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Groupe GZ Groupe GZExcavation & drainage

Territory

Greater Montreal, North Shore
and Lanaudiere

Our crew and equipment are based on the North Shore. We cover the island of Montreal, Laval and the entire north crown, with regular travel into neighbouring areas.

Lanaudiere

Our home base

This is where we work most often: a lot of homes built between 1970 and 1990 whose drains are reaching end of life, on clay soils that move with the frost.

  • Repentigny
  • Terrebonne
  • Mascouche
  • L’Assomption
  • Le Gardeur
  • Charlemagne
  • Lachenaie
  • La Plaine
  • Saint-Sulpice
  • Joliette
  • Lavaltrie
  • Saint-Charles-Borromee

North Shore

North crown of Montreal

A fast-growing area, with plenty of landscaping and basement finishing projects.

  • Blainville
  • Boisbriand
  • Rosemere
  • Sainte-Therese
  • Lorraine
  • Bois-des-Filion
  • Sainte-Anne-des-Plaines
  • Mirabel
  • Saint-Jerome
  • Saint-Eustache
  • Deux-Montagnes
  • Saint-Sauveur

Montreal and Laval

The island and Laval

Narrow lots, restricted access, close neighbours: we’re equipped with compact machinery for dense urban work.

  • Laval (all sectors)
  • Montreal-Nord
  • Riviere-des-Prairies
  • Pointe-aux-Trembles
  • Anjou
  • Saint-Leonard
  • Rosemont
  • Ahuntsic-Cartierville
  • Villeray
  • Mercier
  • Saint-Laurent
  • Ile-Bizard
Your town isn’t listed?

This list covers where we work most often, not our limits. For a complete project — French drain, landscaping or a combination of services — we travel further. Call us at 514 553-7115; the answer is free.

What we see in the field

Every area has its own problems

01

North Shore clay soils

Clay holds water and swells. A poorly filtered drain clogs quickly there, and foundations take significant lateral pressure. We adapt stone size and geotextile accordingly.

02

Older east-end Montreal neighbourhoods

Stone or block foundations, original clay drains, lots with no clearance. We use compact machinery and sometimes hand excavation on critical sections.

03

Newer north-crown developments

Backfill poorly compacted at construction, differential settlement, miscalculated lot grading. Often it’s the exterior grading that has to be corrected before anything else.

04

Laval and high water table zones

When the water table sits near the footing, the drain alone isn’t enough. The sump pit and pump have to be properly sized, with backup power planned.

Next step

We come to you,
free of charge

Tell us where you are and what you’re seeing. We confirm the timeline and come take a look.

Call us Get a quote