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Building Your Home? It All Starts Below Your Feet.

Before the walls, before the roof, there is excavation. It’s the foundation of everything. And a well-done base helps avoid surprises for the next 50 years

Our Services For New Construction

How it Works, Step by Step.

Site Assessment

We visit your land and assess soil type, slope, drainage, and access before quoting anything.

Detailed Estimate

You know exactly what it costs before starting.

Excavation work

Right equipment, experienced crew. We work efficiently and stay on your schedule.

Final inspection

We don't leave until it's done right. Site review, cleanup, and sign-off.

Why choose A. Préfontaine?

40+ Years Experience

40+ years of experience working across the Eastern Townships with deep knowledge of local soil and site conditions.

Complete Equipment Fleet

No subcontracting needed. We own all our machinery.

Quality Guarantee

We work closely with homeowners and general contractors to ensure smooth execution from excavation to completion.

Free Submission, No Surprises

In excavation, unfortunately, we can never guarantee that there will be no surprises. It is a reality that we have to deal with on every project.

Eastern Townships & Surrounding Areas

A strong local presence to support projects of any size.

40+

Years of Experience

4.6/5

Our Google Reviews

RBQ

#2963-7220-93

Our Work Speaks For Itself

Before excavation After excavation Before After

Residential excavation project

Before site preparation After site preparation Before After

Residential site preparation

Before landscaping After landscaping Before After

Landscaping and excavation project

Frequently Asked Questions

How much does foundation excavation cost?

The cost depends on several factors, including soil conditions, foundation size, site accessibility, and project scope. We provide free estimates to help you accurately plan your construction budget.


Most standard residential foundation excavations are completed within a few days, depending on site conditions and weather. Timelines may vary for larger or more complex projects.

Yes. We handle the complete process, including excavation, septic tank installation, connections, grading, and backfilling to ensure the system is fully ready for use.

Are You a General Contractor?

We’re the reliable subcontracting partner you’re looking for. Excavation, earthwork, civil engineering let’s talk about your next project.

Get in Touch

We're Here! Tell us About Your Project.

Contact us today for a free consultation and quote!