Union Associations
In Québec, the labour relations system in the construction industry, governed by the Act Respecting Labour Relations, Vocational Training, and Workforce Management in the Construction Industry (Act R-20) recognizes union pluralism. The aim of the union associations is to analyze, promote, and develop their members’ economic, social, and educational interests.
When they enter the industry, workers are obliged to choose the union association that they want to join. They have the option of changing associations, during a union vote.
Here are the five union associations recognized under Act R-20 and their union representativeness as of the last union vote:
| Representative association | 2024 Official representativeness |
| Centrale des syndicats démocratiques (CSD CONSTRUCTION) | 7.552% |
| Confédération des syndicats nationaux (CSN-CONSTRUCTION) | 5.978% |
| Conseil provincial du Québec des métiers de la construction (International) |
20.698% |
| Fédération des travailleurs et travailleuses du Québec (FTQ-Construction) | 44.069% |
| Syndicat québécois de la construction (SQC) | 21.703% |
The union representativeness of the different associations determines the relative strength of each one when it is time to ratify the collective agreements that result from the negotiations following the vote.
See detailed results by trade/occupation and region for the last union vote (in French only).