A professionally installed burglar alarm in the UK typically costs £450 to £2,500 for a domestic property in 2026, depending on the system type, the number of detectors, and whether monitoring is included. The figures in this guide are based on our experience installing intruder alarm systems across Essex and Greater London since 2011, including hundreds of installations across Brentwood, Romford, Ilford, Chelmsford, Upminster, and the wider M25 corridor.
The aim of this guide is straightforward: to give you a realistic picture of what a burglar alarm costs to install in the UK in 2026, what affects the price, and what to expect from a properly accredited installer. All figures here are indicative ranges; the only reliable way to get an exact price is to book a free site survey.
Types of Alarm and What They Cost
UK burglar alarms fall broadly into three system types. The right choice depends on the property, the threat profile, the insurance requirement, and whether police response is needed.
Bell-Only Systems: £350 to £600 installed
A bell-only system sounds an external siren when triggered and relies on the noise deterring the intruder and alerting neighbours. There is no monitoring and no automatic notification: if no one hears the siren, no one responds.
- Typical cost: £350 to £600 installed
- Best for: low-risk properties, lower-value homes, or as a visible deterrent
- Limitations: no remote notification, no monitoring, not eligible for police response
Speech Dialler / Self-Monitored Systems: £500 to £900 installed
A speech dialler system has all the features of bell-only plus an automatic notification to your phone. When the alarm triggers, the system either places a pre-recorded voice call to a list of numbers, or sends an SMS, or pushes a notification through a smartphone app. You then decide whether to respond yourself or send a keyholder.
- Typical cost: £500 to £900 installed
- Best for: homeowners who want personal notification without committing to monthly monitoring fees
- Limitations: no professional monitoring, no police response eligibility, you must act on the alert yourself
Modern speech dialler systems use a SIM card rather than a landline. This matters because BT's PSTN switch-off (the move from copper phone lines to digital, currently scheduled to complete by January 2027) makes traditional dialler-over-landline systems unreliable.
Professionally Monitored (Grade 2 or 3, ARC): £700 to £1,800 installed plus £15 to £35/month
A monitored alarm is connected to a 24/7 Alarm Receiving Centre (ARC). When the alarm activates, the ARC verifies the signal, follows the agreed response procedure, and where the system is graded and registered, can request a police response. Police response under the URN (Unique Reference Number) scheme requires the system to be installed and maintained by an inspectorate-approved company (NSI or SSAIB) and to meet at least Grade 2 of the European EN 50131 standard.
- Typical install cost: £700 to £1,800 installed for most domestic properties
- Monitoring fees: £15 to £35 per month depending on level of service (key-holder only vs police response)
- Best for: higher-value properties, properties left unoccupied for extended periods, properties where insurance specifies a monitored alarm, and any client who wants police response eligibility
- Key advantage: the only system type eligible for police response and the only system that satisfies stricter insurance requirements
What Affects the Price?
Beyond the system type, several factors push the price up or down. A free survey lets the installer see them all in context; the ranges below are typical contributions.
Wired vs Wireless
Wireless systems use no cabling between the panel and the detectors, so they install faster and with less disruption. The equipment is more expensive, so a wireless installation typically costs 15 to 25 per cent more than a wired equivalent. Wireless is the right choice for listed buildings, finished properties, rented homes, or any property where running cable is impractical. Wired remains the default for new-builds, refurbishments, and any property where the cabling can be installed first-fix.
Number of Sensors and Detectors
A typical domestic installation has 4 to 8 detectors: a mix of PIR motion sensors, door contacts, and sometimes vibration sensors. Adding sensors costs £30 to £60 per device installed. Larger properties, properties with outbuildings, or properties with multiple entry points add cost in proportion.
Property Size and Layout
A 1-bedroom flat needs fewer detectors and less cable than a 5-bedroom detached. Multi-storey properties take longer to install. As a rough guide for the install component:
- 1 to 2 bedroom flat: £450 to £700
- 3 bedroom semi-detached: £550 to £1,000
- 4 to 5 bedroom detached: £800 to £1,800
- Larger or complex properties: £1,500 to £2,500+
System Grade (NSI/SSAIB Grade 2 or 3)
A graded system meets specific resilience and tamper-resistance standards under EN 50131. Grade 2 is appropriate for most domestic properties; Grade 3 is required for higher-risk premises (jewellers, pharmacies, properties with high-value contents). A graded installation uses certified equipment, certified installation procedures, and certified monitoring, and is the prerequisite for police response. Expect a graded installation to add £100 to £400 over an equivalent ungraded system, depending on the components specified.
Smart App Integration
Modern panels from Pyronix, Texecom, and Risco support smartphone control: arm and disarm remotely, receive push notifications, view system status, check the event log. Smart integration adds £50 to £150 to the installed cost, plus an optional small annual cloud-connectivity subscription on some manufacturers.
Annual Maintenance Contract
Most installers offer a maintenance contract that bundles servicing visits, priority callout, and (for monitored systems) the monitoring contract. The cost of the contract is sometimes baked into a slightly higher install price; sometimes it is an annual fee on top.
J&L Security 2026 Pricing: Confirmed Installed Rates
The ranges above are sector-wide indicative figures. The pricing in this section is our own confirmed 2026 starting pricing for installations in Essex and Greater London. Final quotations follow a free site survey because the property layout determines the detector count and cable routes; the figures below are the published starting points.
Standard Wireless Grade 2 Residential Package: from £485 + VAT
Our standard residential package uses the Pyronix Enforcer V11 wireless Grade 2 control panel and includes everything most homes need for the main entry points and ground floor:
- Pyronix Enforcer V11 control panel with on-board keypad (mains powered)
- Wireless door contact, fitted to the main entrance door
- Two wireless motion detectors
- Two proximity tags
- Wireless external siren
The package starts at £485 + VAT, installed and commissioned. Most properties require additional detectors to cover side and rear access, internal high-traffic rooms, and any outbuildings. The exact specification is finalised at the survey based on the layout.
Additional Detectors and Accessories
The following items can be added to the standard package or specified up front:
| Component | Price (excl. VAT) |
|---|---|
| Wireless motion detector | from £55 |
| Door contact (additional) | from £45 |
| Vibration detector | from £65 |
| Combined vibration and door/window contact | from £75 |
| Dummy siren (typically rear or side elevation) | from £25 |
| Wireless external siren (additional) | from £125 |
| Proximity tag (additional) | from £12 |
| Keyfob | from £45 |
| Panic button | from £65 |
| LCD keypad | from £115 |
Smartphone Control: Homecontrol 2.0 App
The Pyronix Enforcer V11 connects to your home internet router and pairs with the Homecontrol 2.0 app. The app gives you live status, push notifications for activations and faults, and remote arm/disarm. The pricing structure is straightforward:
- Communication module plus first year of app subscription: from £48 + VAT
- Annual app subscription thereafter: from £30 + VAT
- SIM card option for properties without reliable broadband: priced on survey
The system without the module is a "bells only" alarm: it sounds at the property when triggered but does not notify anyone remotely. For most residential customers, the app integration is the recommended option because it converts a passive deterrent into a system you can interact with from anywhere.
24-Hour Monitoring and Police Response
For customers who want professional monitoring on top of the app, our 24-hour UK-manned call centre option starts at £105 + VAT per year. When the alarm activates, you receive the app notification and a call handler also contacts you to confirm the situation and follow the agreed escalation path. Police response can be incorporated where the system is graded and registered for a Unique Reference Number under the police response scheme.
Maintenance Contracts
Annual servicing keeps the system reliable and is required by most home insurance policies for the alarm to remain a valid security measure. Our maintenance starts at:
- Residential properties: from £120 + VAT per year
- Commercial properties: from £180 + VAT per year
Both packages include one routine annual maintenance visit and one emergency callout within the contract year.
Note on pricing: all figures above are starting prices excluding VAT. The final quotation is provided in writing after a free site survey, because the detector count, mounting requirements, and cable routes vary by property. Pricing is current as at May 2026 and may be reviewed periodically.
NSI and SSAIB Approved Installer vs Unaccredited: Why It Matters
The two recognised inspectorates for the UK security industry are NSI (National Security Inspectorate) and SSAIB (Security Systems and Alarms Inspection Board). An installer that is not approved by one of these is not eligible to install systems for police response and is unlikely to satisfy stricter insurance policies.
Why this matters in practice:
- Insurance: many home insurers require an inspectorate-approved system as a condition of cover, particularly for higher-value contents or for properties in higher-risk postcodes. An unaccredited installation may invalidate cover.
- Police response: the URN scheme that allows police to be dispatched on alarm activation is only available for systems installed and maintained by NSI or SSAIB approved companies, and only for Grade 2+ systems with confirmed-activation criteria.
- Quality of installation: inspectorate approval requires periodic audit of installations, documentation, technical capability, and ongoing professional development. It is a meaningful quality signal.
J&L Security is SSAIB approved. Our installations are eligible for police response under the URN scheme and meet the standards required by major UK insurers.
Ongoing Costs
The install fee is one-off; the ongoing costs are recurring and worth budgeting for from the outset.
Annual Maintenance Contracts
Most installers offer an annual maintenance contract that covers a scheduled service visit, priority response on faults, and battery replacements within scope. Most insurance policies require an annual service for the alarm to remain a valid security measure. J&L Security maintenance contracts start at £120 + VAT per year for residential and £180 + VAT per year for commercial properties; both packages include one routine maintenance and one emergency callout within the contract year.
Monitoring Fees
Where the system is monitored, monthly fees typically run £15 to £35. Lower end is keyholder-response monitoring; upper end is full police response under the URN scheme.
Battery Replacements
Panel backup batteries last 3 to 5 years and cost £15 to £30 each to replace. Wireless detector batteries last 2 to 5 years; the cost varies by manufacturer.
False Alarm Callout Charges
Repeated false activations on a monitored system can incur ARC callout charges, typically £30 to £80 per callout after a free allowance. The URN scheme also has rules: too many confirmed false activations can lead to police response being suspended for the property.
Essex and Greater London Context
Local labour rates and property mix matter. Across our service area:
- Brentwood, Shenfield, Hutton, and the wider CM13 to CM15 belt: a high proportion of detached and semi-detached family homes; insurance-driven demand for monitored systems with police response is common.
- Romford, Hornchurch, Upminster, and the RM1 to RM14 area: mixed housing stock from terraced through to detached, plus active commercial premises in Romford town centre.
- Ilford, Goodmayes, Seven Kings (IG1 to IG3): high-density residential and active commercial; demand is split roughly evenly between domestic and small commercial.
- Chelmsford and the surrounding CM postcodes: growing commuter belt with new-build estates and a healthy mix of older terraced and Victorian properties.
- Greater London (E14, SE10, IG, RM, EN postcodes): labour rates are at the higher end of our quoted ranges; commercial premises and HMOs are well represented.
J&L Security covers all of Essex and Greater London. Our base in Brentwood gives us efficient coverage of the M25 north and east corridors, and we work with both domestic and commercial clients across the region.
Pricing Summary Table (UK, 2026)
The first table below shows the indicative UK market ranges for context. The second is our own published starting pricing.
UK market ranges (sector-wide indicative)
| System type | Supply cost | Installation | Annual monitoring | Total year 1 cost |
|---|---|---|---|---|
| Bell-only | £200 to £350 | £150 to £250 | None | £350 to £600 plus optional ~£100 servicing |
| Speech dialler / self-monitored | £300 to £550 | £200 to £350 | None (you respond) | £500 to £900 plus optional ~£100 servicing |
| Monitored (Grade 2 or 3, ARC, police response eligible) | £400 to £1,200 | £300 to £600 | £180 to £420 | £880 to £2,220 plus ~£100 to £150 servicing |
J&L Security confirmed starting prices (May 2026)
| Option | From (excl. VAT) | Notes |
|---|---|---|
| Standard wireless Grade 2 residential package (Pyronix Enforcer V11) | £485 | Panel with keypad, one door contact, two motion detectors, two proximity tags, one wireless external siren |
| Homecontrol 2.0 app module plus first year subscription | £48 | Push notifications, remote arm/disarm, fault alerts |
| Annual Homecontrol 2.0 app subscription thereafter | £30 | Per year |
| 24-hour UK-manned monitoring | £105 / year | Police response can be incorporated for Grade 2+ systems with URN |
| Annual maintenance, residential | £120 / year | One routine maintenance plus one emergency callout |
| Annual maintenance, commercial | £180 / year | One routine maintenance plus one emergency callout |
Pricing note: all figures are starting prices excluding VAT. Final quotations follow a free site survey because the detector count, mounting requirements, and cable routes vary by property. Pricing current as at May 2026.
FAQs
How much does a burglar alarm cost to install in the UK?
A professionally installed domestic burglar alarm in the UK in 2026 typically costs £450 to £2,500 across the market. At J&L Security our standard wireless Grade 2 residential package using the Pyronix Enforcer V11 starts from £485 + VAT, including a control panel with on-board keypad, a wireless door contact, two motion detectors, two proximity tags, and a wireless external siren. Most homes specify additional detectors at the survey: motion detectors from £55 + VAT, door contacts from £45 + VAT, additional sirens from £125 + VAT. Smartphone control via the Homecontrol 2.0 app is a £48 + VAT add-on for the module and first year, then £30 + VAT per year. Optional 24-hour monitoring through our UK-manned call centre starts at £105 + VAT per year, with police response available where the system is graded and URN-registered. Final price depends on property size, detector count, and the specific options chosen.
Is a monitored alarm worth the monthly fee?
For most homeowners with average-value contents, a self-monitored system with smartphone notifications is sufficient. Monitoring is worth the monthly fee in three specific circumstances: (1) your insurer requires a monitored system as a condition of cover; (2) you want police-response eligibility under the URN scheme, which is only available for Grade 2+ systems monitored by an inspectorate-approved installer; (3) the property is left unoccupied for extended periods and there is no nearby keyholder. For higher-value properties (typically £100,000+ contents) the monitoring fee is often offset by an insurance premium reduction.
Do I need an NSI or SSAIB approved installer?
Yes, in two specific cases. (1) If you want police response eligibility, the system must be installed and maintained by an NSI or SSAIB approved company. (2) If your home insurance requires an "inspectorate-approved" system, the installer must hold one of the two accreditations. Beyond those cases, an inspectorate-approved installer is also a strong general quality signal, because the audits cover installation standards, technical competence, and ongoing training. J&L Security is SSAIB approved.
Will a burglar alarm reduce my home insurance premium?
Often, yes. Most major UK home insurers offer a discount of around 5 to 15 per cent on the contents premium for a professionally installed alarm. A monitored, inspectorate-approved system with police-response eligibility typically attracts the largest discount. The discount varies by insurer, by postcode, and by the contents value. Check with your insurer for the specific reduction available for the system you are considering, and ask whether the policy requires any particular standard before installation.
How long does a burglar alarm installation take?
A standard domestic installation takes 4 to 8 hours for a wireless system, or up to a full day for a wired installation in a finished property where cable runs need careful routing. Larger or commercial installations may take two days or more. We typically complete domestic surveys, design, and installation within 3 to 5 working days of the initial enquiry.
What does the standard J&L Security wireless burglar alarm package include?
The J&L Security standard wireless residential package starts from £485 + VAT and uses the Pyronix Enforcer V11 Grade 2 control panel. It includes the panel with an on-board mains-powered keypad, one wireless door contact for the main entrance, two wireless motion detectors, two proximity tags for arming and disarming, and one wireless external siren. The system is supplied as a "bells only" alarm by default, meaning the siren sounds at the property when triggered. Most customers add the Homecontrol 2.0 app module (£48 + VAT for the module plus the first year) so they can receive push notifications and arm or disarm remotely. Additional detectors, panic buttons, vibration sensors, dummy sirens, keyfobs, and an LCD keypad can be added at fixed accessory prices, with the final specification finalised at the free site survey.
How much does ongoing burglar alarm monitoring and maintenance cost with J&L Security?
J&L Security offers two ongoing options. The Homecontrol 2.0 app subscription is £30 + VAT per year after the first year (the module and first year are £48 + VAT) and gives the customer push notifications and remote control. Professional 24-hour monitoring through our UK-manned call centre starts at £105 + VAT per year and adds a call handler who contacts you when the alarm activates, with police response available for Grade 2 or higher systems registered for a Unique Reference Number. Annual maintenance starts at £120 + VAT for residential properties and £180 + VAT for commercial properties; both contracts include one routine service visit and one emergency callout within the contract year. All figures are starting prices.
Get a Quote
Burglar alarm pricing depends on too many factors to accurately quote without seeing the property. Every J&L Security installation starts with a free site survey: we visit the property, agree the system specification, and provide a fixed-price written quotation before any work starts. There is no obligation, and the survey itself is genuinely free.
To book a free survey, contact us or call 0204 538 5925 or 0208 220 4770. We cover all of Essex and Greater London, with active customers across Brentwood, Romford, Ilford, Chelmsford, Upminster, and across our 14 London target boroughs from Islington and Hackney through to Hammersmith, Battersea, and Barnet. For more on our intruder alarm offer, see our burglar alarm services page or read about insurance-approved burglar alarms in 2026.