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CALL NOW: 1.877.569.8747    Service Call

imgI want to thank you for the great service you gave us at Beau Mar Interiors.
We received the walls in perfect condition and everything went great. The install worked out better than I expected and the finished look was also...

John Goulet - Beau Mar Interiors

Tri-S Industries Ltd
4085 Sladeview Cres, Unit 7 & 8
Mississauga ON, L5L 5X3

Office Hours:
Monday - Friday: 8am to 4:30pm EST

Phone: 905-569-1456

Welcome to Tri-S Industries

Tri-S Industries is Canada's leading provider of Sales, Service and Maintenance for retail store fronts, building perimeter doors, internal doors and traffic openings. With over 35 years experience in the industry no one else offers the depth and breadth of our "One Source" facility management capability. Our customers benefit from our Full Service Package from initial sales to ongoing maintenance programs. Emergency Service is available on a 24 hour - 7 day a week basis. Whether your needs are related to sales or service, let our experience and commitment assist you.

...Your source for Custom Security Solutions


  • Security Grilles - Sliding (Folding) Grilles, Rolling Overhead Grilles & Scissor Gates
  • Security Shutters - Rolling Shutters, Counter Shutters, Steel Shutters, Fire Shutters & Roll-up Doors
  • Partitions - Acoustical Panels, Folding Partitions, Operable and Relocatable Walls
  • Specialties - Traffic Impact Doors, Security Bars, Strip Curtains, Glass Doors


  • Service to 3,200+ retail locations
  • Repair, Replacement and Installation
  • Preventative Maintenance
  • Inspection Packages
  • Emergency Service 24/7 X 365 Days
  • National Account Program
  • Quick & Effective Response times

Need Service?    Call Tri-S 24/7 at 1-877-569-8747