
A Quebec-based deep foundations contractor with decades of experience, PRECO-MSE is a leader in the construction industry, specializing in deep foundations, retaining structures, soil stabilization and more. Located in Vaudreuil-Dorion, a suburb of Greater Montreal, Que., the company is an expert in deep foundations in the province with the ability to carry out all types of piling work.
“We offer full-service pile driving – from site analysis and engineering consultation to precision-driven installation – using state-of-the-art equipment and techniques,” said Caroline Théorêt, the general manager at PRECO-MSE. “Our team prioritizes structural integrity, efficiency and environmental responsibility, meeting the highest industry standards for both private and public sector projects.”
With its commitment to safety and performance, PRECO-MSE delivers reliable foundation solutions for commercial buildings and infrastructure developments. A specialized company that belongs to a major group in the province’s construction industry, its experience is extensive – involving deep foundations, drilling, underpinning and rigid inclusions in Quebec and across Canada.

With a staff of between 120 to 150 individuals depending on the season, Théorêt says PRECO-MSE fosters a collaborative environment where innovation and professional growth are encouraged. “Leadership is supportive, and there’s a strong emphasis on teamwork and work-life balance,” she said. “Employees are given the opportunity to take on meaningful challenges, contribute their ideas and see the impact of their work. It’s a place where you feel valued and motivated to perform and do your best.”
Théorêt says the construction industry has evolved in recent years and working in this vibrant environment is not only an opportunity to put the company’s services into practice, but also a chance to create genuine connections with its employees, customers and suppliers.
“Our team prioritizes structural integrity, efficiency and environmental responsibility, meeting the highest industry standards for both private and public sector projects.”
Caroline Théorêt, PRECO-MSE
Safety is paramount
When it comes to its commitment to safety, since 2020, PRECO-MSE has made significant improvements in workplace safety, achieving reductions in safety indicators year after year, even as its total working hours have increased.
“Our commitment to health and safety has led to the implementation of strong measures reinforcing onsite prevention and improving risk management across all our projects,” said Théorêt. To uphold this commitment, the company developed a structured health and safety management system based on three key pillars: risk management, prevention and communication. “This system enables us to track both proactive and reactive indicators, ensuring timely action is taken,” Théorêt explained. “It also includes comprehensive prevention programs, safety procedures and informative tools designed to raise worker awareness of safety standards and best practices across various construction environments.”

The company’s Corporate Health and Safety department consists of professionals across Eastern Canada, who actively promote a strong safety culture by sharing their expertise and empowering construction workers to become safety champions.
“They support operations through regular inspections, risk assessments, work plans, toolbox meetings and an extensive safety training program. In the event of an incident, they conduct thorough investigations and accident analyses in collaboration with the operations team in the field, ensuring everyone is accountable for safety across the worksite.”

A fair workplace
Théorêt emphasizes the value that PRECO-MSE places on women’s contributions to society and says the company prioritizes an equitable and fair workplace for women, where they have equal access to opportunities and are treated with dignity.
“I am happy to contribute every day to making the company grow and prosper alongside excellent partners who are also powerful allies contributing to the development of women,” said Théorêt. “I encourage current and future generations not to be afraid to go for it!”