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For nearly forty years, Aluminium Security Industries (ASI) has been helping South Australian homeowners feel safe within their homes.
From its Holden Hill factory, just ten minutes from Adelaide’s CBD, this proudly local business has built a reputation for quality craftsmanship, dependable service, and family-driven values, all while maintaining a close and enduring partnership with Capral Aluminium and the Amplimesh® brand.
“I started here when I was eighteen, on the factory floor making doors,” recalls Adrian Dow, owner of ASI. “Over time I moved into installation, then management, and eventually ownership. It’s been a long journey, but one I’m really proud of. We’ve been in the same premises all this time, growing slowly, learning, and constantly improving.”
Today, ASI manufactures and installs security doors and screens for households right across metropolitan Adelaide. Their customers range from families upgrading older diamond-grille doors to high-performance Amplimesh® SupaScreen® and PrivacyGuard® systems, to builders and real estate agents seeking reliable security solutions. “The heart of what we do is helping people feel secure in their homes,” Adrian says. “It’s a great feeling to know that something you’ve built helps protect a family.”
That pride runs deep at ASI, not only in the products they make but also in the relationships behind them. ASI’s connection with Capral and the Amplimesh® brand spans more than three decades. “Capral’s been with us from the very beginning,” Adrian says. “They supply all of our materials and have always been there when we need help. Over the years, we’ve even been part of product development, trialling new frames and meshes, testing how things work in real-world conditions, and feeding that back to the Capral team. It’s a genuine two-way relationship.”
That collaboration has played a key role in the ongoing success of both businesses. For Adrian, being able to provide practical feedback from the factory floor is a huge advantage. “We work with these products every day, so we see how they perform and what could make them even better,” he explains. “Capral’s great in that they actually listen. They’ll take your ideas on board, come back with improvements, and help you get the right solution for your customers. It’s not a set-and-forget relationship, it’s real partnership.”
That spirit of collaboration also extends to Capral’s local presence. With a distribution centre at nearby Kilburn, ASI can receive up to three deliveries a week, ensuring a steady supply of aluminium extrusions and components. “If we ever need something urgently, they sort it out straight away,” Adrian says. “That reliability is priceless, it means we can keep our promises to our customers.”
As one of the longest-standing Amplimesh® fabricators in South Australia, ASI has seen the brand evolve dramatically over the years. “When I started, most of what we sold were decorative grille doors, diamond patterns, ornate designs,” Adrian recalls. “Today, about 80 per cent of what we make is plain mesh, clean, modern, and incredibly strong. Products like SupaScreen® have changed the way people think about security. They’re stylish, they last, and they perform.”
That performance matters, especially in a country like Australia, where quality and safety can’t be compromised. “I’m proud that Amplimesh® is Australian made and that we’re using Australian aluminium,” Adrian says. “Capral extrudes the aluminium just forty-five minutes away in Angaston. Knowing that local people are involved at every stage, from billet to extrusion to fabrication, that’s something special.”
The Holden Hill factory hums with that same sense of purpose. Adrian’s team work closely together across manufacturing, measuring, and installation. “Everyone chips in,” he says. “It’s a real family business, even our kids help out during school holidays. It’s nice seeing them learn the craft and be part of something we’ve built together.”
That family ethos flows through to ASI’s showroom, a welcoming, hands-on space where customers can see, touch, and test the quality for themselves. “When someone’s investing in a SupaScreen® door, they can feel the difference,” Adrian says. “It’s solid, well-made, and it gives them confidence. That’s what it’s all about.”
Even after four decades, Adrian’s focus is firmly on the future. “Our plan is simple, keep doing what we do, and keep doing it better,” he says. “We want to be here in another twenty years, still serving the same families, maybe their kids and grandkids, with the same level of quality and care.”
For ASI, and for Capral, that’s what makes the Amplimesh® story so enduring, a partnership forged in trust, strengthened by craftsmanship, and built to last, just like the screens themselves.
