How Much Does a Home Alarm System Cost? (UK)

A complete DIY wireless alarm kit (like Hikvision AX PRO) costs from around £270 to £425, with the control panel alone from about £128 and extra sensors roughly £20 to £50 each. Self-monitor it through the app and there's no monthly fee - you own it outright. Professional monitored services cost less upfront but charge an ongoing monthly fee.

What you pay for

• The kit - panel, keypad/app, a starter set of sensors and a siren. AX PRO kits run roughly £270-£425 depending on zones and sensors.
• Extra sensors - around £20-£50 each to add more PIRs, door contacts, smoke or panic devices.
• Monitoring (optional) - free if you self-monitor via the app; a monthly fee only if you add a professional Alarm Receiving Centre.
• Installation - free if you DIY a wireless kit; labour if you use a professional.

One-off vs monthly

This is the big decision. A self-monitored smart alarm is a one-off cost with no monthly fee. A traditional monitored service (such as ADT) can look cheaper to start but adds a monthly charge that, over a few years, costs far more. See the best alarms with no monthly fee.

Browse AX PRO alarm kits and prices.

Frequently asked questions

How much does a home alarm system cost in the UK?
A complete DIY wireless kit costs from around £270 to £425, with extra sensors about £20-£50 each. Self-monitor via the app and there's no monthly fee.

Are there alarm systems with no monthly fee?
Yes - a self-monitored smart alarm like AX PRO is a one-off purchase with free app alerts and no monthly fee, unlike contract services such as ADT.

Is it cheaper to install an alarm myself?
Yes - a DIY wireless kit has no installation labour and no monthly monitoring fee, so it's usually far cheaper over time than a professionally fitted, monitored contract.