Our FAQ

Your Questions About Excavation and Our Other Services


Are you planning excavation, grading, or septic installation work in the Upper Laurentians? We answer the most frequently asked questions to help you make informed decisions.

  • How Much Does Foundation Excavation Cost?

    The cost of foundation excavation varies depending on the area, required depth, site accessibility, and soil type. Every project is unique and requires an on-site assessment.


    At DanAm Excavation Inc., we offer detailed, free quotes. We assess your site to provide a precise estimate based on your specific needs.


  • What’s the Lifespan of a Septic Installation?

    A well-maintained septic installation typically lasts 20 to 30 years in Quebec. Lifespan depends on the type of system, the quality of installation, and regular maintenance.


    Professional installation to code maximizes the longevity of your system. Regular pumping in accordance with regulations and proper land drainage significantly extend its durability.

  • Do I Need a Permit for Excavation Work?

    Yes, most excavation work requires a municipal permit in Quebec. This includes foundation excavation, septic installations, in-ground pools, and drainage modifications.


    We ensure all our work meets municipal requirements to avoid fines and complications.

  • What’s the Best Time of Year for Excavation Work?

    Late spring and fall are the ideal periods for excavation in the Upper Laurentians. The ground is thawed, drained, and easy to work with. Summer is also suitable, but it’s peak season.


    Plan your work several weeks in advance to secure your spot in our schedule. Book your project for next season!

  • Do You Build Concrete Foundations?

    No, we specialize in excavation for foundations, not construction. Our expertise covers precise excavation, soil preparation, French drain installation, and backfilling. This specialization allows us to deliver superior excavation quality on every project.


    We can refer you to qualified subcontractors for concrete construction.

  • How Do I Know If My French Drain Needs to Be Replaced?

    Several signs point to a failing French drain: water in the basement, mould, cracks in the foundations, or water accumulating near the house. Every system deserves an inspection.


    We offer camera inspection to precisely identify problems before undertaking any work. This assessment helps determine whether a localized repair is sufficient or whether a full replacement is necessary.

For any other questions, our team is here to help.