Guides ยท March 2026 ยท 5 min read

Start With Your Security Goals

Before looking at cameras, cables or NVRs, the most important step is understanding what you actually need your CCTV system to do. A corner shop in Belfast city centre has very different requirements to a logistics warehouse in Craigavon or a dental practice in Ballymena. Getting this right from the start saves money and ensures your system delivers genuine value.

Ask yourself these questions: What are you trying to protect? Who or what do you need to identify? Do you need to monitor in real-time or just review footage after an incident? How many entry points and vulnerable areas does your premises have? The answers will shape every decision that follows.

Indoor vs Outdoor Cameras

This seems straightforward, but there are important nuances. Outdoor cameras for Northern Ireland need to be properly weatherproofed โ€” look for IP67 ratings as a minimum. Our climate throws everything at external cameras: driving rain, frost, condensation and salt air if you're near the coast in Bangor or Portrush.

Indoor cameras can be smaller and more discreet. In retail environments, dome cameras mounted on the ceiling provide excellent coverage without being obtrusive. In offices and corridors, compact turret cameras offer a good balance of performance and aesthetics.

Camera Types: Dome, Bullet and PTZ

Dome Cameras

Dome cameras are the most popular choice for indoor commercial use. Their compact, ceiling-mounted design makes them less conspicuous and harder to tamper with. They're ideal for retail shops, restaurants, offices and reception areas. The dome housing also makes it difficult for people to tell exactly which direction the camera is pointing, which adds a psychological deterrent element.

Bullet Cameras

Bullet cameras are the workhorses of outdoor surveillance. Their elongated shape accommodates larger lenses and more powerful IR LEDs, giving them superior range compared to dome cameras. They're highly visible, which makes them excellent deterrents. We install bullet cameras on building exteriors, car parks, loading bays and perimeter fences across Northern Ireland.

PTZ Cameras

Pan-Tilt-Zoom cameras can rotate 360 degrees and zoom in on specific areas. They're ideal for large open spaces like car parks, warehouses and industrial yards. A single PTZ camera can cover an area that might otherwise need three or four fixed cameras. However, they're more expensive and the mechanical components mean they require more maintenance over time.

For most small to medium businesses in Northern Ireland, a combination of dome cameras indoors and bullet cameras outdoors provides the best balance of coverage, quality and value.

Storage: NVR vs Cloud

NVR (Network Video Recorder)

An NVR is a dedicated recording device that sits on your premises and stores footage on internal hard drives. This is the standard approach for professional CCTV systems and the method we recommend for most businesses. You own the hardware, there are no monthly fees, and your footage stays on your premises under your control.

Modern NVRs from Hikvision and Dahua support 4โ€“32 cameras, offer remote viewing via smartphone apps, and can accommodate multiple hard drives for extended storage. A typical 8-channel NVR with a 4TB hard drive will store approximately 14โ€“21 days of continuous recording from 8 cameras at 1080p resolution.

Cloud Storage

Cloud-based systems store footage on remote servers accessed via the internet. The advantage is that footage is safe even if your NVR is stolen or damaged. The disadvantage is ongoing monthly subscription costs, dependence on your internet connection, and potential privacy concerns about where your data is stored.

For most Northern Ireland businesses, we recommend an NVR-based system as the primary recording method, with cloud backup as an optional extra for critical cameras. This gives you the reliability of local storage with the security of off-site backup.

How Many Cameras Do You Need?

This depends entirely on your premises, but here are some general guidelines:

  • Small retail shop: 4โ€“6 cameras (entrance, till area, stock room, rear exit)
  • Medium office: 4โ€“8 cameras (reception, corridors, server room, car park)
  • Warehouse: 8โ€“16 cameras (loading bays, aisles, offices, perimeter)
  • Restaurant/pub: 6โ€“10 cameras (entrance, bar, dining area, kitchen, rear, car park)
  • Farm: 4โ€“8 cameras (yard, sheds, gates, fuel storage)

The key principle is to eliminate blind spots at critical points rather than trying to cover every square metre. A well-designed 6-camera system will outperform a poorly planned 12-camera system every time.

Budget Considerations

Professional CCTV systems in Northern Ireland typically range from ยฃ800โ€“ยฃ1,500 for a basic 4-camera residential system to ยฃ2,000โ€“ยฃ5,000+ for a comprehensive commercial installation. The main cost factors are the number of cameras, resolution (4K vs 1080p), cable run distances and any specialist requirements like ANPR or PTZ cameras.

We always recommend investing in quality equipment from established manufacturers like Hikvision and Dahua. Budget cameras from unknown brands may save money initially but often fail prematurely, produce poor footage and lack proper support and firmware updates.

Professional Installation vs DIY

While DIY systems are available, professional installation offers significant advantages for businesses: correct camera positioning based on experience, proper cable management and weatherproofing, optimised recording settings, configured remote access, and documentation for insurance purposes. A professionally installed system also comes with warranty support and the knowledge that it's been done right.

At Titan Surveillance, we offer free site surveys across Northern Ireland. We'll assess your premises, recommend the right system and provide a detailed, no-obligation quote. Call us on 028 92 013 082 to arrange yours.

Need Help Choosing a CCTV System?

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