Best shed alarm for added security

Protect your shed with the best alarm for the job.

Burglar breaking into shed

by Alex Boyd |
Updated on

Once you’ve finished in the garden for the day, there’s a tendency to just put everything away in your garden storage and forget about it till next time. But your shed could be home to lots of valuable items such as lawn mowers, hedge trimmers, bikes and furniture. These things are not cheap, so it makes sense to keep them as secure as you can, and a garden shed alarm could be just the protection you need.

Black Friday deals on shed alarms

We interrupt the regularly scheduled content to let you know that although Black Friday is over, there are still plenty of discounts to take advantage of throughout the Cyber weekend, including a whole host of Black Friday deals on shed alarms. Want to grab a bargain? These are the best deals still available or keep scrolling to continue reading our buyer's guide.

Shop the best shed alarm Black Friday deals: Amazon UKB&Q | Homebase | Wayfair | The Range

Save 20%: CPVAN Indoor Motion Sensor Alarm NOW £23.99, NOW £19.19
7% off: Yale HSA Essentials Alarm Kit, Battery Powered, 5 Piece Kit WAS £119.99, NOW £113

You don’t need to spend a fortune on protecting your garden shed, and it could help to deter potential burglars and alert you in the case of any break-in attempts. Alarm systems come in many different forms, from basic shock alarms to systems that will integrate with your home security set-up and send alerts to your phone or other connected virtual assistants like Alexa. They provide a valuable additional layer of security as thieves are more likely to target homes that appear vulnerable or lacking in security features.

So, what type of alarm do you need to protect your shed and its valuable contents? Here are some reasonably easy-to-install solutions to beef up your garden shed security.

Best shed alarm at a glance:

• Best for comprehensive protection: Yale HSA Essentials Alarm Kit - view on Amazon UK
• Best police-approved shock alarm: Defender Shock Contact Alarm - view on Amazon UK
Best budget alarm: KERUI D121 Door Alarm - view on Amazon UK

Best shed alarm

Best alarm for comprehensive protection


Yale Essential

Rrp: £119.99

Price: £89.99


If you have some basic DIY skills, you should have no problem installing this alarm kit from Yale.


  • Everything you need is included
  • The system can be easily expanded


  • No remote control to arm and disarm the system

Best police-approved shock alarm

Defender Shock Contact Alarm
Price: £14.95


The Defender Alarm is a simple and affordable wireless security system designed for use in sheds


  • Gold standard Sold Secure classification
  • Loud alarm siren


  • Battery life could be improved

Best easy fit PIR alarm

 Yale SAA5015 Wireless Shed and Garage Alarm

Rrp: £19.99

Price: £16.00
Alternative retailers
Argos£16.00View offer
Robert Dyas£19.99View offer


This alarm system includes a PIR motion detector that can detect movement up to 12 meters away,


  • Motion detection
  • Loud siren


  • Code choice is limited by the four-digit keypad

Best vibration sensor alarm

Shed Alarm

Rrp: £19.95

Price: £18.98


A compact and easy-to-install solution for garden shed protection. The unit runs off three AAA


  • Simple to install
  • Loud siren


  • Initial sensitivity set-up may involve a bit of experimentation

Best budget alarm

Door Alarm, KERUI D121
Price: £12.95


This is an easy and inexpensive way to alarm your shed. The KERUI D121 is easy to install and


  • Easy to install
  • Can be integrated into a larger system


  • AAA batteries not included

Best remote control alarm

Wireless Shed Alarm
Price: £46.13


You will need to drill a couple of holes to affix the PIR system to your shed, but once that’s


  • Easy to install
  • Remote control


  • Installation instructions could be improved

What to look for when choosing a shed alarm:

If you are going to fit an alarm into your garden shed, there are a number of things you may want to consider before making your choice.

Type of alarm: Would you prefer a wired or wireless system? Wired alarms require the installation of wiring and sensors, while wireless alarms can be installed more easily and can be monitored remotely.

Sensors: Choose an alarm with sensors that are appropriate for your shed. For example, motion sensors will detect movement inside the shed, while door sensors will detect when a door is opened.

Sound: Consider the loudness of the alarm’s siren. You want an alarm that is loud enough to deter would-be intruders and be heard from inside your home.

Price: Consider your budget when choosing an alarm. Prices can range from just a few pounds to hundreds of pounds depending on the features and capabilities.

Compatibility: If you have a smart home system or other security devices, consider choosing an alarm that is compatible with your existing system.

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Alex Boyd is a Commercial Content Writer for Modern Gardens specialising in Power tools and pressure washers. In his spare time, he enjoys DIY, Travel, Gardening, and music.

Just so you know, whilst we may receive a commission or other compensation from the links on this website, we never allow this to influence product selections - read why you should trust us

Just so you know, whilst we may receive a commission or other compensation from the links on this website, we never allow this to influence product selections - read why you should trust us