In short…


The Groupe Pro-Sag Mécanique is a group of construction companies specializing in the design, management and construction of works in ventilation, heating, air conditioning, plumbing, industrial piping, medical gas piping, natural gas piping, refrigeration, instrumentation/control and other miscellaneous work in building mechanics. Based in Saguenay Lac St-Jean, the group carries out work throughout the province of Quebec. Whether in Montreal or Ivujivik in the far north of Quebec, nothing stops our teams of seasoned and experienced workers and managers. Driven by passion and innovation, we offer you a collaborative approach, know-how and recognized expertise.

We work in the commercial, industrial, institutional, mining and hydroelectric power stations sectors, to name a few. The group is and remains a leader in its fields of expertise, continually investing in the quality of its equipment and in the training of its staff, in order to always deliver projects to the complete satisfaction of our clients. Over the last 40 years, we have developed a wide range of services to meet the growing needs of our customers. We are always looking for solutions that maximize returns in terms of efficiency and cost.

Being ISO 9001:2015 certified, our renowned and diversified clientele benefits from our great expertise and professionalism for the quality and conformity of our work.

Our values

  • The safety of our workers is our priority. Training is continually provided to workers provided to the workers as well as the supply of adequate safety equipment so that the workers can perform their tasks in complete safety.


  • Meet the expectations and requirements of customers by respecting deadlines, costs, quality and quality and ensure the full compliance of our deliverables.


  • To ensure that our core staff, in each sector of activity of the company is continuously qualified to provide clients with projects that meet current standards.


  • The continuous improvement of our company by constantly optimizing our infrastructures infrastructures, our manufacturing equipment and the implementation of sophisticated and efficient software in order to adequately meet the various needs of our customers.


  • As an environmentally responsible company, we are committed to continuously improving our environmental management system and be prepared for any emergency situation that may arise.