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Groupe GZ Groupe GZExcavation & drainage

Service 02

Selective and
complete demolition

A leaning garage, a shed past saving, a solarium to rebuild, an in-ground pool to decommission, an interior to strip before renovation. We demolish cleanly, sort, dispose legally — and leave a site ready for what comes next.

What we demolish

  • Secondary buildings: detached garages, sheds, solariums and shelters.
  • In-ground pools: structure dismantled, bottom punctured for drainage, backfill compacted in layers and returned to lawn.
  • Slabs, decks and foundations: concrete broken, rebar separated, hauled off site.
  • Selective interior demolition: strip-out before renovation — walls, floors and finishes removed down to clean structure.
  • Chimneys, walls and yard structures blocking a landscaping project.
Demolition is 20% breaking and 80% managing

The real work is in the prep and the haul-out: cutting services at the right point, protecting what stays, sorting wood, metal, concrete and drywall, then disposing of each stream at the right place. That’s what separates a clean job site from a debris pile that sits for three weeks.

Our method

  1. Visit and verifications. Structure condition, services to disconnect (gas, power, water), your municipality’s permit requirements. We tell you exactly what to request and supply the technical documents.
  2. Preparation. Service cut-offs confirmed, neighbouring surfaces and buildings protected, site fencing when needed.
  3. Controlled demolition. Mechanized with a hydraulic-thumb excavator, or by hand for selective work. Water misting to control dust.
  4. Sorting and disposal. Metal and concrete recovered, wood and mixed debris to authorized sites. Weigh slips available on request.
  5. Site handover. Backfill compacted where a structure was removed, final grading, site cleaned. Ready to build or landscape.

And after the demolition?

Most of our clients move straight into the next phase — and that’s exactly our strength: the same crew handles the excavation for the new foundation or the earthworks on the cleared lot. One contractor, one responsibility, no delay between steps.

Frequently asked

Do I need a permit to demolish?
Almost always, yes — even for a detached garage. Every municipality has its own rules. We check yours, tell you exactly what to request and supply the required technical documents.
What about asbestos or vermiculite?
If the building predates the 1990s, we recommend testing before demolition. Asbestos removal is regulated work requiring a certified crew: if the test comes back positive, we connect you with accredited specialists before touching anything.
How long does a garage demolition take?
One day for the structure, often a second for the slab, sorting and haul-out. Backfill and grading follow immediately.
Do you fill in in-ground pools?
Yes, it’s a frequent request. We dismantle the structure, puncture the bottom so water never accumulates, backfill in compacted layers and finish with topsoil ready for sod. Done properly, the ground doesn’t settle.

On site

Before, during, after

Next step

That structure won’t
demolish itself

Free visit, detailed quote with sorting and disposal included. We handle the permit verifications.

Call us Get a quote