Price of a water line trench to a detached garage in Oromocto?

Water Line Trench to a Detached Garage in Oromocto

Few published New Brunswick prices exist for trenching specifically, so machine time is the best-published figure: a mini excavator with operator runs $65 to $150 per hour, and a standard excavator with operator runs $150 to $250 per hour, based on published price guides read in September 2026. The quote builds from hours plus trucking and material.

Several things move the total. Rock in the trench line may need a hydraulic breaker, priced at $200 to $300 per hour, and that is separate from the excavator rate. The distance from the house to the garage matters, as does whether the trench crosses a driveway, a concrete pad or landscaping that has to be cut and restored. Depth affects time; ask what depth the quote assumes and who set it. Spoil has to go somewhere, so ask whether haul-away is included or whether the excavated material stays on site for backfill. Backfill compaction and surface restoration are worth confirming too.

For locates, the contractor has a duty under WorkSafeNB's General Regulation 91-191 to determine the location of underground utilities before digging. Ask the contractor to show you both locate tickets before the machine starts: one from Info-Excavation, requested at least three working days ahead through Click Before You Dig, and one from NB Power, requested at least five business days ahead through NB Power's own separate service. NB Power's locate is valid for 60 days from the date on the locate form and covers only NB Power-owned lines. Any private lines, such as wiring run to the garage by a previous owner, are yours to find and mark. If you are unsure what is buried between the house and the garage, raise that with the contractor before work starts.

On permits, the Town of Oromocto's Planning and Compliance office issues building permits and does site inspections. Whether a water line connection to a detached garage triggers a permit in Oromocto is something to confirm directly with that office before work begins. If the trench runs within 30 metres of a watercourse or wetland, a Watercourse and Wetland Alteration permit from the province is required before any digging, clearing or machine work starts. That 30 metres is measured horizontally from the top of the bank on the ground, not from a map.

Before the quote is signed, ask the contractor how rock is priced if it is encountered mid-trench, because a fixed-price quote that is silent on rock can become a dispute once the machine hits it.

Start with the Town of Oromocto's Planning and Compliance office to confirm what permits apply to your job, then request your locates, because those two steps set the conditions every contractor will need to price the work accurately.