Six aligned idle excavators in front of an elevated structure to be demolished
Démex has become an industry leader using innovative and creative methods to successfully meet the challenges of our projects
- Dany Tremblay, President Démex

Démex offers a wide range of services representing an integrated solution for our customers, a one-stop shop. A well-known Canadian company specialized in decommissioning, decontamination, stripping, dismantling, deconstruction, demolition, rehabilitation, recycling and revaluation of metals, Démex works in the industrial, infrastructure, institutional and commercial business segments. It is the passion of solutions that sets us apart from the competition. Always on the lookout for ingenious solutions, we have successfully met the challenges of total or selective decommissioning, whether in an operational environment, at height, in congested urban areas or in aquatic environments.

Much more than just a «demolition » company, Démex offers an integrated solution to its customers:

  • Decommissioning;
  • Decontamination (asbestos, lead, PCBs, etc.);
  • Stripping;
  • Dismantling;
  • Deconstruction;
  • Demolition;
  • Rehabilitation;
  • Recycling;
  • Civil Engineering;
  • Sale of used and functional equipment;
  • Consulting services.


Our reputation comes from the recognition of our Canadian customers for the professional services of our dedicated employees, the efficiency of our site teams, the ingenuity and innovation of our methodologies, our large fleet of modern and constantly maintained equipment according to the rules of the art as well as our constant concern for the safety and health of our workers, the public, the environment and existing assets that must remain.


The more complex the mandate, the more it corresponds to the passion of our team to take up challenges, whether in heights, in aquatic environments, confined spaces or in congested urban environments. We face all sorts of challenges, sometimes seen as impossible to overcome by others, productively, not by working harder, but by being creative, organized and effective.


We offer our services across Canada, in Newfoundland and Labrador, Prince Edward Island, Nova Scotia, New Brunswick, Quebec, Ontario, Nunavut, Manitoba, Saskatchewan, Alberta, British Columbia, the Northwest Territories and the Yukon.