The Alliance syndicale de la construction, the umbrella organization for the industry’s five unions, has called a strike in the residential sector starting May 28, 2025, at 0:01 a.m.

The Act respecting labour relations, vocational training and workforce management in the construction industry (Act R-20) continues to apply even during a labour dispute in one or more of the industry’s sectors.

When one of the parties exercises its right to hold a strike or a lock-out, in compliance with Act R-20, workers may go on strike or continue to work, and employers may close their sites or continue their activities.

The obligation for workers to hold a competency certificate and for employers to hold a licence issued by the Régie du bâtiment du Québec (RBQ) remains in force.

To find out more, consult the section “Obligations et conditions applicables lors d’un conflit de travail sur les chantiers.” 

Have you been a victim of or witness to intimidation during a labour dispute? Are people blocking access to a construction site? Report the situation now!