Is $22,000 too much to excavate for a new home in Sussex?

A whole-house foundation dig runs $7,500 to $30,000 based on published price guides read in September 2026, so the quote you have sits in the middle of that range. It is not obviously high, but whether it is fair depends entirely on what the quote includes and what the ground turns out to be.

A few things can push a foundation dig toward the top of that range. If the contractor hits ledge or boulders, breaking rock with a hydraulic attachment runs $200 to $300 per hour on top of the digging time, and that cost can climb quickly. Haul distance matters too: spoil trucked a long way costs more than spoil dumped nearby, and whether the site has room to stockpile material changes the trucking plan. A standard excavator with operator runs $150 to $250 per hour; a mini runs $65 to $150 per hour. The machine size the job needs, the number of hours it takes, and what happens to the spoil are the three levers that set the final number.

Before the machine arrives, two separate locate requests go out. Info-Excavation, reached through Click Before You Dig, needs three working days' notice; that locate is valid until the end date written on the request. NB Power runs its own underground locate service, separate from Info-Excavation, and asks for at least five business days' notice; that locate is valid for 60 days from the date on the form and covers only NB Power-owned lines. Private lines, fuel lines and anything a past owner installed are yours to find and mark before digging starts. If the lot is within 30 metres of a watercourse or wetland, a provincial Watercourse and Wetland Alteration permit is required before any machine work begins.

For the permit side in Sussex, check with the Town of Sussex on what building and development permits are needed and how to book the footing and foundation inspection. Under Regulation 2021-2, at least one inspection must happen after the footings and foundation are complete and before any backfilling starts. WorkSafeNB's General Regulation 91-191 requires that any trench 1.2 m (about 4 ft) or deeper that workers enter be shored, sloped or benched, or cut in solid rock, and shoring must be engineer-certified.

Ask the contractor to show you both locate tickets, confirm how rock is priced if it is encountered, and ask for a WorkSafeNB clearance certificate. Under the Construction Remedies Act you must retain 10% of the contract price as a holdback for 60 days after substantial performance is certified. Ask your insurer about coverage during construction.

The line in a quote most worth reading closely is the one that says what happens if rock is found, how far the spoil travels, and who supplies the backfill material, because those three items are where an estimate and a final invoice can part ways.