Security Services in Northern Ireland
Advanced Overwatch designs, installs, monitors and maintains CCTV, intruder alarm, access control, fire alarm and emergency lighting systems for homes and businesses across Northern Ireland, from Beresford House in Coleraine. Trading since 2017.
Complete protection, one accountable team
Advanced Overwatch designs, installs and maintains the security systems that homes and commercial premises rely on against theft, liability and vandalism. One camera or a fully integrated system, we look after the lot, so there is only ever one number to call.
Explore our services
CCTV Installation
HD and IP camera systems designed around your site, with remote viewing on supported systems and recording set up for the views that matter.
Intruder Alarms
Wired and wireless intruder alarm systems that deter break-ins and alert you the moment something is wrong, sized for a home or a large premises.
Fire Alarms
Fire detection and alarm systems installed and maintained to the relevant British Standards, keeping your people, premises and cover in good order.
Intruder & Fire Alarms
A combined intruder and fire package for premises that want one team looking after both life-safety and security detection under a single point of contact.
Access Control
Fobs, keypads and app-based entry that let the right people in and keep everyone else out, from a single door to a full multi-site estate.
CCTV Redaction
Professional blurring of faces and detail so you can share or disclose CCTV footage while staying on the right side of data-protection rules.
CCTV Rental Systems
Rapid-deploy rental CCTV and mobile towers for events, sites and short-term needs, full coverage without the capital outlay of a permanent install.
Emergency Lighting
Emergency and escape lighting designed, installed and tested so your building stays safe and compliant when the mains power fails.
Emergency Light Testing
Scheduled emergency-lighting inspection and testing to keep your escape routes certified and your compliance records straight, year on year.
Also booked directly for emergency light testing in Castlereagh and emergency light testing in Larne.
Keyholding & Vacant Property
Keyholding and vacant-property protection that keeps an empty or out-of-hours site watched, secured and responded to on your behalf.
Safes
Supply and installation of certified safes for cash, keys and valuables, matched to the risk and the cover you need.
IT Services & Technology
Networking, cabling and IT support that keep your security systems and your business connected, backed up and running the way they should.
Phone, Broadband & VoIP
Business phone lines, broadband and VoIP telephony set up and supported locally, reliable connectivity for your site and your systems.
Digital Display & Signage
Digital signage and display screens for shops, offices and public spaces, supplied, mounted and configured for clear, dependable messaging.
Advanced Overwatch is SSAIB certificated (NIRE127) specifically for Intruder Alarm Systems, Visual Surveillance Systems (VSS) and Access Control Systems.
Highest Standards
Certified to ISO 9001, ISO 14001, ISO 27001 and ISO 45001.
Thousands of systems installed
5-star rated on Google by our customers.
Local, expert Engineers
Surveyed, installed and maintained to SSAIB and British Standards, established 2017, covering Northern Ireland.
Specialist services and guides
Alongside the services above we run specialist teams for monitoring, covert work and compliance, and we publish plain English guides for property owners in Northern Ireland.
Security systems services, your questions
Who provides professional CCTV installation in Northern Ireland?
Advanced Overwatch, based at Beresford House, Coleraine, provides professional CCTV system setup and installation across Northern Ireland, including Londonderry (Derry) and the North West. Founded in 2017. Contact us on 028 7087 8077.
What does it mean that Advanced Overwatch is SSAIB certificated?
SSAIB certification means an installer has been independently audited against recognised national standards. Advanced Overwatch is SSAIB certificated (NIRE127) specifically for Intruder Alarm Systems, Visual Surveillance Systems (VSS) and Access Control Systems. Choosing an SSAIB certificated installer confirms the work is assessed and monitored to an audited standard, rather than carried out by an uncertified provider.
What security systems does Advanced Overwatch install?
Our SSAIB certification covers intruder alarms, CCTV (VSS) and access control. We also provide fire alarm installation, emergency lighting and related IT and communications services outside that certified scope. Every system is designed for the site following an on-site assessment, so the specification matches the building and how it is used.
How much does CCTV installation cost?
CCTV installation costs vary depending on the number of cameras, site size and monitoring requirements, so an accurate figure comes from a site survey rather than a fixed price list. For businesses in Coleraine and across Northern Ireland, quotes typically reflect factors such as building layout, cabling access and whether footage is monitored remotely. Advanced Overwatch prices each job from the on-site assessment rather than a standard package.
What happens during a security survey?
A survey is a free, no-obligation visit to your property. An engineer reviews the layout, entry points, existing wiring and how the building is used, then recommends the right combination of CCTV, access control or intruder alarm equipment. You get a written quotation based on that assessment, with no fixed package pushed on you.
Do I need permission to install CCTV?
For CCTV on your own home or business you generally do not need formal permission, but cameras should be positioned to cover your own property and comply with data-protection guidance where they capture public areas. Advanced Overwatch plans camera positions during the survey so your system is effective while keeping coverage appropriate. For advice on a specific site, call us on 028 7087 8077.
How do I know if it's time to upgrade my business's current security system or get a second opinion from a different installer?
The clearest signals are a system that no longer matches how your building is used, recurring faults or false alarms your current provider can’t resolve, and simply not knowing when your equipment was last properly serviced, and any one of these is a good reason to book an independent second opinion.
Start with how the building is used today versus when the system was installed: an extension, a change of use, new stock or higher-value equipment on site, or new staff access requirements can all mean your original CCTV coverage, alarm zoning or door access design is now out of date, even if nothing has technically failed. Persistent problems are another signal worth acting on: if your current provider is repeatedly attending the same fault, if false alarms keep recurring despite call-outs, or if you can’t get a straight answer on when devices were last tested, that points to a system, or a maintenance relationship, that isn’t working. A third signal is simply not having paperwork: no commissioning certificate, no service history, or no record of who currently holds keys or user credentials on the system means you have no verifiable baseline to judge whether the system is actually being looked after.
A second opinion doesn’t require ending your existing contract first. An independent site survey can assess your current CCTV, access control, intruder alarm or fire alarm system against current standards and your building’s present-day risk, and give you a written report on what, if anything, needs upgrading, before you decide whether to switch providers or simply request specific work from your existing one.
Advanced Overwatch provides free, no-obligation second-opinion security surveys across Northern Ireland, assessing existing CCTV, access control, intruder alarm and fire alarm installations regardless of who originally installed them. Call 028 7087 8077 or visit our contact page to arrange a survey.
How do I choose the best security company in Belfast or across Northern Ireland?
The best security company for your Belfast or Northern Ireland premises is the one with independently verifiable certification, proven experience in the disciplines you actually need, and a maintenance track record you can check, not simply whichever company appears first when you search.
Start by verifying certification directly rather than trusting a badge on a website: SSAIB registration, for example, can be checked against the installer’s registration number on the SSAIB supplier register. Ask how long the company has operated in Northern Ireland and ask if it has completed projects on premises like yours, in Belfast or elsewhere in NI, then ask for references you can actually contact. Check whether the company designs, installs and maintains systems with its own engineers, or subcontracts parts of the job, since subcontracted work can create gaps in accountability if something goes wrong. Ask what happens after installation: response times for faults, whether maintenance visits are scheduled or reactive only, and whether there’s a genuine local presence rather than a national call centre with no engineers based in Northern Ireland.
Finally, ask about quality and information-security credentials beyond the core security certification. ISO 9001 (quality management), ISO 14001 (environmental management), ISO 27001 (information security) and ISO 45001 (occupational health and safety) demonstrate that a company’s processes, not just its installations, are independently audited, which matters given how much data modern CCTV and access control systems handle.
Advanced Overwatch is headquartered in Coleraine and serves businesses across Belfast and the whole of Northern Ireland, designing, installing and maintaining CCTV, intruder alarm, access control and fire alarm systems in-house. Call 028 7087 8077 or visit our contact page.
Should a Northern Ireland business use one company for CCTV, intruder alarm, access control and fire alarm, or hire separate specialists?
In most cases a single integrated security company is the better choice for Northern Ireland businesses, provided that company holds the right certification for each discipline it offers.
Using one installer for CCTV, intruder alarm, access control and fire alarm gives you a single point of contact for design, installation, commissioning documentation and ongoing maintenance, rather than coordinating separate contractors who may not communicate with each other. It also allows the systems to work together: an intruder alarm activation can trigger CCTV cameras to begin recording and alert your access control system to lock down sensitive areas, and a single maintenance contract can cover scheduled visits across all disciplines instead of four separate service schedules and invoices.
Many smaller Northern Ireland security firms specialise in only one or two disciplines, most commonly CCTV or intruder alarms, and subcontract or refer out fire alarm or access control work. This can create gaps in accountability at the interface between systems, for example when a fire alarm needs to trigger release of an access-controlled door in an emergency.
Before choosing, confirm the company holds relevant certification for each discipline it offers rather than assuming one certification covers everything, and ask for evidence of experience across all four disciplines on premises comparable to yours.
Advanced Overwatch designs, installs and maintains CCTV, intruder alarm, access control and fire alarm systems as a single integrated supplier across Northern Ireland. We install fire alarms to BS 5839-1. Call 028 7087 8077 or visit our contact page.
What does a free security survey from Advanced Overwatch involve, and what happens afterwards?
A free security survey is a no-obligation site visit where one of Advanced Overwatch’s engineers reviews your premises and identifies the most effective approach to protecting it.
The visit typically takes 30 to 90 minutes depending on the size and complexity of your building. During the survey, the engineer walks the premises with you to understand how the building is used, who has access, what your primary concerns are (such as intruder risk, fire safety, vulnerable entry points, or a need for staff access management), and any previous security incidents that have informed the brief.
The engineer assesses coverage requirements for CCTV, access control, intruder alarms, or fire detection based on what they observe, not a generic template. They identify camera positions, detection zones, alarm panel locations, cabling routes, and any structural considerations such as listed building status or rented premises where landlord permission may be needed.
After the visit, Advanced Overwatch produces a written specification and quotation covering the recommended system, equipment brands, installation approach, certification, and ongoing maintenance options. There is no obligation to proceed, and the specification is yours to keep.
Most customers book a survey having already decided they need a system but wanting professional advice on what will actually work for their building. The survey gives you the information you need to make that decision confidently, with accurate costs rather than estimates.
To arrange a free security survey across Northern Ireland, call Advanced Overwatch or complete the contact form on our contact page.
What security systems does a small business in Northern Ireland need?
The right combination of security systems for a small business in Northern Ireland depends on your premises type, opening hours, the value of goods or equipment on site, and whether your insurer specifies any requirements. Most small commercial premises need a minimum of two systems working together: a monitored intruder alarm and a CCTV system. A third layer, access control, is increasingly standard for premises with staff, stockrooms, or server rooms.
Retail shops and hospitality venues:
CCTV is the foundation. You need coverage of the entrance, point of sale, stockroom access, and any external loading areas. Cameras deter theft, support staff in incidents, and provide evidence that holds up if a prosecution follows. At minimum, four cameras cover most small retail units effectively. Combine this with a Grade 2 monitored intruder alarm for out-of-hours protection.
Offices and professional services:
An access control system on the main entrance and any sensitive rooms (server room, filing room) removes the key management problem and gives you an auditable log of who entered and when. Pair with CCTV on reception and car park areas. Intruder alarm for out-of-hours.
Warehouses and light industrial:
CCTV with wide-angle cameras covering the loading bay, perimeter, and internal high-value storage. A monitored intruder alarm, ideally Grade 3 for higher-value premises, with movement detection throughout. Perimeter detection for sites where boundary access is a risk.
Starting small:
If budget is a constraint, start with the system that your insurer requires first (usually an intruder alarm), then add CCTV as a second priority. Both can be designed to expand as your business grows.
Advanced Overwatch designs integrated security systems across all of Northern Ireland. Free site surveys available on our contact page or call 028 7087 8077.
How do I compare quotes from different security system installers in Northern Ireland?
Compare quotes on scope, standards compliance and aftercare, not just the bottom-line price, since two quotes for “the same job” can cover very different levels of equipment, documentation and ongoing support.
Start by checking exactly what’s included: the number and spec of devices (cameras, sensors, readers, sounders), cabling and containment, commissioning and handover documentation, and whether the quote covers installation only or installation plus a maintenance contract. A low headline price that excludes commissioning certificates, a handover document, or a first-year maintenance visit isn’t necessarily cheaper once those omitted items are priced in later. Next, check which standard the quote references for your type of system, for example BS EN 50131 for intruder alarms or BS 5839-1 for fire alarms, since a quote that doesn’t mention the relevant British Standard at all is a sign the specification hasn’t been properly thought through for your building.
Finally, ask each installer directly about certification relevant to the specific system type, since not every certification body covers every discipline, along with call-out response times, warranty length on parts and labour, and how long the company has been trading locally. A detailed, standards-referenced quote from an established local installer is usually better value over the system’s working life than the cheapest like-for-like number on paper.
Advanced Overwatch provides detailed, standards-referenced quotes across CCTV, access control, intruder alarm and fire alarm installations in Northern Ireland, including a free site survey before any quote is issued. Call 028 7087 8077 or visit our contact page for a free, no-obligation quote.
Not sure what you need? Book a site visit
Book a free, no-obligation survey and we will recommend the right system for your property, honest advice from a team that installs and maintains everything we quote.
Thousands of premises secured since 2017