Démex continually strives to deliver quality services to its clients. With the objective and established corporate culture to meet and exceed the expectations of our clients and all regulations, Démex has systems and programs in place for continuous improvement.


A professional contractor registered in good standing with the Régie des bâtiments du Québec, CNESST and the AMP, Démex is also certified ISO 9001: 2015.

To ensure that Démex meets the pre-qualification criteria of its clients, we are also registered with Avetta, Cognibox, ISN World, Aconex and Nimbi.

Démex is a member of several associations, including the Regroupement des récupérateurs et recycleurs de matériaux de construction et démolition du Québec (3RMCDQ), the Construction Association of Quebec (ACQ), the Association of Road Builders and major works of the Quebec (ACGRTQ) and the Quebec Association of Construction and Housing Professionals (APCHA).

In order to ensure the health and safety of our employees and the public, as well as compliance with all applicable laws and standards, Démex constantly strives to promote and implement its following programs and policies:

  • Quality Policy
  • General Prevention and Risk Analysis Program
  • Environmental Management Program
  • Anti-harassment Policy
  • Workplace Drugs and Alcohol Policy


See our Quality Policy