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.

Able Gates and Fencing Able Gates & Fencing Able Gates

DEFENDoor® security doors are not just security doors, but security solutions you can trust. We have been protecting families for over 28 years and will continue to ensure we use the best materials so that we can confidently say we are giving you the best. Always ensure you see a sample door before you make any purchasing decisions!

All domestic, industrial and structural steelwork.

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.

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