Advanced Overwatch installs, monitors and maintains burglar alarm and intruder alarm systems for homes and businesses across Derry, Londonderry and the wider North West. We are SSAIB-certified under registration NIRE127, with intruder alarms formally within our accredited scope.
Derry is Northern Ireland’s second city, home to around 85,000 people and a rapidly diversifying economy: the historic Walled City retail and hospitality core, the Ebrington creative and events quarter, a growing technology and fintech presence around Fort George and Ulster University’s Magee campus, and a wide rural and cross-border catchment stretching into County Donegal. That mix means an alarm specification for a listed building on Shipquay Street looks nothing like one for a Fort George office or a farmhouse outside Claudy.
Derry contact number: 028 7187 8123
Email: info@advancedoverwatch.com
Free site survey: advancedoverwatch.com/quote
Why Derry Homes and Businesses Choose a Professional Alarm
Derry City and Strabane District Council covers a large geographic area with a genuinely mixed property profile: dense Georgian and Victorian terraces inside and around the Walled City, modern commercial units in the Ebrington and Fort George developments, retail units around Foyleside and the Craft Village, student and short-let accommodation serving Magee campus, and a substantial rural hinterland running out towards Limavady, Strabane and the Donegal border.
A professionally installed and maintained burglar alarm is one of the most consistently effective deterrents against opportunistic break-ins, and for commercial premises it is frequently a condition of contents and stock insurance cover. A monitored system adds a verified response layer: when the alarm activates, an alarm receiving centre (ARC) confirms the signal and, where the system is registered under a Unique Reference Number (URN), can request PSNI attendance under the agreed response protocol.
Burglar Alarm Systems We Install in Derry
Wireless alarm systems (Ajax) suit the majority of Derry properties, particularly period buildings in and around the Walled City where chasing cables into original stonework is neither practical nor desirable. Ajax sensors are battery-powered, communicate over encrypted radio links, and connect to a mobile app for arm, disarm and real-time alert control from anywhere.
Wired alarm systems (Texecom) are better suited to new-build commercial premises around Ebrington and Fort George, larger retail units, and any site already carrying cable first-fix. Wired systems remain the preferred specification for many commercial insurance policies on larger sites.
Hybrid systems combine a wired backbone with wireless sensors in awkward-to-cable areas, a common solution for extensions and partial upgrades to an existing Derry property.
Monitored alarms with ARC connection provide 24-hour monitoring and a verified PSNI response route where the property qualifies, suitable for commercial premises holding stock or cash, second homes, and any property where the owner is not routinely on site to respond to a local sounder.
All systems are designed and installed in line with current European and British Standards for intruder alarm systems, and specified to the security grade (EN 50131 Grade 2 or Grade 3) your insurer or ARC requires.
Heritage and Listed Buildings in the Walled City
Derry’s Walled City contains a significant number of listed and locally listed buildings, and heritage status affects how (not whether) an alarm can be installed. External sounders, box positioning and any visible cabling on a listed facade may need to be agreed with Derry City and Strabane District Council in advance. Our engineers plan installations around these constraints during the free survey, using discreet wireless sensors and sympathetic cable routing wherever a heritage building is involved.
Areas We Cover Near Derry
Our engineers cover Derry city centre, the Walled City, Waterside, Ebrington and Fort George, and the surrounding North West including Limavady, Strabane, Claudy, Eglinton and the rural hinterland towards the Donegal border. We also cover cross-border properties in County Donegal, including Buncrana, Moville and Letterkenny, by arrangement.
SSAIB-Certified, ISO-Accredited
Advanced Overwatch is SSAIB-certified (registration NIRE127), with intruder alarm installation formally within scope. We also hold ISO 9001, ISO 14001, ISO 27001 and ISO 45001 certification, covering quality management, environmental responsibility, information security and occupational health and safety. We have been installing security systems across Northern Ireland since 2017, working from our Coleraine base with regional contact numbers, including 028 7187 8123 for Derry and the North West.
Frequently Asked Questions
How much does a burglar alarm cost in Derry?
Domestic burglar alarm installations in Derry typically start from around £450 for a wireless bells-only system covering an average three-bedroom home, including control panel, keypad, motion detectors, door contacts and external sounder. A monitored alarm with ARC connection and smart app control usually falls in the £700 to £1,200 range depending on property size and the number of detection points. Commercial installations, including those around Ebrington and Fort George, are quoted after a free site survey.
Can I get an external sounder fitted on a listed building in the Walled City?
Yes, but the position and appearance of the box, and any visible cabling, may need to be agreed with Derry City and Strabane District Council if your property has listed status or sits within the Walled City conservation area. In most cases our engineers can specify a discreet wireless system with minimal external visibility, and we flag any heritage considerations during the free survey rather than after installation.
What is a monitored alarm and how does PSNI response work in Derry?
A monitored alarm connects to an alarm receiving centre (ARC), staffed 24 hours a day, which receives the activation signal within seconds and contacts you and any nominated keyholders. Where the system is SSAIB-installed and registered with PSNI under a Unique Reference Number (URN), and the activation is confirmed under the standard two-signal verification protocol, the ARC can request police attendance. This is particularly valuable for commercial premises around Foyleside and Fort George, and for second homes or rural properties where the owner is not always on site.
Standards Explained
SSAIB certification is third-party accreditation confirming that a security company’s installation processes, staff vetting and ongoing service standards meet independently audited criteria. Advanced Overwatch holds SSAIB registration NIRE127, with intruder alarms, CCTV and access control within scope.
EN 50131 security grading classifies intruder alarm systems by the level of risk they are designed to resist, from Grade 1 (low risk) to Grade 4 (high risk). Most domestic installations in Derry are specified to Grade 2, while commercial premises holding stock or cash are frequently required by their insurer to specify Grade 3. Your installer and, where relevant, your insurer or broker will confirm the grade required for your property.
Get in Touch
Advanced Overwatch installs and maintains burglar alarm systems across Derry, Londonderry and the wider North West, including cross-border coverage into County Donegal.
Call 028 7187 8123 or email info@advancedoverwatch.com to arrange a free site survey.
Advanced Overwatch, SSAIB Certified (NIRE127) | ISO 9001, 14001, 27001, 45001 | Established 2017
