About Us


Established in 2003, we are a forward thinking company in an ever changing world. We have over 35 years of combined experience in manufacturing and fencing industries, but also have a keen ability to create solutions for more complex security issues and thus have been pivotal in many specialist projects.

Customer Focus

At Portcullis, we aim to provide our customers with the most advanced and superior security products on the market, combined with the highest quality and standards of installation currently operating in Australia today. With the addition of quality Access Control, we can offer you complete peace of mind.

We can consult with you during design, manufacture and installation so that you can be sure that you will receive a professional service which will also ensure that cost effective work practices remain at a high standard throughout the duration of our time with our customers.


We are capable of manufacturing all products specifically to meet your needs. All products are tested to conform with Australian standards before leaving the factory.

With our own fleet of vehicles, we can transport all our products to the customer with ease.

Portcullis also has a vast range of safety and security products available including the latest from both Europe and the UK. These include Vimpex UK Alarm Products for Fire, Security & Industry and the ASO Safety Solutions products from Germany, locks and gate closers from Locinox (Belgium).

© 1999-2003 by Marvin Hull

A portcullis was a heavy grilled door that dropped vertically down through slots or guides, and most often protected the main entrance of the castle. It could be made of many different materials, but almost all were made of oak, then plated with iron. On the bottom were spikes. The raising of the heavy portcullis was sometimes assisted with counter weights, pulleys, and rope.

Often times a quick release device was used to quickly lower the portcullis. When the castle came under attack, a guard could take a sledge hammer and hit the release latch. The portcullis would quickly drop closed.

The portcullis went through development stages. It was invented by the Romans in 208 B.C. and began showing up in castle construction in the 12th Century. One of the last stages saw it incorporated into the drawbridge. When raised, the drawbridge lowered. When lowered, the drawbridge went up. Some castles had more than one portcullis.

If you visit a castle today you can actually see the slots that guided the portcullis up and down. Not many actual portcullis survive in modern times because of the material used in their construction. Since most were made of wood, they quickly decayed.

Which castle had the most portcullises? This is unclear, but Beaumaris castle in North Wales was designed to have six, three for each gatehouse.

Some examples of castles that still have a portcullis are Hever, Warwick, and Caldicot.


With thanks to “Castles of Britain” for their kind permission to use their definition and photos from website.

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