Burglar alarm monitoring in the UK means your alarm system is connected — via the internet or telephone line — to a staffed Alarm Receiving Centre (ARC) that operates 24 hours a day, 365 days a year. When your alarm triggers, the ARC verifies the alert and dispatches a response: police, a keyholder, or a physical security guard, depending on your contract. It sounds reassuring, and it often is — but it comes at a cost, and not every home genuinely needs it. This guide breaks down how monitoring works, what it costs, and when it is and is not worth the money.
When a professionally monitored alarm is triggered, the signal travels — usually over a dual-path connection (broadband plus GPRS/4G SIM) — to an Alarm Receiving Centre. This redundancy means the signal gets through even if your internet connection is cut. The ARC operator follows a response protocol:
Monitoring costs vary depending on whether you have the system installed by the monitoring company, the technology used for signal transmission, and what response level you require. Broadly, expect to pay:
| Monitoring Type | Monthly Cost (approx.) | Annual Cost | Notes |
|---|---|---|---|
| Basic keyholder-only monitoring | £15–£25/month | £180–£300/year | ARC contacts your keyholders on alarm trigger |
| Police URN monitoring | £25–£40/month | £300–£480/year | Requires NSI/SSAIB-certified system; police respond to verified signals |
| Guard response monitoring | £35–£60/month | £420–£720/year | Physical guard attends property; fastest response |
| Video-verified monitoring | £30–£50/month | £360–£600/year | CCTV or audio used to verify before escalating; reduces false alarms |
In addition to the monthly monitoring fee, most companies charge an annual maintenance visit (typically £80–£150) and may have a minimum contract length of 12–36 months. Read the terms carefully — some companies make it difficult to cancel without penalty.
For police response to be authorised, your alarm system must hold a Unique Reference Number (URN) issued by a police force. To get a URN, your system must be installed and maintained by a company certified by either the National Security Inspectorate (NSI) or the Security Systems and Alarms Inspection Board (SSAIB). Both bodies audit companies against the relevant British Standards (BS 4737 or BS EN 50131).
If you buy a DIY alarm system and connect it to a third-party monitoring service that is not NSI or SSAIB approved, you will generally not qualify for police response — the ARC can contact keyholders, but that is the limit. For the full police response chain, you need a certified installation from day one. See our guide to choosing an NSI-approved alarm company for a full explanation of what certification means in practice.
Self-monitored alarms — such as Ring Alarm, Yale Smart Home Alarm, and Verisure’s self-monitored tier — send push notifications directly to your smartphone when the alarm triggers. You decide how to respond: call a keyholder, ring the police yourself, or dismiss a false alarm. There is no monthly fee beyond any app subscription, and response is immediate (assuming you have your phone with you).
The obvious weakness is that if you are unavailable — asleep, in a meeting, abroad with poor signal — no one else is watching. A professional ARC is available 24/7 regardless of your circumstances. Self-monitoring is acceptable for low-risk properties and people who want to keep costs down; professional monitoring is worth the cost for higher-value homes, frequently empty properties, or those with health vulnerabilities.
Yes — and this is one of the strongest financial arguments for professional monitoring. Many UK insurers offer meaningful discounts (typically 5–15%) for homes with a monitored alarm from an NSI or SSAIB-approved company. Some insurers require a monitored alarm as a condition of covering high-value properties. Which? recommends calling your insurer before committing to a system to confirm exactly what discount applies — the savings can offset a significant portion of the monitoring fee over time.
The calculation is straightforward: if your insurer reduces your annual premium by £120 and monitoring costs £240/year, the net cost of monitoring is £120/year — or £10/month. For peace of mind on top of that saving, many homeowners find that entirely acceptable.
Professional monitoring is worth the cost in these situations:
Verisure is Europe’s largest monitored alarm company and has a significant UK presence. Their system uses audio and visual verification before escalating, which dramatically reduces false alarm rates. They offer their own guard response service in many areas. Contracts typically run 36 months, which is a significant commitment. Monthly costs start from around £34.99/month after an installation fee. The hardware is proprietary, which means you are locked into their ecosystem.
ADT is one of the most established names in UK alarm monitoring. They offer a range of systems from DIY self-install to fully installed and monitored packages. Their Alarm Receiving Centre is NSI Gold certified. Monthly monitoring starts from around £25/month. ADT has faced some criticism for customer service and cancellation processes, so check recent reviews before committing.
Yale offers a hybrid approach: a DIY-installable alarm system (the Yale Smart Home Alarm) that can be optionally connected to Yale’s own monitoring centre for around £9.99–£19.99/month. This is significantly cheaper than Verisure or ADT, though the monitoring is keyholder-only rather than police-URN certified. For renters or homeowners who want monitoring at a lower price point and do not need police response, it is a sensible middle ground. Read our comparison of the Yale vs Ring Alarm systems for a detailed look at how they compare.
Ring Protect Pro (£10/month or £100/year) includes 24/7 professional monitoring as well as unlimited video storage for all Ring cameras. The monitoring is US-based and provides police dispatch by calling 999 on your behalf — it is not an NSI/SSAIB-certified ARC, which means it will not qualify for police URN or insurance discounts from standard UK insurers. That said, for the price it offers a useful safety net. Ring also includes a built-in cellular backup (Ring Edge) so the system continues functioning if your broadband goes down.
A 24-hour alarm monitoring service works around the clock — including bank holidays and overnight — with no gap in coverage. Here is the sequence from alarm trigger to resolution:
This procedure is standardised across NSI and SSAIB-approved ARCs under BS 8243 (the British standard for alarm monitoring procedures). Non-approved monitoring services operate without this regulatory framework — which is why certification matters.
Monitoring prices are indicative as of September 2026. Always request a written quote and read the full contract terms, including cancellation clauses, before signing.
Buying a smart alarm is easy — but many homeowners discover it doesn't qualify for an insurance discount. Here's what…
There are three main types of burglar alarm available to UK homeowners, and they are not interchangeable. Here is what…
Home alarm costs in the UK range from £100 for a DIY kit to over £2,000 for a fully installed…