Securitydoor. co. za is a top expandable, retractable, trellis, sliding, folding security door manufacturer and Installer in Gauteng, South Africa, exceeding stringent SABS standards & certification for quality and strength.

Trellidor is a proudly South African company that manufactures and distributes security gates and window burglar proofing. We developed our original steel trellis-style sliding gate in the 1970’s.

Trellidor is a proudly South African company that manufactures and distributes security gates and window burglar proofing. We developed our original steel trellis-style sliding gate in the 1970’s.