About Us

Incorporated in 1979, Tee Jay Electrical and Instrumentation Services Ltd (TJI) is based in Sarnia, Ontario. We are a full service industrial and commercial contractor with a belief in the strong values of honesty and integrity aimed at providing only the best and most efficient services to our clients. We take professional pride in maintaining long term associations and strive to achieve personalized excellence and top quality work.

Tee Jay specializes in electrical and instrumentation services, including fiber optics, panel and analyzer fabrication, general contracting and project management.

Our core workforce is made up of approximately 60 dedicated men and women with qualifications through the IBEW (Electrical) and UA (Pipefitter) union organizations. Tee Jay has the infrastructure necessary to exceed 300 employees to meet job demands for large shutdowns or projects. We are also affiliated with a number of contractor organizations.

Tee Jay’s Management Team has a combined 150 years worth of experience in the industry. They are hands on in ensuring the completion of each and every project in a safe and timely manner while maintaining a continued line of communication with our clients.


Tee Jay has a well equipped shop facility with over 10,000 sq ft of office and shop space, complimented by a full staff. The shop is fully equipped and used for all our fabrication needs.