Every autumn we take calls that start the same way: the system was fine, then February happened. Adelaide summers are quietly brutal on electronics — roof cavities, garages and west-facing walls all run far hotter than the rooms people live in, and equipment installed to east-coast assumptions dies in them. The failures follow patterns we've seen over and over across 21+ years in this industry: cooked recorders, sagging power supplies, cameras staring into the afternoon sun. This page walks through each failure mode and, more usefully, the install practice that prevents it. None of it is exotic. All of it gets skipped by installers who've never sat through an Adelaide heatwave with a service phone.
Get a Free QuoteThe most common heat casualty we see is the recorder stashed in the roof space. It's a tempting spot — out of sight, close to the camera cabling, no argument with anyone about where the box lives. But an Adelaide roof cavity in a heatwave runs far beyond what any recorder is rated to survive, and hard drives are the first thing to go: they don't always die dramatically, they corrupt footage quietly until the day you actually need it.
Our rule is simple: recorders live in ventilated, habitable-adjacent spaces — a linen cupboard with airflow, a garage wall away from the western sun, a dedicated cabinet with room to breathe. Never the roof cavity. If a site genuinely has nowhere else, we say so and redesign around it rather than installing a failure with a delivery date. The extra metre of cable is the cheapest reliability upgrade in the industry.
When a system misbehaves in erratic, hard-to-diagnose ways — cameras dropping overnight, alarm panels throwing odd faults — the culprit is very often the power supply, not the equipment it feeds. Cheap plugpacks and undersized supplies run warm even in mild weather; mount one in an unventilated garage through an Adelaide summer and it ages years in weeks, sagging under load before it fails outright.
We spec supplies with genuine headroom over what the connected equipment draws, and we treat their mounting position as a design decision: ventilated, off hot masonry, away from western walls that hold the day's heat well into the night. It's the least glamorous part of any install and the one most responsible for whether the system is still working in five summers' time.
A camera aimed west in Adelaide cops the full afternoon sun at the hottest part of the day, every day, all summer. Sensors run hot and noisy, image quality degrades exactly when the light is harshest, and housings and seals cycle through expansion and contraction that eventually lets weather in. The camera doesn't die on day one — it just gets gradually worse until the footage stops being useful.
Placement discipline fixes most of it: we position cameras to get the coverage without staring into the western sky, use eaves and shade lines where the architecture offers them, and fit shrouds where it doesn't. Where a hot aspect is unavoidable, the housing spec changes to match. The goal is a camera that produces evidence-grade footage in January, not just at the handover walkthrough in spring.
Every alarm panel carries a backup battery, and every wireless detector runs on one. Heat is the single biggest factor in how long they last — a battery that sits through Adelaide summers in a hot garage or roof-adjacent cupboard ages dramatically faster than the same battery in a temperate room. The failure is invisible until a blackout arrives and the panel that should have carried through simply doesn't.
We mount panels in the coolest sensible location the site offers, and we treat battery replacement as scheduled maintenance rather than a breakdown response. On serviced systems, batteries get load-tested and swapped before they fail, not after — because a backup battery you discover is dead during an outage was never a backup at all.
Equipment datasheets quote operating ranges measured in laboratory conditions. An Adelaide install has to survive real conditions: a camera on a north-facing colorbond wall, a power supply in a tin shed, a recorder cabinet that never sees a breeze. We spec hardware with real headroom above what the mounting position will actually experience — not what the ambient forecast says.
This is the through-line of everything above: heat failure in Adelaide is almost never a component lottery, it's a design decision made months earlier. Placement, ventilation and spec headroom cost almost nothing at install time and determine whether the system quietly survives the heatwave or joins the autumn queue of "it just stopped working" calls. We've spent 21+ years learning where those decisions bite. They're built into every quote we write.
Tell us about your property and we'll come back with practical options and honest pricing.