An excavation project in mind?

Your partner in excavation for over 50 years

Specialist in excavation, in installation of septic tank, in civil engineering and in materials delivery, St-Onge Group is the reference in the Laurentians. Leader in the field of excavation since 1962. St-Onge Group offers its clients an effective service and projects with highest industry standards. Our experienced team will be there to guide you throughout your excavation project.

Our specialties

  • Excavation generale 512


    Excavation service for all residentials and commercials projects .

  • Installation septique 512

    Septic installation

    Expert advices for a septic installation or a leaching bed.

  • Livraison materiaux 512

    Material delivery

    Material delivery for any excavation or construction project.

  • Genie civil 512

    Civil engineering

    Civil engineering experts for projects such as roads, sewers, waterworks, etc.

We are equipped to carry out any excavation projects


Hydraulic shovels and excavators


10 and 12-wheel trucks


Dozers, loaders and graders


Highly qualified employees


  • Affability and minitious work are the trademarks of all the staff of St-Onge Group. The customer satisfaction is assured! Raymond Beaudelot, Domaine Lamoureux at St-Hippolyte
  • It was a first experience for me with St-Onge Group. They gave me good advice. Service was excellent and the bid was respected! Very satisfied! Érik Lavoie, Prévost
  • For three years now, we are proud of working with St-Onge Group.       For all the work related to the excavation, we do not hesitate to refer this company established in our area since many years. Érik Lavoie, Prévost

Our partners