How to choose the best shed security alarms and systems to keep the contents safe

"Garden sheds are a top target for thieves, making investing in the best shed security alarms and systems a clever move. Stolen bikes, power and garden tools could represent a substantial loss - and the latter might even help burglars get into the house."

"A 2025 survey by Aviva found that 29 percent of people had experienced a break-in or attempted break-in to a garden outbuilding, with two in five of these targeted specifically at the shed."

"Shed alarms use sensors to detect intrusion: those for the door/window; vibration sensors; and motion-detecting or PIR (passive infrared) sensors."

"Door/window sensors are typically two-part magnetic contact sensors. If the door or window is opened, the two parts are separated, setting off the alarm."

Garden sheds are frequently targeted by thieves, highlighting the importance of effective security systems. A 2025 Aviva survey states that 29% of people reported a break-in or attempted break-in to their garden outbuildings, with 40% specifically targeting sheds. Shed alarms, which include various sensor types such as door/window sensors and motion detectors, can provide vital security. Door/window sensors often utilize two-part magnetic contacts that trigger an alarm when separated, making them effective in preventing unauthorized access.

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