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A CCTV system only helps when it captures a useful image at the moment you need it. A camera pointed at a wide driveway may show that somebody arrived, for example, but not provide a clear enough face or number plate to identify them. Knowing how to set up CCTV properly means planning the coverage, recording and network before the first camera goes on the wall.

For homes, the priority may be a front door, driveway, garden gate or shed. For a business, it is often entrances, reception, stock areas, loading points and car parks. The best setup is not necessarily the one with the most cameras. It is the one that covers genuine risks without creating blind spots, privacy concerns or a system that nobody checks.

Start with the areas you need to protect

Walk around the property in daylight and think about how someone could enter, leave or approach. Mark the doors, side passages, gates, vulnerable windows, outbuildings and areas where valuable stock or equipment is kept. For a business, also consider fire exits, till points, delivery doors and shared access routes.

It helps to separate your aims. Do you need to identify people at a doorway, monitor activity over a larger area, deter opportunistic crime, or check who has entered outside normal hours? One camera position rarely does every job. A wide-angle camera is useful for general oversight but can make faces appear small. A more focused camera near an entrance gives better identification.

Avoid mounting cameras so high that they only record the tops of heads. Positioning them around 2.5 to 3 metres high can deter tampering while still giving a useful viewing angle. Check for obstructions too: gutters, hanging signs, tree branches and security lights can all interfere with the picture over time.

Choose the right type of CCTV system

Most modern systems fall into two practical categories: wired IP CCTV and wireless CCTV. A wired IP system normally uses network cable, often with Power over Ethernet (PoE), so one cable supplies both power and data to each camera. It is usually the better choice for businesses and larger properties because it is stable, scalable and less dependent on Wi-Fi coverage.

Wireless cameras can be quicker to install where running cable is difficult. They can suit a small home setup, particularly for a single entrance or internal room. The trade-off is that each camera still needs reliable power unless it is battery operated, and poor Wi-Fi can cause delayed footage, lost connection or patchy recordings.

Battery cameras are convenient for temporary locations, but they are not always appropriate for continuous monitoring. Frequent motion events reduce battery life, while cold weather and weak signal can affect performance. For a driveway, shop entrance or commercial premises, a properly installed wired camera is often the more dependable long-term option.

You will also need somewhere to store footage. A network video recorder (NVR) is commonly used with IP cameras and stores recordings locally on hard drives. Cloud storage can be useful as a backup or for remote systems, but it may involve an ongoing subscription and relies on internet connectivity. Many users benefit from local recording with secure remote viewing, rather than relying solely on cloud storage.

Plan power, cabling and network capacity

Before drilling or fixing anything, establish how each camera will receive power and connect to the recorder or network. With PoE cameras, use suitable external-grade cable where it runs outdoors and protect cable routes from weather, accidental damage and tampering. Keep cables tidy, labelled and away from sources of electrical interference where possible.

For a business installation, allow for future growth. An eight-channel recorder may seem sufficient today, but adding an extra camera later is easier if there are spare recorder channels, switch ports and cable routes. This is particularly relevant for offices, warehouses and multi-site premises where security requirements can change.

Check the broadband connection if you plan to view cameras remotely. Recording locally does not usually place much demand on broadband, but viewing several high-resolution camera feeds away from the premises can require a good upload speed. Where the connection is limited, configure sensible video quality settings rather than assuming maximum resolution is always best.

How to set up CCTV cameras correctly

Install the recorder and network equipment in a locked, dry and well-ventilated place. A cupboard or comms cabinet is often preferable to an accessible desk or reception area. If the recorder is removed or switched off, the cameras may be of little use, so consider physical security as part of the installation.

Fit cameras securely to a solid surface and use suitable weatherproof fittings outdoors. Aim each camera, then check the live image before fully tightening it. At entrances, try to capture people approaching rather than only as they walk away. At vehicle access points, test whether the image is clear enough to read a number plate in the conditions you expect.

Night performance needs a separate check. Infrared cameras can work well in darkness, but reflective surfaces, nearby walls and glass can cause glare. Do not point an infrared camera through a window, as the infrared light often reflects back into the lens. External lighting may improve colour footage, but make sure it does not shine directly into the camera or disturb neighbours.

Set the date, time zone and daylight-saving settings accurately on the recorder. Incorrect time stamps can make footage harder to use when investigating an incident. Create named camera channels such as “Front Door”, “Rear Gate” or “Warehouse Loading Bay”, so footage is straightforward to find later.

Configure recording for useful evidence

Continuous recording provides the fullest record of activity, but it uses more storage. Motion recording saves space and can make events easier to find, although poorly configured motion detection can miss activity or create hundreds of alerts from rain, passing traffic or moving trees.

A practical approach is to use continuous recording for high-risk areas and motion recording for quieter locations. Draw motion zones carefully to exclude public roads, swaying vegetation and neighbouring properties where possible. Use person or vehicle detection when the camera system supports it, as this can reduce unnecessary notifications.

Decide how long you need to retain footage. The right answer depends on the premises, the level of risk and how quickly incidents are usually discovered. A home may need a shorter retention period than a business with stock, deliveries or staff access. Check storage calculations after the system has been running, because camera resolution, frame rate and activity levels all affect how quickly the recorder fills up.

Secure access and respect privacy

CCTV is part of your security, so it must not become a weak point in your network. Change all default usernames and passwords, use long unique passwords and enable multi-factor authentication where it is available. Keep the recorder, cameras and viewing app updated with manufacturer firmware. If possible, place business CCTV on a separate network or VLAN rather than mixing it with everyday staff devices.

Do not expose a recorder directly to the internet simply to enable remote viewing. Use the manufacturer’s secure access method, a properly configured VPN, or professional assistance to make sure the system is not left open to unauthorised access.

For UK households, cameras should be aimed mainly within your own boundary. If they capture a neighbour’s garden, shared access route or public pavement, data protection responsibilities may apply. For businesses, use clear CCTV signage, document the reason for monitoring and limit access to footage to authorised people. Audio recording is particularly intrusive and is rarely necessary for ordinary security monitoring, so it is generally best left disabled unless there is a clear, lawful reason to use it.

Test the system before relying on it

Once installed, test every camera in daylight and after dark. Walk through each monitored route, approach doors from different directions and check whether faces are recognisable. Test remote viewing from a mobile connection as well as from the local network. You should also confirm that recording continues after a power cut or router restart.

Set up alerts sparingly. A notification every time a car passes or a tree moves will soon be ignored. Start with key zones and adjust sensitivity over the first few weeks. Check recorded clips occasionally, not only after an incident, to make sure storage is working and the camera lenses remain clean.

For larger premises, professional installation can save time and avoid costly gaps in coverage. Anglian Internet can help local homes and businesses plan camera positions, network connectivity, recording and secure remote access as part of a complete CCTV installation.

A well-planned CCTV system should feel quiet and dependable: clear footage when it matters, secure access when you are away, and no surprises when you need to review an event.