Security that never sleeps.
CCTV. WiFi. Gate Automation. Construction Site Security. Professional installation across Belfast and Northern Ireland.
CCTV Systems
4K HD Cameras
WiFi Networks
Full Coverage
Gate Automation
Smart Access
Site Security
24/7 Protection
CCTV Installation
HD & 4K camera systems with night vision, remote app viewing, and intelligent motion detection. Monitor your property from anywhere in the world.
- HD & 4K Resolution
- Remote App Access
- Cloud Storage
- Night Vision
- Motion Alerts
- Weather-Proof
See everything. Miss nothing.
WiFi Installation
Enterprise-grade wireless networks for homes and businesses. Thorough site surveys, professional installation, and complete coverage guaranteed.
- Full Coverage
- Mesh Systems
- Speed Optimised
- Enterprise-Grade
- Data Cabling
- Secure Setup
No dead zones. Ever.
Gate Automation
Electric gate installation for automatic sliding and swing gates, with remote control, intercom integration and smartphone access. Security meets convenience.
- Sliding & Swing
- Intercom Ready
- Keypad Entry
- Remote Control
- Safety Sensors
- App Control
Smart access. Total control.
Site Security
Rapidly deployable CCTV towers, solar-powered options, and temporary alarm systems designed for construction environments.
- Rapid Deploy
- Remote Monitoring
- Access Control
- Solar Powered
- Intruder Alarms
- Time-Lapse
Protect your investment.
Trusted Equipment Brands
What We Do
Complete Security Solutions
From homes to construction sites, we deliver professional installations that protect what matters.
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.
What We Do
Your trusted security partner.
Coast Data Security Ltd delivers expert security installations across Belfast and Northern Ireland. Led by Marijus Kumzaitis, we bring a consultative approach to every project.
Whether you need a residential camera system or comprehensive commercial security, we design bespoke solutions using industry-leading brands like Hikvision, Dahua, Pyronix, and Uniview.
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
Common Questions
Quick answers to help you make the right decision.
How much does a CCTV installation cost?
A basic two-camera residential system starts from around £450 including installation. We provide free site surveys and detailed quotes so you know exactly what to expect.
Can I view my cameras remotely?
Yes. Every system includes free mobile app access for live viewing and playback from anywhere in the world. We set everything up and show you how to use it.
Do you install wired and wireless systems?
Both. Wired for new builds and renovations, wireless for existing properties with minimal disruption. We recommend the best approach during our free site survey.
What is the difference between monitored and unmonitored alarms?
Monitored alarms connect to a 24/7 Alarm Receiving Centre that contacts you or the PSNI. Unmonitored alarms sound a siren and send phone notifications.
Will a security system reduce my insurance?
Many insurers offer premium reductions for professionally installed CCTV and monitored alarms. We provide installation certificates for your insurer.
How long does installation take?
Most residential CCTV (2-4 cameras) is completed in one day. Alarm systems take 4-6 hours. Larger commercial projects may take 2-3 days.
Do systems work during power cuts?
All alarm systems include battery backup (12-24 hours). We also offer UPS units for CCTV and solar-powered options for construction sites.
What brands do you install?
Hikvision, Dahua, Uniview for CCTV. Pyronix and Texecom for alarms. Paxton for access control. CAME and BFT for gate automation.
Can you install WiFi in large buildings?
Yes. We design and install enterprise-grade WiFi for residential homes, commercial buildings, warehouses, and outdoor areas with complete coverage.
How does electric gate automation work?
Electric motors controlled via remote fobs, keypads, intercoms, or smartphone apps. Safety sensors prevent accidents. Annual maintenance recommended.
Do you provide construction site security?
Yes. Rapidly deployable CCTV towers, solar-powered options, temporary alarms, and access control. Systems relocate as your site progresses.
Are your installers qualified?
All installers are fully qualified and carry comprehensive public liability insurance. Every job meets the highest professional standards.
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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