About ADI

ADI Security Products is situated on the South Coast of NSW in the small coastal town of Gerringong, providing a range of products for locksmiths, gate fabricators, roller door distributors and architectural hardware distributors. We manufacture locking devices for industrial, retail and public works establishments, together with devices to restrict the possibility of attack on locking devices. For gate fabricators we provide products enabling them to mount a more sophisticated locking device to gates and for roller door distributors we provide alternate locking devices to ensure their product is more secure.

The company was originally founded by Brian and Peter Preddey as a necessary tool to assist locksmiths. Both Brian and Peter were locksmiths themselves and operated a large and well-respected business, Preddey’s Locksmiths, in the southern districts of Sydney. Being highly inventive, they found that there were applications in the industry which were not being covered by a product on the market and proceeded to create them. Chief among these was the Preddey Bolt which is still manufactured today in an updated form, under the name of the ADI Bolt.

With the company remaining small it is able to listen to its market and cater for small requests and modifications to allow its products to be used in one-off situations and satisfying many small wheels in the big picture. We distribute through a small wholesaler network and are able to continually satisfy customer requests to produce products which are unique to their needs.

ADI currently have a huge market share throughout NSW and are looking forward to a similar growth Australia-wide with the possibility of breaking into the international market, providing products with smarter features at a better price. Under our new direction we are bringing our products forward into the twenty-first century and feel that with more modern designs of a very successful product and different manufacturing methods we will be able to encroach on our competitors’ market share with a better looking, better priced and smarter featured product.