Burglar Alarm Cost UK: Complete Guide

Quick Answer: How Much Does a Burglar Alarm Cost in the UK?

A burglar alarm system in the UK typically costs £150 to £500 for a DIY wireless kit, or £400 to £1,500 for a professionally installed and monitored system, with ongoing monitoring fees of £20 to £40 per month where professional monitoring is included. Cost varies significantly based on property size, number of sensors needed, and whether monitoring is self-managed or professional.

Burglar Alarm Cost by System Type

System Type	Upfront Cost	Ongoing Cost
Basic DIY wireless kit	£150 to £350	None
Mid-range wireless kit with app control	£250 to £500	£0 to £10 per month optional
Professionally installed, self-monitored	£400 to £900	None or minimal
Professionally installed and monitored	£500 to £1,500	£20 to £40 per month

What Affects Burglar Alarm Installation Cost?

Number of Sensors Needed

Larger properties with more doors and windows need more sensors, directly increasing both the equipment cost and, if professionally installed, the labour time required.

Wired vs Wireless Installation

Wired systems generally cost more to install due to the cabling work involved, while wireless systems are quicker and cheaper to fit, which is reflected in typically lower installation labour costs.

Monitoring Level

Self-monitored systems, where alerts go directly to your phone, avoid ongoing monitoring fees entirely. Professionally monitored systems, where a monitoring centre receives alerts and can contact emergency services, add a recurring monthly cost.

Additional Features

Extras such as cameras, smart home integration, or additional keypads all add to the base cost of a standard alarm system.

DIY Installation vs Professional Installation Cost

DIY wireless alarm kits, designed for straightforward self-installation, offer the lowest overall cost since they avoid labour charges entirely. Professional installation typically adds £150 to £400 to the total cost but ensures correct sensor placement and, for wired systems, proper cable routing, which can be worthwhile for larger or more complex properties.

Ongoing Costs to Budget For

Monitoring subscription: £20 to £40 per month for professional monitoring, where selected
Battery replacement: Wireless sensors typically need battery changes every one to two years
App or cloud storage fees: Some systems charge for extended alert history or camera footage storage
Annual servicing: Professionally installed systems may recommend or require periodic servicing, particularly for insurance purposes

NSI and SSAIB Accreditation: Does It Affect Cost?

Alarm companies accredited by NSI (National Security Inspectorate) or SSAIB typically charge more than unaccredited installers, but this accreditation is often required by insurers for any discount to apply, and ensures a recognised standard of installation and monitoring quality. This is worth weighing against pure cost when comparing quotes.

Does a Burglar Alarm Reduce Home Insurance Costs?

Many UK insurers offer a modest discount for homes with an approved, monitored alarm system, though the discount amount varies and some insurers require specific accreditation for it to apply. It is worth checking with your insurer directly before assuming a specific system will qualify.

Getting Value From Alarm Company Quotes

Get at least three quotes, ensuring each is based on the same property walkthrough and coverage requirements
Ask exactly what is included in the upfront cost versus what becomes a recurring charge
Check the contract length for monitored systems, since some providers require multi-year commitments
Confirm accreditation status if insurance discounts are a priority for you

Frequently Asked Questions

Is a DIY alarm system as good as a professionally installed one?

For straightforward properties, a good quality DIY wireless system can provide effective coverage, though professional installation may better suit larger or more complex properties, and professional monitoring adds a layer DIY self-monitoring cannot fully replicate.

How much does alarm monitoring cost per month?

Professional monitoring typically costs £20 to £40 per month, though this varies by provider and the specific level of service included.

Can I cancel a monitored alarm contract?

This depends on the specific contract terms, which vary by provider, so reviewing the contract length and cancellation policy carefully before signing is important.

Do burglar alarms need annual servicing?

Professionally installed systems, particularly those with insurance-linked monitoring, often recommend or require annual servicing to maintain accreditation and warranty validity, while DIY systems generally do not.

What is the cheapest way to get a burglar alarm?

A self-installed wireless kit without professional monitoring offers the lowest overall cost, though this trades off the guaranteed response that professional monitoring provides.

Expert Insight

Insurance brokers commonly note that homeowners researching alarm systems purely for an insurance discount often find the discount modest compared to the system cost, and that the primary value of a burglar alarm should be considered its security benefit first, with any insurance saving as a secondary bonus.

Final Thoughts

Burglar alarm costs in the UK range widely based on installation type and monitoring level, but a well matched system for your specific property does not need to be the most expensive option to be effective. Comparing multiple quotes and understanding exactly what ongoing costs are involved will help you choose the right balance of cost and coverage.

Comparing alarm quotes? Ask each provider for a clear breakdown separating upfront equipment and installation cost from any ongoing monitoring fees, so you can compare true total cost over time rather than just the initial price.