How Secure Are Aluminium Gates? Locks, Posts and Access Control
People assume a heavy gate is a secure gate. In practice, an intruder attacks the weakest point — usually the post fixing or the lock — and that has nothing to do with whether the leaf is aluminium or steel.
The four things that matter
Post foundations — properly concreted or through-bolted posts, sized for the leaf.
Locking — an electric lock or magnetic lock on automated gates, a solid drop bolt and lock on manual ones.
Height and infill spacing — enough height to deter climbing, spacing tight enough not to give a foothold.
Access control — keypad, fob or video intercom so you decide who comes onto the drive.
Automation is a security feature
An automated gate is closed by default, which is the single biggest real-world security gain. A manual gate is only secure when someone remembers to shut it, and in practice most stay open.
Privacy and visibility
Solid or close-slatted infills give privacy, but they also catch wind and hide the driveway from the street. Many customers choose a partially slatted design that screens the ground level while keeping sightlines — better for both wind loading and passive surveillance.
Frequently asked questions
Are aluminium gates strong enough for security?
Yes. Marine-grade aluminium profiles are engineered for the span, and security is determined by the posts, fixings and locking hardware rather than leaf weight.
What lock should I have on an automated gate?
An electric lock or magnetic lock integrated with the control board, so the gate is locked whenever it is closed.
Can I add an intercom later?
Yes, but running the cable at install time is far cheaper than retrofitting once the driveway is finished.
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