Industrial process

Member of the Mecanitec Group
pâtes et papier Pulps and paper
pâtes et papier Mines and quarries
pâtes et papier Ciment plant
pâtes et papier Metallurgy
pâtes et papier Petrochemicals
We are an extension
of your project
and maintenance

Member of the Mécanitec Group, S3i (Service d’Impartition Industriel Inc.) is a contractor specializing in industrial processes. Today, we have more than 100 employees specialized in engineering, project management, piping, industrial mechanics, sheet metals, ventilation, welding, lagging and wrought metals.

Groupe S3i has three divisions: S3i Construction, S3i Mechanical and S3i Mining.

Our diverse expertise means we are equipped to work on several types of projects of different complexity and size.

General contractor specializing in industrial process projects including piping, boiler making, dust control, industrial mechanics and ventilation.

Contractor specialized in industrial mechanics for plant maintenance, retrofit, modernization, renovation and plant shutdown projects.

Mechanical contractor specialized in the mechanical works of mining environments, including industrial mechanics, piping, sheet metal, boiler making, dust control and ventilation. Learn more

New dryer on the gypsum line
Construction materials
Mississauga, ON, Canada
Increase in lime silo system capacity
Mines and quarries
Bedford, QC, Canada
#2 oven hood
Bécancour, QC, Canada