Why an Alarm Install Matters More Than the Brand

People spend weeks researching which alarm brand to buy — Ring, SimpliSafe, Yale, Verisure, eufy — and then the install takes 20 minutes from a box. Six months later, the alarm has been false-triggering, a sensor is hanging off the wall, and the keypad's lost connection. The brand was never the problem.

What actually matters in an alarm install

1. Sensor placement (most installs get this wrong)

A PIR motion sensor in the wrong corner of a room misses half the room. Two principles I use every time:

• PIRs detect movement across their field, not toward it. Mount them so an intruder would walk across the beam, not directly at the sensor.
• Avoid pointing PIRs at radiators, sunlit windows, or doorways with pets. False alarms are the #1 reason people switch off their system.

2. Door and window sensor alignment

Magnet and reed switch must be within 5mm of each other when the door is closed. Cheap installs have a 2cm gap and the alarm triggers every time the wind moves the door. Test by closing the door slowly and watching the LED on the sensor — it should go solid green only when the door is fully shut.

3. Keypad and panel position

The keypad goes near the most-used entrance, at eye height, on a wall where you can see it as you walk in. Not behind the door, not in the cupboard. The main panel (where the sirens and battery live) goes somewhere central, hidden, and on a wall with reliable Wi-Fi.

4. Wi-Fi planning before the install

Every modern alarm needs solid Wi-Fi at the panel. Walk to the panel position and check signal strength on your phone before installing. Below 2 bars of 2.4GHz means you need a mesh node or extender first — not later.

5. Battery sensors — mark install date

Wireless sensors run on coin cells (CR123A, CR2032) that last 2-5 years depending on traffic. I write the install month on the back of each sensor with a marker. When you're swapping batteries 3 years later, you'll thank past-you.

6. Exit and entry delays

Default 30-45 seconds exit delay is fine if your alarm keypad is by the front door. If it's down a hallway, increase the entry delay so you have time to disarm before the siren screams.

7. Siren placement

An external siren goes on the front of the house, ideally near the eaves — high enough to be hard to silence but not so high it triggers your neighbour's window every time it goes off. Internal sirens go central, where they can be heard from any room.

8. Testing the install

A proper install ends with a full walk test:

1. Arm the system in "stay" mode.
2. Trigger each door sensor — confirm correct zone shows.
3. Trigger each PIR — confirm correct zone shows.
4. Activate panic / SOS — confirm siren and alerts.
5. Disarm and re-arm.

Why the brand is the smaller decision

A Ring system installed properly will outperform a Verisure system installed badly. A SimpliSafe with sensors in the right place will catch break-ins a Yale install with badly aligned magnets will miss. Spend less time obsessing over which kit and more on where each piece goes.

When to bring in a handyman

I install all the major DIY alarm kits and also offer pre-purchase consultancy — I'll walk your home, mark sensor positions, recommend a kit that fits your layout, then install it. Typical 4-zone install takes 2-3 hours including testing and app setup.