Our headquarters in Brigden, Ontario boasts more than 25,000 square feet of mechanical fabrication shop space, less than 20 minutes from Sarnia and Corunna's chemical and petrochemical industries. St. Clair prides its success on service 24 hrs a day - 7 days a week.


The main shop is a drive-thru style facility with four overhead cranes: two 10-ton-capacity cranes and two 15-ton-capacity cranes. Weld positioners and large diameter automatic roller systems allow us to efficiently serve the large bore piping needs of our clients, in addition to a complete line of carbon and alloy welding procedures. Fabricating stations include smoke exhaust systems for employees' protection.

In addition to our clients' mechanical needs, the facility includes space for sandblasting and painting.

St. Clair Mechanical's field forces use fully equipped mobile welding rigs, some of which have air compressors mounted on the deck, and carry an array of tools. Four hydra lifts, a 26 ton, 22 ton, 17 ton and 12 ton, also a 70 ton and 20 ton, all terrain crane. Combined with our civil equipment and access to other field forces, we can offer a complete package to clients if required.


  • Positioners and large diameter automatic roller systems
  • Twenty welding stations featuring state-of-the-art stick, TIG & MIG welders
  • Bevel machines 2"-48"
  • Pipe bevelling table
  • Band saw
  • 90-ton ironworker capacity
  • Plasma cutters
  • Victaulic groover
  • Cutting table
  • Plate rollers
With over 30 years of experience, St Clair Mechanical has provided many services to a large client base in Canada. Our primary focus is Ontario, Alberta and Saskatchewan with experience in cities like Toronto, London, Windsor, Cambridge, Kitchener, Sarnia, Edmonton, Cold Lake, Calgary, Medicine Hat, Red Deer, Loydminister, Estivan, Regina and Saskatoon. We are dedicated to getting the project done to your complete satisfaction. Contact us for more details.