Sentinel5 designs and installs professional IP CCTV systems for businesses across Hertfordshire, Bedfordshire, Buckinghamshire and Greater London. We start with how your premises operate: who arrives, where deliveries happen, which areas need useful evidence and who will review the recordings. That gives your business a camera system with a clear purpose, rather than a collection of cameras chosen only by resolution.
Our commercial CCTV installation covers camera positioning, cabling, recording equipment, network configuration, secure remote viewing and handover. A new installation can be planned alongside your IT team, facilities manager or building contractor. If equipment is already in place, we can first assess what is worth keeping. The free commercial survey establishes the site requirements and the information needed for a written quote.
CCTV for warehouses
A warehouse needs more than a wide view from the roof. Loading bays, yard entrances, stock movements and pedestrian routes each need a different view. A high camera can show activity across a large space while still leaving faces or small items too distant to distinguish. We separate overview coverage from the closer views needed at doors and handling points.
Racking, parked trailers and changing stock heights can block a view that looked clear during installation. We discuss normal operations, night shifts and delivery patterns before agreeing camera positions. Access for future cleaning or repairs matters too: a camera above an active loading lane can require equipment and downtime to maintain. Our warehouse CCTV page explains how coverage and infrastructure can be planned together.
Retail CCTV
Retail camera systems should help a manager follow an incident through the shop. Entrances, till approaches, aisles and stock-room access need views that make sense together. We consider reflections from shop windows, bright entrances, display changes and how staff will find a recording. A camera above a till does not automatically capture the detail needed at the counter.
We can plan installation around trading arrangements and agree who can see live video, search recordings and export clips. Separating those permissions helps keep everyday use manageable. A clear handover includes a playback exercise rather than just showing the live screen. Read about retail CCTV installation for shops and stores.
Office CCTV
Office systems often focus on entrances, reception, car parks and shared access routes. A useful survey distinguishes the tenant's premises from areas controlled by a landlord or managing agent. We agree which spaces the system should cover, where cabling may run and who is responsible for the recorder and network.
Guest WiFi, staff devices and CCTV should be considered together when planning connectivity. Cameras need appropriate access to recording and management services without unnecessarily exposing them to everyone using the building network. Our office CCTV service includes practical coordination with your IT arrangements and authorised system users.
Hotel and hospitality CCTV
Hotels, restaurants and hospitality premises bring guests, staff, suppliers and contractors through the same building at different times. Entrances, reception, external spaces, car parks and back-of-house routes can be useful coverage points. The plan must also respect private areas and the expectations of people using the premises. Corridor coverage needs particular consideration of purpose and privacy.
We discuss discreet positioning, changing light levels and how footage will be reviewed by authorised managers. Audio is considered separately from video rather than assumed to be required. A practical hotel CCTV installation includes restricted access, agreed camera views and work scheduled around the operation of the premises.
Construction and temporary sites
Construction projects can need CCTV before permanent power or broadband is available. Gates, materials, plant storage and temporary compounds move as work progresses. The system should therefore have an agreed plan for mounting, power, recording and connectivity, with camera positions revisited when the layout changes.
Temporary CCTV hire can suit a project, refurbishment or vacant property. Mobile or wireless connections depend on the conditions at the actual site. Remote viewing does not itself mean an operator is watching the cameras: any monitoring or response requirement must be discussed and specified separately. For site planning, see construction site CCTV.
Multi-site CCTV
For businesses with several premises, consistency can make support easier. A common approach to camera naming, recording schedules, time settings and access permissions helps managers move between sites without relearning each system. Centralised remote viewing may be possible, depending on the chosen equipment and available connectivity at each location.
We discuss who needs local access, who needs an estate-wide view and how access should change when people leave. Health checking should cover recording as well as whether a device is online. Standardisation still needs to respect the differences between sites: a quiet office entrance and a busy delivery yard may need different lenses, lighting and storage settings.
4K IP CCTV: useful detail, in the right place
4K cameras can record more image detail than 1080p cameras when the lens, scene and settings support it. That can help with reviewing part of a wider image. Resolution alone does not guarantee identification. Camera distance, viewing angle, movement, exposure and available light all affect what the footage actually shows.
More pixels also need appropriate recorder capacity and network planning. We check the recorder's supported camera inputs and recording limits, rather than assuming its channel count tells the whole story. A lower-resolution camera in the right position can be more useful than a higher-resolution camera covering too much ground. Our 4K vs 1080p guide explains the trade-offs.
CCTV storage and retention
Storage is specified around an agreed recording target. Camera count, resolution, average bitrate, frame rate and recording activity all affect the capacity required. A busy scene can use more data than an empty room, and motion recording may save less space than expected on a site with constant traffic. Recorder capacity must be considered alongside those settings.
The retention period should come from your purpose for recording, not simply the largest disk available. There is no universal CCTV retention period prescribed by UK data protection law. See the ICO's retention guidance and discuss your organisation's policy with the person responsible for data protection.
We check recording, playback and time settings at commissioning. Longer-term retention should also be checked after enough days have passed to confirm the real recording history. Try our CCTV storage calculator for an initial estimate, then have the specification checked against the equipment and recording conditions.
Secure remote CCTV viewing
Remote access should be convenient for the people who need it and restricted for everyone else. We configure supported remote viewing arrangements, individual users where available and appropriate permissions for playback and exports. Strong passwords and supported multi-factor authentication form part of the access discussion. The chosen method depends on the recorder, app and business network.
Available upload bandwidth matters when several people view cameras away from the site. Lower-bandwidth viewing streams can make access more practical without changing the locally recorded main stream, where supported. We test remote access from outside the local WiFi and explain what happens if the internet connection fails. Read more about remote CCTV viewing.
The network infrastructure behind your CCTV
Modern CCTV depends on reliable network engineering. We plan Cat6 cable routes, cable lengths, termination and labelling with both installation and future maintenance in mind. PoE switches need enough power for the connected cameras, including the additional demand of features such as night illumination. A spare port is only useful if the switch also has spare power and capacity.
Managed switches and VLANs can separate camera traffic from staff and guest networks. The design must include the firewall rules and authorised management routes that make this separation effective. Fibre uplinks can be considered between buildings or across longer distances, with suitable equipment, routing and physical protection. We agree responsibilities where an existing IT provider manages the network.
A UPS can provide a period of power resilience for selected equipment, but runtime depends on the load and battery condition. Protecting only the recorder is of limited benefit if the camera switches immediately lose power. We look at the system as a whole, including internet bandwidth, secure remote access and accessible documentation. See our CCTV network and cabling service.
Maintenance after installation
Useful CCTV depends on continued recording, clean views and working access. Our CCTV maintenance and repair service can review cameras, NVRs, hard-drive health, time settings, firmware and remote viewing. We also discuss access changes and configuration records so that system knowledge does not leave with one member of staff.
For an existing system, inspection comes before a support commitment. Equipment condition, available credentials and manufacturer support affect what can be maintained. Planned servicing, larger-site arrangements and takeover work are quoted against an agreed scope.
Book a free commercial CCTV survey
Tell us the type of premises, postcode, operating hours and the areas you need to cover. If a system already exists, its camera count and recorder model are helpful starting points. We will discuss the requirements, arrange a survey and prepare a quote that sets out the equipment, installation work and handover. Book your commercial survey.
Improve an Existing Installation
An inherited system can be assessed through a CCTV takeover audit. If recording has stopped or views are missing, start with fault finding. Plan new views with the camera coverage guide, then compare cameras and installation options.