Security services in Derry covering the north west.

Coast Data Security installs CCTV, electric gates, intruder alarms and access control in Derry and the wider Derry City and Strabane District Council area, also searched for as Londonderry. Surveys here are booked as a planned visit from our Castlewellan base, not a same-day call-out.

At a glance

Cityside terraces

Victorian streets inside the walls

Waterside estates

Housing across the Foyle

Springtown and Campsie

Industrial and retail units

Rural border fringe

Farms towards County Donegal

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CCTV Installation

HD & 4K camera systems with night vision, remote app viewing, and intelligent motion detection. Monitor your property from anywhere in the world.

See everything. Miss nothing.

WiFi Installation

Enterprise-grade wireless networks for homes and businesses. Thorough site surveys, professional installation, and complete coverage guaranteed.

No dead zones. Ever.

Gate Automation

Automated sliding and swing gates with remote control, intercom integration, and smartphone access. Security meets convenience.

Smart access. Total control.

Site Security

Rapidly deployable CCTV towers, solar-powered options, and temporary alarm systems designed for construction environments.

Protect your investment.

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Trusted Equipment Brands

What We Do

CCTV, gates, alarms and access control in Derry

Coast Data Security installs CCTV, WiFi networks, electric gates and construction site security across Derry and the rest of Derry City and Strabane. Pick a service for the local detail, or call 028 4344 1141 for a free, no-obligation survey.

Security installation in Derry, explained

Coast Data Security installs CCTV, electric gates, intruder alarms and access control for homes and businesses in Derry, within the Derry City and Strabane District Council area. Jobs on the Waterside, inside the city walls or out towards Strabane are surveyed free of charge and scheduled as a dedicated trip from County Down.

Local knowledge

A city built around the River Foyle.

Derry sits on the River Foyle in the north west of Northern Ireland, within the Derry City and Strabane District Council area and close to the border with County Donegal. The city is split by the river into the Cityside, inside and around the historic Walls, and the Waterside on the opposite bank, and it is policed through the PSNI's Derry City and Strabane district. Property here ranges from Victorian terraces close to the city centre to newer housing on the Waterside and rural homes and farms out towards Strabane and the Donegal border.

Springtown Industrial Estate and Campsie Industrial Estate, both on the edge of the city, hold much of Derry's commercial and light industrial floor space, and both sites see us for CCTV towers and access control as often as cameras on a single unit. The A6 links Derry to Belfast, the A5 runs south towards Strabane and Omagh, and the A2 follows the Foyle and the coast towards Limavady, so a survey visit here is planned around which road we are already using that week.

  • Cityside terraces and Waterside semis suited to discreet HD cameras and app-connected alarms
  • Springtown and Campsie units suited to wider CCTV coverage and controlled access
  • Rural entrances towards Strabane suited to sliding gates and solar power kits
  • Magee campus area student lets suited to intercom access control

Planning and travel

What to know before booking a Derry job.

Derry City and Strabane District Council covers planning inside the Walls and across the wider city, and the area within and close to the historic Walls carries conservation status, so a new gate, camera position or external alarm box there may need extra care. Across Northern Ireland, permitted development rules let you put up a gate or fence without planning permission provided it stays at or under one metre next to a road, or two metres elsewhere; taller than that and the council normally needs to approve it, which we flag at the survey so it can be checked before work starts.

Derry is around ninety five road miles from our Castlewellan base, so we do not offer a same-day call-out here the way we can closer to home. Survey visits and installations are booked in as a planned trip, often grouped with other Derry or Strabane enquiries in the same week, which keeps the job efficient and the quote fair. Larger jobs, such as a CCTV tower on a construction site or a multi-camera commercial install, suit this pattern well.

Fully Insured

Comprehensive public liability insurance on every job we do.

Insurance Approved

Systems that meet insurer requirements, potentially reducing premiums.

Expert Installation

Clean, professional work with full system configuration included.

Free Site Surveys

No-obligation quotes with detailed recommendations for your property.

Same-Day Response

Fast turnaround from enquiry to installation, minimising disruption.

Aftercare Support

Ongoing maintenance, upgrades, and responsive technical support.

Why us in Derry

A Northern Ireland installer that travels to Derry and the north west.

Coast Data Security is based in Castlewellan, County Down and works right across Northern Ireland, and Derry and the wider north west are part of that coverage rather than an afterthought. Because the drive is longer, we plan survey visits and installations here as a dedicated trip, which lets us bring the right kit for a CCTV tower, a gate motor or a full alarm system in one visit rather than several. Every installer is fully qualified and carries comprehensive public liability insurance, and every job in Derry ends with a walk-through of the system and how to use it.

How it works for a Derry job

From your call to a finished installation

  1. 1

    Call or enquire online

    Tell us what you need, roughly where the property or site is in Derry, and whether it is a home, a business or a construction site, so we can plan the visit properly.

  2. 2

    Survey visit booked as a trip

    We schedule a free site survey for Derry in advance rather than promising a same-day call-out, often alongside other enquiries in the north west, and confirm a date that suits you.

  3. 3

    Written quote

    You get a clear, itemised quote for the cameras, gate, alarm or access control system specified at the survey, with no obligation to go ahead.

  4. 4

    Installation

    Our installers travel to Derry for the fit, whether that is a single visit for a straightforward job or a longer stay for a larger commercial or construction site install.

  5. 5

    Handover and aftercare

    We show you the app, the controls and the alarms, leave you with the paperwork, and stay available by phone for servicing, upgrades or extra devices.

Testimonials

Rated 5.0 on Google

“Excellent service from start to finish. Professional, tidy work and the picture quality is outstanding. Highly recommend to anyone looking for a reliable security installer.”

Satisfied Customer

Google Review

“Brilliant job on our business premises. Marijus was very knowledgeable and helped us choose the right system for our needs. Great value for money and fantastic aftercare support.”

Local Business Owner

Google Review

Derry security questions, answered.

What people ask before booking a survey in Derry.

Do you actually cover Derry, or just advertise it?

Yes, we cover Derry and the wider Derry City and Strabane District Council area. It is a longer drive from our Castlewellan base than most of our work, so visits are booked in as a planned trip rather than a same-day call-out.

How much does a CCTV or alarm system cost in Derry?

The same as anywhere else we work: priced after a free site survey, based on the cameras or devices needed, the property and the access required. You get a written, itemised quote with no obligation.

How quickly can you get to Derry?

We do not offer a same-day call-out to Derry. Surveys and installations are scheduled in advance and often grouped with other jobs in the north west, so ask when you enquire and we will give you a realistic date.

Are your installers qualified and insured?

Yes. All installers are fully qualified and carry comprehensive public liability insurance, whether the job is in Derry, County Down or anywhere else we work in Northern Ireland.

Can you fit a CCTV tower on a construction site in Derry?

Yes. We supply rapidly deployable CCTV towers, including solar-powered options, for construction sites and compounds, which suit a longer distance job because one visit covers a larger area than a single domestic camera.

Is there power at my gate or camera position? I am not sure?

Many rural entrances around Derry and towards Strabane have no mains supply. We can run an armoured cable or fit a solar kit for gates and some camera positions, and the survey decides which is more reliable for your site.

Do I need planning permission for a gate near the Walls or in the city centre?

The area in and around Derry's historic Walls carries conservation status, so a new gate, camera position or alarm box there may need extra care. We flag this at the survey so you can check with the council first.

Can you work with the CCTV or alarm system I already have?

Often, yes. We can add cameras, extend an existing alarm, or connect a system to an app, and we will tell you honestly if a full replacement is a better option instead.

Do you cover Strabane and the villages around Derry as well as the city?

Yes. Derry City and Strabane is one council area and one part of our coverage, so Strabane and the surrounding villages are included in the same trip when we are in the north west.

What happens after installation if something goes wrong?

Aftercare, servicing and upgrades are part of the service wherever the job is, including Derry. Call the same number you used to book the survey and we will arrange a visit.

Do you cover businesses on Springtown and Campsie as well as houses?

Yes. Springtown and Campsie industrial estates are regular jobs for us, usually CCTV, access control or an alarm system for a commercial unit rather than a single domestic camera.

Is Derry the same as Londonderry for your coverage?

Yes. The city is officially named Derry and is also searched for and known as Londonderry. Either way, our coverage is the same: the city and the surrounding Derry City and Strabane District Council area.

Get In Touch

Start your free quote

Tell us what you need. We respond within 24 hours.

Contact Details

Phone

02843441141

Email

more@marioithelp.com

Address

11 Burrenreagh Road, Castlewellan, BT31 9HH

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