5–20 t) | $150 – $250 / hr | Site prep, foundations, driveway builds |
| Backhoe | $150 – $250 / hr | Trenching, backfill, mixed loading work |
| Owner-operator with own machine (BC range) | $100 – $300 / hr | Varies widely with machine class |
| Bulk excavation, volume basis | $2.50 – $15.00 / cubic yard | Volume-priced cut and removal |
| Lightly treed clearing | from about $1,500 per acre | Open ground, small stems, on-site chipping |
| Mobilization | Quoted per job | Distance from Courtenay, float needed for larger machines |
Ranges are planning figures for budgeting, not quotes. Excavation pricing moves with soil, access, groundwater, haul distance and disposal, and two properties on the same street can differ by a factor of two. Every figure here assumes a written scope produced after a site walk. Updated July 2026.
What a written quote should contain
A quote worth comparing names the machine class, the estimated hours or days, the volume assumed to leave the site, the disposal destination, and the exclusions. Exclusions matter more than inclusions in this trade — rock, unexpected groundwater, contaminated material, and utility conflicts are the four that show up most often.
A quote should also state who is filing the BC 1 Call locate and when. The service is free, utility members have three working days to respond, and excavation has to start within 14 calendar days of the request, so the locate sits on the critical path of any schedule.
Where approvals apply — a City of Courtenay soil deposit permit, a Ministry of Transportation and Transit access permit, an Agricultural Land Commission Notice of Intent — the quote should say whether the application is inside the price or the owner's responsibility.
Seasonal scheduling and what it costs
Excavation in the Comox Valley is not priced seasonally, but it is scheduled seasonally, and that affects what a job costs in practice. The valley takes about 1,154 mm of precipitation a year, with the bulk of it falling between October and April.
Sand-based lots through Merville and Black Creek work year-round. Till and silt lots do not — compacting saturated clay does not work, and machine traffic on wet ground creates rutting and remediation nobody quoted for. Winter work on those soils often means added cost for matting, dewatering, or simply lost days.
The practical consequence is that a till or silt site quoted in February and a sand site quoted in July can carry very different contingency, even for identical scopes.
Comparing quotes without getting caught out
Three quotes for the same excavation job will rarely describe the same work. The lowest is frequently the one that assumed the least — no imported fill, no rock, spoil staying on site, no dewatering.
A fair comparison lines up the assumptions rather than the totals. Ask each contractor what volume they assumed leaves the property, what they assumed the subgrade is, and what happens to the price if the ground turns out otherwise. Two of those three answers usually explain the entire spread.
The second thing worth checking is credentials. British Columbia has no single provincial licence for excavation contractors, so the verifiable items are WorkSafeBC coverage, commercial general liability insurance, and a BC 1 Call locate on every job.
Pages that explain what sits behind these numbers: what pad preparation involves, clearing and permit thresholds, which approvals add time and cost and where the ground changes across the valley.
Budget ranges get a project started, but only a site walk prices the actual ground. Send the property details and request a free quote with the assumptions written down.