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.

Gordonia Glas & Aluminium is based in Upington in the Northern Cape and specializes in the manufacturing and installation of a unique range of glass and aluminium products. Our products include shopfronts, doors, showers, frameless glass, blinds, flyscreens etc. We are a family owned and managed company and was founded in 1989 by JS & AC Blomerus. With more than 30 years of hands on experience in the residential and commercial market, nationally, we offer services from consultation and design, to manufacture and installation. We welcome the opportunity to assist you, by implementing innovative technical skills, to execute a custom made design to meet your specific needs. In line with our vision and core values of Quality work on time, Reliability, Professionalism and hands on approach, the Gordonia Glas & Aluminium team strive to consistently deliver professional services, of outstanding quality at a highly competitive price.

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.

For all your technical security needs. Burglar alarms, Cctv, Electric fencing, Clear view fencing, Gates, metal work and automation.

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.