The Pain: It’s 3:00 AM. You are fast asleep, and suddenly, your siren starts screaming. Your heart races, you grab your panic button, and check your cameras... nothing. No intruder. Just silence and a very loud siren.
The Agitation: False alarms are more than just a nuisance that angers your neighbors. They are dangerous. If your system cries "wolf" too often, you—and your armed response company—might stop treating the activations seriously. That hesitation could cost you dearly when a real threat arrives.
In this article, we draw on our years of experience servicing the Western Cape to explain exactly why this happens.
Generally, false alarms in Cape Town are caused by aging backup batteries (worsened by frequent power cuts), dirty or insect-infested sensors, strong drafts from open windows, or corroded wiring due to coastal air. Below, we break down how to troubleshoot and solve these issues.
1. The "Load Shedding" Hangover: Low Batteries
In our experience servicing homes across Durbanville and the Northern Suburbs, the number one cause of false alarms is the backup battery.
When the power cuts, your system relies entirely on the battery. If that battery is old or struggling to hold a charge, the voltage drops. This voltage fluctuation sends "confused" signals to the alarm panel, often triggering a siren activation.
