If you have searched for alarm companies near you in Northern Ireland, you have probably found a long list and very little to tell them apart. The single most useful filter is third-party certification. An alarm company should hold current certification from a UKAS-accredited body such as SSAIB or NSI, and it should be able to give you its certification number so you can check it yourself on the certification body’s public register. Everything else, price, response time, brand of kit, matters much less if that first check does not pass.
Advanced Overwatch is SSAIB certified under number NIRE127, covering intruder alarms, CCTV and access control. You can verify that on the SSAIB register rather than taking our word for it. We are based in Coleraine and have been installing security systems across Northern Ireland since 2017.
Here is what actually separates one alarm company from another, and the questions worth asking before you sign anything.
Why certification is the first thing to check
Anyone can print “alarm installer” on a van. Certification is the only part of the picture that has been independently audited.
SSAIB and NSI are the two main certification bodies for security installers in the UK. Both audit companies against recognised standards, and both publish a register you can search. When a company tells you it is certified, ask for the number, then look it up. A company that cannot produce a number, or whose number does not appear on the register, has told you what you need to know.
Certification also matters for a practical reason. Many insurers will only accept an alarm installed by a certified company, and some will ask for the certificate before they adjust your premium. If your reason for fitting an alarm is partly an insurance requirement, an uncertified installation may not satisfy it.
Check the scope as well as the number. Certification is granted for specific disciplines, not as a blanket approval. A company certified for intruder alarms is not automatically certified for fire alarms, and the register will tell you which is which. Our own SSAIB scope covers intruder alarms, CCTV and access control. We install fire alarm systems to BS 5839-1 as well, but we do not hold SSAIB certification for fire, and we say so plainly rather than letting one certification imply the other.
Local or national: does it make a difference?
It makes a difference to the part you will care about most, which is what happens after the install.
National providers tend to be strong on brand recognition and weaker on the follow-up. If a detector starts false alarming at 3am in Omagh, the question is who actually comes out, how far they are travelling, and whether they know your system. A subcontracted engineer who has never seen your property is a slower conversation than an engineer from the company that designed it.
That said, “local” is not automatically better. A one-person operation is local, but it also has no cover when that person is on holiday or leaves the trade. What you want is a company close enough to reach you and large enough to have more than one engineer.
Advanced Overwatch works from a single base in Coleraine and covers Northern Ireland from there. We run regional contact numbers so you are not paying to ring across the province, for Belfast on 028 9099 3566, Derry/Londonderry on 028 7187 8123, Magherafelt on 028 7966 8330 and Omagh on 028 8288 8166. Those are contact numbers rather than separate branches, and our engineers travel out from Coleraine.
The subscription question most people miss
This is the one that costs people the most money over time, and it rarely comes up until the contract is in front of them.
Some alarm companies sell the system cheaply and recover the money through a monthly subscription you cannot cancel without losing functionality. Some tie the app, the notifications, or even the ability to arm and disarm remotely to an ongoing fee. Others charge a monthly amount for monitoring, which is a genuine service, but bundle it with fees that are not.
Ask three questions before you commit:
- What stops working if I stop paying?
- Is the monthly fee for monitoring, for the app, or for the hardware?
- Do I own the equipment at the end, or am I renting it?
Monitoring itself is a real service and worth paying for if you want a monitoring centre to respond when the alarm activates. The problem is not monthly fees. The problem is monthly fees for things that should not need them.
Our own position is that you own the system and the app works without a subscription. If you want monitoring, that is a separate decision you make on its merits, not a condition of the alarm functioning.
Questions worth asking any alarm company
Take this list to whoever you are considering, including us.
What is your certification number and what is its scope? You should get an immediate answer and be able to verify it on a public register.
Who answers the phone if something goes wrong on a Sunday? You are asking whether support is in-house or subcontracted.
Is the quote for a system designed around my property, or a package? A survey should happen before a price. If someone quotes over the phone without seeing the building, they are selling you a box, not a system.
What happens to my data? Alarm systems with apps and cameras handle personal data. Ask how it is stored and who can access it. We hold ISO 27001 for information security, alongside ISO 9001, ISO 14001 and ISO 45001.
Can I speak to a customer with a similar property? A company doing good work will have someone willing to say so.
What are the false alarm procedures? False alarms are the most common ongoing frustration with any system. Ask how they are diagnosed and whether call-outs to fix them are chargeable.
What a good installation actually involves
A properly designed intruder alarm is not a list of parts. It is a plan for how someone would actually get into your property.
The survey should cover entry points, internal layout, where people and pets move at night, and which areas need to stay armed while you are inside. Detector choice follows from that. Pet-tolerant detectors in a house with a dog, external detection where you want a warning before entry rather than after, door contacts where forcing is likely.
Grading matters too. Intruder alarm systems are graded by risk, from Grade 1 for low risk domestic up to Grade 4. A domestic property is usually Grade 2. A commercial premises with attractive stock may be Grade 3, and your insurer may specify the grade in writing. A company that does not mention grading has not asked what your insurer requires.
We design and install systems from Ajax, Texecom, Pyronix, Orisec and Honeywell, chosen to suit the property rather than because we buy one brand in bulk. Wireless systems from Ajax suit occupied homes where cabling is disruptive. Wired systems still make sense in new builds and commercial fit-outs where the cable can go in before the plaster.
We do not recommend self-installation. A self-fitted alarm will not satisfy an insurer that requires certified installation, and detector siting is the part that most often goes wrong.
Related questions
How much does an alarm system cost in Northern Ireland?
It depends on the size of the property and the grade required, which is why any company quoting before a survey is guessing. The variables that move the price are the number of detectors, whether the system is wired or wireless, whether you want monitoring, and the grade your insurer specifies. A small domestic system is a very different job from a Grade 3 commercial installation with multiple areas. The more useful question is not what it costs but what is included: ask whether the price covers the survey, the certificate, the handover, and the first service, or whether those arrive later as separate invoices. Ask also what the system costs to own over five years, not just to install, because that is where subscription models change the answer considerably.
Do I need a monitored alarm or is an audible one enough?
An audible alarm sounds a siren and sends a notification to your phone. A monitored alarm also sends the signal to a monitoring centre that follows an agreed escalation procedure, which may include contacting keyholders or requesting a police response. Whether you need monitoring depends on who is nearby and what your insurer expects. If your property is isolated, or if nobody would respond to a siren, an audible-only system is largely a deterrent. If neighbours would call you, or you are usually close by, audible with app notifications may be enough. Some insurers specify monitoring for commercial premises or higher-value contents, so check the policy wording before deciding.
Can I keep my existing alarm and just change companies?
Often yes, though it depends on the system. Many panels can be taken over by another certified company, reprogrammed and recertified, which is cheaper than a full replacement. Some proprietary systems are locked to the installer, which is worth knowing before you buy one. If you are unhappy with your current provider, ask a new company whether a takeover is possible before you accept a quote for a complete new system. We will tell you honestly if your existing panel is worth keeping, because a takeover and a service contract is a better outcome for both of us than selling you hardware you did not need.
Standards explained
SSAIB is the Security Systems and Alarms Inspection Board, one of the UK’s main certification bodies for security installers. It audits companies against relevant standards and publishes a public register of certified providers. Our certification number is NIRE127.
UKAS is the United Kingdom Accreditation Service, the national accreditation body. It accredits the certification bodies themselves, so “UKAS-accredited certification body” means the auditor has itself been audited.
Intruder alarm grading (Grades 1 to 4) classifies systems by the level of risk they are designed to counter. Grade 1 is low risk, Grade 4 is high risk. Domestic properties are typically Grade 2, and commercial premises are often Grade 3. Insurers frequently specify a minimum grade.
ISO 9001 is the international standard for quality management systems. ISO 14001 covers environmental management. ISO 27001 covers information security management, which matters for any system handling footage or personal data. ISO 45001 covers occupational health and safety. Advanced Overwatch holds all four.
BS 5839-1 is the British Standard for fire detection and fire alarm systems in non-domestic premises. It is referenced here only to be clear about scope: it is a fire standard, separate from intruder alarm certification.
If you want a straight answer about your property rather than a package price, we will survey it and tell you what it actually needs. Call us on 028 7087 8077, email info@advancedoverwatch.com, or find us at 1st Floor Beresford House, 2 Beresford Road, Coleraine, BT52 1GE.
SSAIB Certified Company: NIRE127. ISO 9001, 14001, 27001, 45001 Certified.
