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Groupe GZ Groupe GZExcavation & drainage

Service 01

Residential and
commercial excavation

Foundations, trenches, drains, connections and tight-access lots. Our compact machinery fits where the big excavators don’t — and our crew backfills properly, in compacted layers.

What we excavate

  • Foundation perimeters for French drains, waterproofing or crack repair, down to the bottom of the footing.
  • Utility trenches — sewer, water, electrical, culverts — with Info-Excavation locates before every bucket stroke.
  • Additions and garages: mass excavation, subgrade, compacted stone ready for formwork.
  • In-ground pools: excavation, soil management and deck preparation.
  • Tight access: city lots, narrow side yards, backyards with no street access. Compact machinery and hand digging on critical sections.
The difference is in the backfill

Anyone can dig a hole. What separates a lasting job is what happens after: compliant materials, backfill replaced in compacted layers, drainage slopes verified. That’s what determines the repair bill ten years from now.

Our method

  1. Diagnosis and surveys. Levels, access, soil type, buried services. Photos included, itemized quote.
  2. Site protection. Pavers and sod set aside, access routes protected, site fencing when needed.
  3. Controlled excavation. Depth and slopes per plan; contaminated or unstable soils flagged immediately, never quietly buried.
  4. Work at the bottom. Drain, membrane, repair, connection — per the mandate.
  5. Backfill and restoration. Compacted layers, graded ground, surfaces reinstated, site cleaned.

The specialties that go with it

Most of our perimeter excavations end with a drainage system or a foundation repair. Both specialties have their own detailed page:

Frequently asked

Do you have machinery for a city lot?
Yes. Our compact excavators fit through a standard side yard, and we finish by hand where even the compact machine can’t reach. It’s a big part of our work on the island of Montreal.
Who handles Info-Excavation and permits?
We do. Every job is filed with Info-Excavation before digging, and we obtain the municipal permits required when the work touches the public right-of-way or a sewer connection.
What happens to the excavated soil?
Clean reusable soil goes back as backfill; the surplus is hauled to authorized sites. If contamination is suspected, we tell you immediately and point you to the required characterization.

On site

Excavation job sites

Next step

We come look,
and we tell you straight

If the project can be done more simply than expected, we’ll say so. Otherwise you get an itemized quote where every line is explained.

Call us Get a quote