Site Preparation &Utility Trenching
The excavation half of site servicing, backed by 20+ years of major project experience. We trench to grade, break the rock, bed the pipe run, backfill and compact, and haul the spoil away for residential, commercial, and industrial developments across Vancouver Island. Your licensed installer sets the pipe. We handle the ground.
Trenching and Excavation for Site Servicing
Trenching, rock excavation, bedding, backfill and spoil haul-off for developments throughout Victoria, Duncan, Nanaimo, and all of Vancouver Island. We open the ground your services go into.
Storm & Sewer Trenching
Trenching and excavation for storm drainage and sanitary sewer runs on residential, commercial, and multi-unit developments across Vancouver Island. Sewer and storm are unforgiving about grade, so this is precision excavation, not just digging a ditch. We cut the trench to the depth and fall your engineered drawings call for, typically 4-8 feet for sanitary and 3-6 feet for storm, hold that grade the length of the run, and shape a proper bedding base so your installer can lay pipe straight onto it. On Island sites that usually means hammering through rock, and it always means hauling the spoil off with our own trucks rather than leaving it piled on your lot. Once the pipe is in and inspected, we backfill in lifts with the right material and compact it so the surface does not settle a year later. We also excavate for catch basins, inspection chambers, drainage swales and ditching. With 20+ years of major project experience we know how much the requirements vary across the Island, from CRD standards in Victoria to regional district rules in the rural areas, and we sequence our work so the trench is open, safe and at grade when your installer and the inspector show up. The pipe itself, the municipal tie-in and the certification are done by your licensed installer. Whether it is a single lot in Saanich, a commercial property in Duncan, or a multi-lot subdivision in Nanaimo, we handle the ground so the install goes in clean and passes the first time.
- Storm drainage trenching
- Sanitary sewer excavation to grade
- Catch basin & chamber excavation
- Bedding, backfill & compaction
Water Service Trenching
Trenching from the main to the building for water service runs throughout Vancouver Island, on homes, commercial buildings and multi-unit developments. Water has to sit below frost, which on the Island means a minimum of 4 feet and deeper in the colder pockets, so the trench depth is not negotiable and neither is a clean, properly bedded base under the pipe. We cut the run, deal with the rock that Island ground reliably produces, shape the bedding, and keep the trench open and safe while your plumber or the water utility makes the connection. We hold the code-required separation from sewer and storm lines when we lay out the run, and we hand dig around existing services after locates rather than trusting a bucket near them. When a driveway or a mature tree cannot be cut, we work with your directional boring contractor and excavate the entry and exit pits. Rural properties are the same story from a well, spring or storage tank instead of a municipal main. Once the line is in, tested and signed off by your installer, we backfill in lifts and compact so the trench line does not sink. The tapping, valves, curb stops, pressure testing and certification are your licensed installer's work. Whether you are building in Langford, developing in Courtenay, or running services on a subdivision in Parksville, we get the ground open and ready.
- Trenching main to building
- Below-frost depth, held to grade
- Rock excavation & bore pits
- Backfill & compaction after testing
Dry Utility Trenching
Trenching for electrical, gas, telecommunications and fiber optic runs across Vancouver Island. A modern development needs several services in the ground at once, and the excavation has to respect all of them: correct depth for each, correct separation between them, and no bucket anywhere near a live line. We cut power service trenches from the street to the building, typically 24-30 inches with the warning tape laid in as we backfill; gas trenches to the depth and route FortisBC specifies; telecom trenches for phone, cable and internet from the street connection; and fiber runs for new developments. Where the municipality permits a shared trench, we lay it out to carry several services at once, which is the cheapest excavation you will get on a servicing job. We call BC One Call for locates before anything starts, hand dig around anything already in the ground, and leave the run marked so the as-built is accurate and the next contractor can find it. The conduit, cable, pipe and connections are pulled and terminated by BC Hydro, FortisBC, Telus, Shaw or your own contractor; we open the trench to their spec, keep it safe while they work, and backfill and compact behind them. For developers and builders in Victoria, Nanaimo, Duncan, Campbell River and throughout the Island, we handle single-lot service trenches and full subdivision runs with the same precision.
- Electrical service trenching
- Gas trenching to FortisBC spec
- Fiber optic trenching
- Shared trench layout & locates
Complete Site Preparation
End-to-end site preparation from initial clearing through final grading. Coordinated scheduling so the ground is ready when each trade arrives.
- Site clearing & grading
- Access road construction
- Erosion control measures
- Final grade certification
Commercial Site Excavation
Large-scale trenching, bulk excavation and haul-off for commercial developments, industrial parks, and multi-unit residential projects, sequenced around your trades.
- Multi-lot developments
- Industrial park trenching
- Subdivision service trenches
- Scheduling around installer & inspector
Residential Lot Excavation
Homeowner-focused excavation for single-family lots, duplexes, and small residential developments. Service trenches dug, bedded, backfilled and cleaned up.
- Single lot service trenches
- Rural service runs & rock work
- Septic system installation
- Driveway and access preparation
Site Preparation Across Vancouver Island
Site preparation, trenching and haul-off throughout the Island, with a working knowledge of local regulations and municipal standards.
Victoria & South Island
Trenching and site preparation for Victoria, Saanich, Langford, Colwood, and Greater Victoria. Familiar with CRD requirements and municipal standards.
- • Urban development trenching
- • Infill lot preparation
- • Tight-access urban excavation
Central Island
Trenching and site preparation throughout Duncan, Nanaimo, Parksville, and the central Island region. Experience on both municipal and rural service runs.
- • Mixed urban-rural service runs
- • Subdivision trenching
- • Rock excavation & hammering
North Island
Excavation and haul-off for Campbell River, Courtenay, Comox, and northern communities. Knowledgeable about north Island terrain and long service runs.
- • Rural site preparation
- • Long-run service trenching
- • Remote property access & grading
20+ Years of Major Project Experience
Over 20 years running major construction projects, with a working understanding of trenching, underground services, and how the ground work has to be sequenced.
Major Project Leadership
20+ years on large-scale excavation and infrastructure projects
Licensed & Certified
Fully licensed and insured for excavation and trenching work
Coordinated Teams
We sequence our excavation around your installers, utilities and inspectors
Island Regulations
Working knowledge of Vancouver Island municipal codes and trench requirements
Site Preparation & Utility Trenching FAQs
What part of site servicing do you actually do?
We do the excavation side. That means trenching to the depths and grades your engineer or installer specifies, rock excavation and hammering where the Island rock demands it, safe trench conditions, bedding placed and shaped, backfill and compaction in lifts once the pipe is in, hauling the spoil away with our own trucks, and site grading and erosion control. The pipe, mains, service connections and utility tie-ins are set and certified by your licensed installer or the utility itself. We open the ground, hold the trench, and close it back up properly.
What drives the cost of utility trenching in Victoria or Nanaimo?
Four things, mostly: how long the run is, how deep it has to go, how much rock is in the way, and how much spoil has to leave the site. A short service run in sandy ground is a very different job from a deep sanitary run hammered through Island bedrock with every yard trucked off. Access matters too, since tight urban lots slow production right down. We quote trenching and excavation after a site assessment, at no charge. The pipe, materials, connection fees and inspections come from your installer and your municipality, not from us.
How deep do you have to trench for sewer and water?
In BC, water lines sit at a minimum of 4 feet to stay below frost, often deeper in the colder parts of Vancouver Island. Sanitary sewer generally runs 4-8 feet depending on the elevation of the connection point and the fall needed for gravity drainage. Storm is usually 3-6 feet. The exact number comes off your engineered drawings and the municipality. We dig to the depth and grade the drawings call for, and we hold that grade so your installer is not fighting the trench.
Do you coordinate with municipalities and utility companies?
Yes. We arrange BC One Call locates before anything breaks ground, hand dig near existing services so nothing gets clipped, and schedule our excavation around the municipality and the utility crews so the trench is open and at grade when they arrive. We work alongside BC Hydro, FortisBC, Telus and Shaw crews on their service work rather than installing for them. Permits, connection approvals and inspections stay with your installer, and we make sure the trench is ready to pass them.
How long does the excavation take?
On a single residential lot the trenching and backfill is usually a few days of machine time once permits are in hand and the locates are done, split either side of your installer laying pipe and the inspection happening. Larger commercial sites and multi-lot developments run weeks rather than days depending on scope. Weather, rock and inspection scheduling all move the number, and municipal permit approval can take 2-6 weeks before anyone breaks ground. We give you a realistic schedule at the site assessment.
Can you work on rural properties without municipal connections?
Yes. On rural Vancouver Island properties the runs come off a well, spring or storage tank instead of a municipal main, and the excavation is the same work over longer distances and rougher ground. We trench for the water run, excavate for septic where your certified installer is putting a system in, and open the routes for power, gas and telecom. Rural jobs usually mean longer trenching distances, private utility arrangements and regional district approvals rather than municipal permits. We have dug plenty of them throughout Cowichan Valley, Sooke, Metchosin, and other non-municipal areas.
What's the difference between storm and sanitary sewer?
Sanitary sewer carries wastewater from toilets, sinks, showers, and appliances to treatment facilities—it must never mix with storm water. Storm sewer collects rainwater from roofs, driveways, and paved surfaces and directs it to watercourses or the ocean without treatment. These are separate systems in most Island municipalities. Both need proper grade and proper separation, which starts with how the trenches are laid out and dug. Mixing storm and sanitary is illegal and environmentally harmful. We set our trenches out to hold the separation BC plumbing and environmental codes require.
Do you handle rock excavation for underground utilities?
Yes. Vancouver Island's rocky terrain often requires rock excavation for underground services. Our modern excavators handle most rock breaking, and we coordinate rock blasting when necessary for extensive bedrock. Rocky conditions increase costs and time but are common throughout Greater Victoria, Highlands, Metchosin, and many Island locations. We provide realistic cost estimates after assessing soil conditions and adapt our approach based on what we encounter during excavation. Our experience with Island geology ensures efficient rock removal.
Are you licensed for excavation and trenching work?
Yes. Ronin Earthworks is fully licensed and insured for excavation, trenching and hauling. We carry comprehensive liability insurance and comply with WorkSafeBC requirements, including trench safety. Our 20+ years of major project experience covers large-scale infrastructure, commercial developments and subdivisions. We work to the engineered drawings and municipal standards for the site, and we work alongside the licensed installer who is responsible for the pipe and the connections.
Can you service sloped or difficult terrain properties?
Yes. Vancouver Island has challenging topography and difficult sites are where we do our best work. Slopes need careful planning to hold drainage grades, erosion control during and after excavation, and real thought about access on a hillside. We have dug throughout the hilly areas of Saanich, Highlands, Langford and other tough Island locations. Our equipment and operators handle steep, rocky and tight-access ground that some contractors will not touch.
Ready to Get Your Site Opened Up?
Contact Ronin Earthworks for site preparation and utility trenching on Vancouver Island. Trenching to grade, rock excavation, bedding, backfill and spoil haul-off.