Smart Home Security London — Ring, Arlo, Eufy, Reolink

Cloud (Ring, Nest, Arlo) if you want zero maintenance, a polished app, and you accept the £3.99–£15/mo subscription. Local NVR (Reolink, UniFi, Synology) if you want every byte to stay in your house, no ongoing fees, and longer retention. We install both. For households mixing Apple Home users and Android users, cloud tends to win on UX consistency. For privacy-conscious or technical users, local wins comfortably.

If your doorbell captures footage beyond your property boundary (pavement, neighbour drive, communal corridor) you are the data controller. Required: (1) a clear privacy notice published or available on request, (2) signage in shared/communal spaces, (3) a reasonable retention period (14–30 days is normal), (4) a process for subject access requests, (5) reasonable steps to minimise capture of neighbouring property. We supply the signage and document the policy at install.

They are different threat models. BS 3621 mechanical cylinder locks resist physical attack and are required by most home insurance policies for final-exit doors. Smart locks (August, Yale Linus, Aqara U200) add convenience — phone unlock, temporary access codes, audit log — but the smart layer is software with its own attack surface. We retain the BS 3621 mechanical cylinder on every install we do; the smart layer is additive, not a replacement. Always check your insurance policy wording.

Position cameras to capture your own property primarily. Use privacy-mask features (most modern IP cameras support polygon-based blackout zones over neighbouring windows or drives). Keep audio recording off where capture beyond your boundary is unavoidable. We design the install around this from the survey — it is not an afterthought.

Probably not on the existing house Wi-Fi. We install an outdoor-rated PoE Wi-Fi 6E access point on a Cat6a drop to the camera location, or run a Cat6a directly to the camera (cleaner). Wireless cameras at the edge of Wi-Fi range drop offline in bad weather and produce false-positive motion alerts — wired is reliable, wireless is the compromise.

PoE (power-over-ethernet) sends power and data over a single Cat6a cable — no separate 12V supply, no Wi-Fi dropouts, no batteries. PoE+ supports the higher-power 4K pan-tilt-zoom cameras and PoE++ supports thermal cameras. PoE NVR setups are the gold standard for any install above 3–4 cameras. Wi-Fi cameras win on retrofit simplicity for 1–2 doorbell + outdoor camera installs only.

Yes, in two ways. (1) Camera triggers — the camera detects motion and the alarm arms or sounds. (2) Alarm triggers — the alarm fires and the camera starts recording. SmartThings, Home Assistant and Hubitat handle this natively; Ring, Arlo and Nest have first-party integrations with select alarm systems. Pyronix, Honeywell and Texecom commercial-grade alarms integrate via SIA bridges — we configure on commissioning.

For domestic — usually no. Self-monitoring via push notifications is enough for most London households. For high-value properties, second homes, holiday lets and HMOs — professional monitoring (Banham, ADT, Verisure) adds keyholder response and police-grade URN response codes. Worth the £20–£50/mo for those use cases. We install the kit; the monitoring contract is yours to set up directly.

BS 8418 covers detector-activated remotely-monitored CCTV systems — the standard for commercial CCTV with police response. BS EN 50131 covers intruder and hold-up alarm systems — the standard for burglar alarms. They sit alongside each other. For commercial installs we follow BS 8418 for CCTV and BS EN 50131 for any alarm component. Domestic installs do not normally need either certification.

Cloud cameras: no — they need both power and internet. NVR cameras: yes, if you fit a UPS on the NVR and PoE switch. A 1 kVA UPS at the patch cabinet keeps the router, PoE switch and NVR running for 30–90 minutes — enough to record any intruder activity during a brief outage. We specify the UPS as part of the structured-cabling cabinet on most installs.