Our Team

Have a technical question or specific need? Please use the Contact Us form below and one of our technical sales representatives will respond with assistance.

JP Cilliers
Business Unit Manager
Email: jp.cilliers@stoncor.com
Phone: 083 591 4030

Ryan Caldwell
Architect and Engineering Manager
Email: ryan.caldwell@stoncor.com
Phone: 071 864 2321

Tristan Knowles
Technical Sales Representative for Western Cape
Email: tristan.knowles@stoncor.com
Phone: 063 699 8934

Louis Cloete
Technical Sales Representative for KwaZulu-Natal
Email: louis.cloete@stoncor.com
Phone: 066 532 9189

Ross Harris
Technical Sales Representative for Gauteng, North West, Limpopo
Email: ross.harris@stoncor.com
Phone: 082 467 7468

Please use this form to send us any comments, questions or suggestions to help Tremco South Africa better serve your roofing and weatherproofing needs.

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