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Mr. Gabe Kosztrub is a Technical Sales Representative in Ontario for the North 49 SA Lexsuco Team. Gabe’s primary focus is on Lexsuco’s Roofing and Waterproofing Systems, Lexcor accessory products, and associated complementary materials with the specifier community, including building envelope consultants, architects, and engineers.

Gabe holds a Computer Science and Business Administration Diploma from Seneca @ York University and a Bachelor of Arts in Business Economics from York University. Gabe has an RRO designation from IIBEC, and he is a proud member of CSC. Gabe completed additional Marketing and Sales training at various Professional Sales Associations.

He has a broad understanding of roofing and waterproofing systems, having worked for a consulting firm focused on commercial roofing specifications, project management, and as a waterproofing manufacturer’s technical representative. His 18 years of sales and hands-on, specialized experience will provide clients with a professional approach to problem-solving, greatly benefiting the businesses we support.


Architects, Consultants, Designers, Engineers, and Building Owners


Ontario and Western Canada

Represented brands

  • Asphalt
  • Bulk Asphalt
  • Waterproofing & Roofing products
  • DEXcell® Cement Roof Board
  • DEXcell® Glass Mat Roof Board
  • DEXcell® FA Glass Mat Roof Board


  • EPS Insulation


  • Single Ply Systems


  • Building Envelope products


  • Urban farming


  • Image technology long term time lapse

Lexguard Warranties

  • Building Products & Systems Warranties

Book a learning seminar

We would be happy to offer a virtual or in-person learning seminar for you and your colleagues at your convenience.

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