Commercial CCTV maintenance should be treated like preventative risk control; it protects evidence quality, reduces blind spots and keeps operational monitoring dependable. For sites in Tring, Hertfordshire, this matters because a system that looks fine on a monitor can still fail during playback, export or incident review. A common cause of repeat faults is connectivity. Servicing checks include confirming network and PoE stability, reviewing switch and port behaviour where accessible, and testing for intermittent link drops that create cameras offline or unstable feeds. This structured approach helps separate a camera fault from an upstream issue such as cabling, power, network configuration or a recorder port problem. Finally, we review the configuration that often causes hidden problems. Time and date accuracy is checked because it affects evidence review and incident timelines. Recording schedules and motion settings are reviewed to reduce missed footage or unnecessary storage load. Where remote viewing is used, we verify secure access and user permissions so managers can view live and recorded footage reliably without weakening security controls. All checks are carried out by NICEIC-approved engineers with a commercial-first mindset, aligned with BS EN 62676 expectations where applicable. The goal is not to sell changes; it is to confirm what is working, identify what is drifting, and give you clear, practical next steps. The result is better confidence in monitoring, fewer surprises, and a system that is more likely to deliver usable footage when incidents occur.