724, Bériault, suite B,
Longueuil (Québec) J4G 1R8

1250, av. de la Station, casier 6
Shawinigan, Qc
G9N 8K9

François Hamel, geologist



Patrick Usereau, geologist



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Corporate profile

Trusted professionals at your service.

Sedexlab‘s head office is located in the Montreal suburb’s city of Longueuil. Its multidisciplinary team of geologists, chemists, engineers and technicians have cumulated over 30 years of experience in the fields of environmental consultancy and materials quality control.

Founded in 1999, the company has since formed strategic alliances with other professionals in the environmental industry, enabling it to widen its spectrum of services. Sedexlab offers a complete range of services covering all aspects of the field of environmental consultancy, from environmental characterization studies to the engineering and operation of remediation systems.

Pyrite testing

Further more, the firm is now positioned as a front-runner in the field of backfill material quality control (pyrite tests).

Under government approval, the testing laboratory is regulated by a quality assurance system certified by the International Standards Organization (ISO).

“Sedexlab is fully owned by its professionals. This represents a powerful incentive to meet our clients needs, because we fully understand that our success is directly related to yours”.

Quality assurance

The firm has developed a quality manual written in compliance with the requirements of the ISO 9001: 2008 international standard system. A quality plan representing the laboratory’s operations applies to projects and testing services executed by Sedexlab. All fields of activities such as personnel training, sampling methods, laboratory essays, report content, nonconformity control, etc. are controlled in the quality assurance system documentation.

Our quality policy

The administration is committed to demonstrating professionalism in all aspects of the firm’s activities. The company is equally committed to providing its clients with expert services in compliance with all protocols and professional ethical codes. The quality of our reports, our availability to the public, and our consistency to meet all deadlines constitute priority elements in obtaining high levels of satisfaction from our clients.

Employment offer

Sedexlab and its partners employ a group of multidisciplinary professionals in the fields of earth and environmental sciences on a regular basis. The firm offers competitive working conditions, a stimulating environment and interesting career oportunities. In our continuing expansion, we are frequently in search of devoted, innovative employees and collaborators who are willing to join a dynamic and progressive company. Do inquire about our career opportunities and send your resume to the following address: