Security installers across Northern Ireland.
At a glance
CCTV & Surveillance
4K cameras, day and night
Gates & Access Control
Automated entry, fobs and apps
Intruder Alarms
Wired, wireless, app-connected
Networks & Site Security
WiFi coverage, CCTV towers
Where Coast Data Security operates
Coast Data Security is a Northern Ireland security installer based on County Down, working across County Down, County Antrim, County Armagh and further afield. We install CCTV, electric gates, intruder alarms, access control, WiFi networks and construction site security, with a free site survey before any quote is given.
From our Castlewellan base
One installer, one van, the whole of the north.
Coast Data Security works from our Castlewellan base, on the edge of the Mournes in County Down, and covers the whole of Northern Ireland from there. Jobs within County Down and the neighbouring council areas are the bulk of the work: Newry, Mourne and Down, Ards and North Down, Lisburn and Castlereagh, and Armagh City, Banbridge and Craigavon. Belfast and the towns around it, Lisburn, Newtownabbey, Bangor and Newtownards, are a regular run, usually inside a day for a survey and again for the install.
Further out, towns such as Derry, Coleraine, Omagh, Enniskillen and Cookstown are covered too, though a job that far from base is usually scheduled alongside other work in the area rather than as a single same-day trip. If your town is not listed on this page, call the number below and ask. We travel across Northern Ireland and will tell you plainly if a job would suit a local installer better.
Finding the right page
How to use the pages below.
Each town below has its own page covering the property types, roads and local detail for that area, with links through to the specific service you need there, such as CCTV installation in Bangor or electric gates in Newry. If you already know which service you want, the services page groups the same information the other way round, by CCTV, gates, alarms, access control, WiFi and construction site security.
If your town is not one of the seventeen listed, look in the More Local Pages list further down. It covers villages and smaller places across County Down, County Antrim and beyond that our earlier site listed individually. Those pages are shorter, but the phone number and the free survey offer are exactly the same as on every other page on this site.
How a job runs
From enquiry to handover, wherever you are in Northern Ireland
- 1
Call or send the form
Tell us the town, the service you are thinking about and roughly what the property or site looks like. We will tell you honestly if it is something we can help with.
- 2
Free site survey
We visit the property, measure up, check power and access, and talk through the options. There is no obligation and no pressure to book on the day.
- 3
Written quote and scheduling
You get a clear, itemised quote and a realistic date for the work, fitted around any groundworks, power runs or other trades the job needs.
- 4
Installation
Our qualified installers fit and configure the system, whether that is one camera or a full CCTV, gate, alarm and access control setup across a site.
- 5
Handover and aftercare
We walk you through the controls, the app and any keypads or fobs, leave the paperwork, and stay available afterwards for servicing, upgrades or extra questions.
Coverage questions, answered.
What people ask before they pick a town.
Which areas does Coast Data Security cover?
We cover Northern Ireland from our base in our Castlewellan base, County Down, with the seventeen towns on this page as our main coverage area. Belfast, Newry, Lisburn, Armagh, Bangor and Newtownards are regular jobs, and further towns such as Derry and Omagh are covered too. Call to check your town.
My town is not listed here, do you still cover it?
Often, yes. The More Local Pages list further down this page covers smaller towns and villages we have worked in before, and we travel across Northern Ireland for CCTV, gates, alarms, access control, WiFi and construction site security. Call and ask, we will tell you plainly.
How much does a site survey cost?
Nothing. Every quote starts with a free, no-obligation site survey, whether that is for one CCTV camera at a house or a full system across a commercial site. You get a written, itemised quote afterwards with no pressure to proceed.
Do you only install CCTV, or the other services too?
All of them. Coast Data Security installs CCTV, electric gates, intruder alarms, access control, WiFi networks and construction site security, and the same team can combine several of these into one system and one app for your property.
Is a page for a small village different from a page for a big town?
The town pages, Belfast, Newry, Lisburn, Armagh, Bangor and Newtownards, go into local detail on roads, housing and industry. The More Local Pages list covers smaller places more briefly, but the phone number and the free survey apply to both.
Do rural jobs cost more than jobs in town?
We never quote by postcode. A rural farm with no power at the gate can cost more to automate than a townhouse, and a large commercial CCTV job can cost more than either. The site survey is what sets the price, not the address.
How do I know which service page to look at?
If you know the service, start on the services page and pick CCTV, gates, alarms, access control, WiFi or construction site security. If you know the town, start here and follow the links through to the service you need there.
Can gates, CCTV and an alarm all run from one app?
Yes, where the hardware supports it. Because we install CCTV, gate automation, alarms and access control ourselves, we can set several of them up to share one app and one login, rather than juggling separate systems from different installers.
Are your installers qualified and insured?
Yes. All Coast Data Security installers are fully qualified and carry comprehensive public liability insurance, on every job we do, in every town listed on this page and beyond.
What if I already have a system fitted by another company?
We can usually service, repair, upgrade or extend an existing CCTV, alarm, gate or access control system, whatever the town, rather than insisting on a full replacement. The site survey will tell you honestly what is worth keeping.
All coverage
Every town we work in
Seventeen main towns with full local detail, and dozens more from our earlier site below.
Areas we cover
- BelfastCounty Antrim
- NewryCounty Down
- LisburnCounty Antrim
- ArmaghCounty Armagh
- BangorCounty Down
- NewtownardsCounty Down
- LarneCounty Antrim
- BallymenaCounty Antrim
- LurganCounty Armagh
- NewtownabbeyCounty Antrim
- DungannonCounty Tyrone
- NewcastleCounty Down
- DerryCounty Londonderry
- ColeraineCounty Londonderry
- OmaghCounty Tyrone
- EnniskillenCounty Fermanagh
- CookstownCounty Tyrone
Browse by service
More local pages
- Aghagallon
- Aghalee
- Aldergrove
- Annahilt
- Antrim
- Ballela
- Ballycarry
- Ballyclare
- Ballyeaston
- Ballygowan
- Ballylesson
- Ballylinney
- Ballymacmaine
- Ballynahinch
- Ballynure
- Ballyrobert
- Ballyskeagh
- Ballystrudder
- Ballywalter
- Bangor
- Belfast
- Blackskull
- Carncastle
- Carrickfergus
- Carrowdore
- Carryduff
- Cogry Kilbride
- Comber
- Conlig
- Craigarogan
- Crawfordsburn
- Crossgar
- Crumlin
- Derrymore
- Doagh
- Dollingstown
- Donaghadee
- Donaghcloney
- Donegore
- Drinns Bay
- Dromara
- Dromore
- Drumbeg
- Drumbo
- Drumlough
- Dundonald
- Dundrod
- Dunmurry
- Edenderry
- Gamblestown
- Gawleys Gate
- Gibsons Hill
- Glenavy
- Glenoe
- Glynn
- Greenisland
- Greyabbey
- Groomsport
- Halfpenny Gate
- Helens Bay
- Hillhall
- Hillsborough
- Holywood
- Islandmagee
- Kells Connor
- Keshbridge
- Killead
- Killinchy
- Killyleagh
- Kilmore
- Kinallen
- Kircubbin
- Lambeg
- Larne
- Lisburn
- Listooder
- Loughinisland
- Lower Ballinderry
- Lurgan
- Lurganure
- Lurganville
- Maghaberry
- Magheraconluce
- Magheralin
- Magheramorne
- Mallusk
- Mazetown
- Mill Bay
- Millbank
- Millisle
- Milltown
- Moira
- Moneyreagh
- Mounthill
- Mullaghboy
- Newtownabbey
- Newtownards
- Parkgate
- Randalstown
- Ravernet
- Roughfort
- Saintfield
- Shrigley
- Spa
- Stoneyford
- Straid
- Templepatrick
- Tullynacross
- Upper Ballinderry
- Waringsford
- Waringstown
- Whitehead
- Whiterock
Get In Touch
Start your free quote
Tell us what you need. We respond within 24 hours.
Contact Details
Phone
02843441141
more@marioithelp.com
Address
11 Burrenreagh Road, Castlewellan, BT31 9HH
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Coast Data Security Ltd
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