Home Security Systems: The Complete UK Installer's Guide 2026
Most homeowners do not want five apps, three subscriptions and a doorbell that argues with the alarm. They want to know who is at the door, get a photo when something moves at 3am, hear the smoke alarm wherever they are, and not worry about the house while they are away. This guide sets out a complete UK home security systems specification for installers and for homeowners planning a proper system: HiLook and Hikvision CCTV for the front, drive and garden, an Ajax wireless intruder alarm graded for UK police response, a video doorbell or door entry kit, smoke, heat, carbon monoxide and leak detection, and Reyee mesh Wi-Fi that keeps it all online — plus the ICO rules on pointing cameras at the street and the neighbours.
What this guide covers
- The five layers of a home security system and which product does each job
- CCTV: HiLook ColorVu 3.0 turrets and domes, Hikvision AcuSense, IP for new wiring or Turbo HD over existing coax
- Doors: the Ajax DoorBell or a Hikvision IP door entry kit
- Intruder alarm: Ajax Hub 2 kits, PD 6662 Grade 2, pets and police response
- Life safety: Ajax FireProtect 2 smoke/heat/CO, BS 5839-6 and the 2022 rented-home rules, LeaksProtect for escape of water
- Networking: Reyee mesh Wi-Fi, default passwords and the PSTI regime
- Privacy: what the ICO says about home CCTV that sees past the boundary
- Three reference builds, a DIY-versus-installed comparison, a handover checklist and eight FAQs
What is a home security system in 2026?
A home security system in 2026 is a set of connected devices — cameras, an intruder alarm, a door camera, life-safety detectors and the network that links them — managed from as few apps as possible and designed around how the household actually lives. The products have converged: cameras now classify people and vehicles, alarm detectors take photos, doorbells talk to alarm hubs, and smoke detectors report to the same phone as the burglar alarm. What has not converged is the installation. A camera from one shop, an alarm from another and a doorbell from a third rarely share notifications, users or a single point of support.
The installer's value is turning that pile of gadgets into one system: the right camera on the right wall, detectors placed so the dog does not set them off, every device on a network that stays up, and a handover where the customer knows who to call. That is the approach this guide follows, using products Netview stocks in Leicester from Hikvision, HiLook, Ajax and Ruijie Reyee.
What the figures say about risk to UK homes
Burglary is falling but has not gone away, and water damage is now a bigger day-to-day risk to most homes than intruders. The Office for National Statistics' Crime in England and Wales: year ending March 2026 bulletin reports that police recorded burglary fell by 9% to 223,456 offences across residential and non-residential properties, and notes that police figures are a good guide to well-reported crimes such as residential burglary. That is still several hundred break-ins every day — and every one of them is a household that wishes it had a camera with a usable face on it.
The insurance data points the same way for leaks. An analysis of UK home insurance claims by GoCompare put escape of water at almost one in three home insurance claims, making it the most common claim type. For an installer, that is the case for adding leak and fire detection to every alarm quote: they share the same hub, the same app and the same commissioning visit.
The five layers of a home security system
A complete home system has five layers — see, detect, answer, protect life and connect — and each layer has a product that does that job better than any all-in-one gadget. Use this table to scope a home before you quote it.
| Layer | Job it does | Typical products |
|---|---|---|
| See — CCTV | Evidence-grade video of the front, drive and garden, with person/vehicle alerts | HiLook IPC-T249HAA-LU, IPC-D149HAA-LU; Hikvision DS-2CD2347G3-LIS2UY/SL; DS-7604NXI-K1/4P(D) NVR |
| Detect — intruder alarm | Raises the alarm before anyone is inside, sounds sirens, alerts phones or a monitoring centre | Ajax Hub 2 kits, MotionProtect U, MotionCam U, DoorProtect Plus U, StreetSiren DoubleDeck |
| Answer — front door | See and speak to visitors from anywhere, record parcel deliveries | Ajax DoorBell; Hikvision DS-KIS604-P(C) or DS-KIS613-S door entry kits |
| Protect life — fire, CO, leaks | Smoke, heat and carbon monoxide warnings; early warning of escape of water | Ajax FireProtect 2 RB / SB, LeaksProtect |
| Connect — network | Whole-home Wi-Fi and a stable path for cameras, doorbell and alarm to reach the apps | Reyee RG-M32 mesh, RG-EW1800GX-PRO, RG-EW7200BE-PRO |
Not every home needs all five on day one, but designing for all five avoids the classic mistake: a camera system with no alarm, or an alarm that cannot see what triggered it.
CCTV cameras for the front, drive and garden
For most UK homes, three or four 4MP turret cameras — front door, driveway, rear garden and side passage — give better results than one high-resolution camera trying to see everything. The HiLook IPC-T249HAA-LU ColorVu 3.0 turret is the volume choice: according to the IPC-T249HAA-LU datasheet the 2.8mm version records at 2560 × 1440 with a 95.7° horizontal field of view, uses Motion Detection 3.0 to classify people and vehicles, and has a built-in microphone. Its matching IPC-D149HAA-LU ColorVu 3.0 dome suits a porch soffit where a vandal-resistant dome looks tidier than a turret.
Where a single camera must cover a wide plot or a long driveway, step up to 8MP. The HiLook IPC-T280HA-LUF/SL adds a strobe, a speaker for two-way audio and 4K resolution, while the IPC-T280HAD-LUF/SL 180° panoramic camera mounted on a corner can replace two turrets on the back of a detached house. For installers who want Hikvision's own range, the Hikvision DS-2CD2347G3-LIS2UY/SL brings hybrid light, a speaker and alarm I/O to the front of the house, and the DS-2CD2386G2H-IU 8MP AcuSense turret is the step up where the customer wants 4K detail across a large garden. Our HiLook CCTV buyer's guide and Hikvision camera buyer's guide cover the full ranges.
Inside the home, cameras are optional and should be the customer's choice rather than a default. The HiLook IPC-C340HA-D/W Wi-Fi cube camera suits a hallway or a holiday-home living room where running cable is not an option; most families prefer to keep cameras out of bedrooms and bathrooms altogether.
IP or Turbo HD: new cabling or the old coax?
If the house has no cameras yet, fit IP cameras on Cat6 with a PoE NVR; if it already has old analogue CCTV on coax, Turbo HD lets you upgrade the cameras and recorder without rewiring. On a new install, one Cat6 run per camera carries power and video, and the recorder does the rest. On an existing system, the HiLook THC-T259-MS 3K ColorVu turret drops onto the existing coax, and a HiLook DVR-204U-M1/T 4-channel AcuSense DVR or DVR-208U-M1(C) 8-channel DVR replaces the old recorder in the loft. The customer gets full-colour night images and people/vehicle alerts on their phone for a fraction of the disruption of a rewire.
| Question | IP (PoE NVR) | Turbo HD (DVR) |
|---|---|---|
| Best for | New builds, renovations, first-time systems | Homes with existing coax CCTV |
| Cable | Cat6, one run per camera | Existing RG59 / shotgun coax |
| Power | PoE from the NVR | Existing PSU or power cores |
| Upgrade path | Mix 4MP and 8MP freely, add cameras via a switch | Swap cameras one at a time on the same cable |
| Netview picks | IPC-T249HAA-LU + DS-7604NXI-K1/4P(D) | THC-T259-MS + DVR-204U-M1/T |
Our guide to upgrading old CCTV without rewiring walks through the retrofit in detail.
Recording, storage and the phone app
A home system should record to a local recorder and be viewed through the app, so footage survives a broadband outage and the customer is not tied to a monthly cloud fee. The Hikvision DS-7604NXI-K1/4P(D) 4-channel PoE NVR powers four cameras directly and is the natural partner for a typical semi or terrace; the DS-7608NXI-K1/8P(D) 8-channel version suits larger detached homes or properties with outbuildings. Both work with HiLook IP cameras, so the customer can mix ranges as the system grows.
Remote viewing runs through Hik-Connect. Set it up under the customer's own account, add family members as shared users rather than handing out the admin password, and switch on person/vehicle notifications only for the cameras that matter. Our Hik-Connect setup and handover guide covers the steps, and the CCTV storage guide shows how to size the hard drive for the retention the customer expects.
Video doorbells and door entry
The front door is where most daily security events happen — deliveries, callers, the occasional chancer — so a camera that lets the homeowner see and speak to visitors from anywhere is often the most-used part of the system. The Ajax DoorBell is the installer-grade option: according to Ajax's DoorBell technical specifications it records at 2688 × 1520 from a 4MP sensor with a 155° horizontal view, has IR up to 6m, is rated IP54, and uses on-device AI to tell people, pets and vehicles apart. Added to an Ajax hub, it uses Jeweller radio as a backup channel, so doorbell events still reach the system if the Wi-Fi drops. It is also available in black.
For a larger home, a gated drive or a family that wants an indoor screen in the kitchen, a wired IP door entry kit is the better fit. The Hikvision DS-KIS604-P(C) IP video intercom kit pairs a door station with a 7" touchscreen indoor monitor, and the DS-KIS613-S kit adds a metal villa door station and PoE switch in one box. Our Ajax DoorBell installer guide goes deeper on wiring and chime options.
| Need | Ajax DoorBell | Hikvision IP door entry kit |
|---|---|---|
| Answer from a phone | Yes, Ajax app | Yes, Hik-Connect |
| Indoor screen | No — phone and existing chime | Yes, 7" touchscreen monitor |
| Works with the alarm | Yes, same Ajax hub and app | Separate system |
| Gate or door release | Not its role | Yes, lock relay on the door station |
| Best for | Terraces, semis, Ajax alarm customers | Detached homes, gated drives, annexes |
Wireless intruder alarm: the Ajax Hub 2 family
A wireless Ajax alarm is the quickest way to give a finished home a graded intruder system without lifting carpets or chasing walls. According to the Ajax StarterKit 2 product page, a Hub 2 carries up to 100 wireless devices and up to 25 cameras over the Jeweller radio protocol, with up to 2km range in open space. For a typical home, the ready-built Ajax Hub2 Kit 1 (hub, two PIRs, a door contact, two key fobs and both sirens) or Hub2 Kit 3 (with a keypad instead of fobs) covers the basics in one box; build from a standalone Ajax Hub2 (2G) where the detector mix is different.
Where the system will be professionally monitored, or the customer wants it to keep working through a broadband outage, specify the Ajax Hub 2 Plus. Its four communication channels — Ethernet, Wi-Fi and two SIM cards — and up to 15 hours of backup battery are listed on Ajax's Hub 2 Plus page.
Detector choice is room by room. The Ajax MotionProtect U covers a hallway or landing — up to 12m at 88.5° with up to seven years' battery life, per the Ajax StarterKit 2 page — and the Ajax MotionCam U adds a photo with every alarm, so the homeowner can see whether the trigger was a burglar or a teenager home early. Put a DoorProtect Plus U on the front and back doors, a KeyPad Plus inside the front door, and give each family member an Ajax SpaceControl key fob. Finish with an Ajax HomeSiren U on the landing and an Ajax StreetSiren DoubleDeck on the front elevation, where a visible siren with a branded plate is half the deterrent. Our complete Ajax wireless alarm guide and Ajax kit guide cover sizing in depth.
Grading, pets and police response
Most UK homes are specified at Security Grade 2, and Ajax is certified to PD 6662:2017 at that grade, so the hardware is suitable for a police-response system when an accredited installer and a monitoring centre are involved. Ajax's standards compliance list confirms BS EN 50131 compliance and PD 6662:2017 Grade 2 certification. The hardware alone does not get a home police response: that needs an NSI- or SSAIB-approved installing company and an alarm receiving centre. Our PD 6662 and police response guide explains the route.
Pets are the other design question that decides whether a home alarm gets used or switched off. In rooms the dog or cat uses, swap single-PIR detectors for dual-sensor models and mount them at the height Ajax specifies; in rooms pets never enter, a standard PIR is fine. Our pet-friendly alarm guide has a room-by-room approach, and the MotionProtect vs Pyronix KX comparison covers detector choice.
Smoke, heat, carbon monoxide and leak detection
Life-safety detection is the part of a home system that protects people rather than property, and wireless Ajax detectors let it share the alarm hub, app and notifications. The Ajax FireProtect 2 RB (Heat/Smoke/CO) combines smoke, heat and carbon monoxide sensing in one head; according to the Ajax FireProtect 2 product page, the RB models run for up to 7 years on replaceable batteries, while the sealed-battery FireProtect 2 SB runs for up to 10 years.
The UK framework for domestic fire detection is BS 5839-6. As Aico's BS 5839-6 guide explains, the standard sets a Grade (how the alarms are powered) and a Category (where they go). Its Table 1 recommends Grade D1, Category LD2 for rented homes and Grade D2, Category LD2 for new-build owner-occupied homes of two to three storeys — detection in hallways and landings, a heat detector in every kitchen and a smoke detector in the principal living room. Landlords in England have separate legal duties: the Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022 guidance requires at least one smoke alarm on every storey used as living accommodation and a carbon monoxide alarm in any room with a fixed combustion appliance (excluding gas cookers). Grades D1 and D2 are mains-powered, while battery-only wireless detectors such as FireProtect 2 fall under the battery grades (F1/F2), so check the grade the property needs before quoting: where mains-powered alarms are required, they stay, and Ajax adds app alerts, CO coverage and alarm integration on top. Our wireless fire alarm systems guide covers the standards in more detail.
Then add the detector that pays for itself fastest. An Ajax LeaksProtect under the kitchen sink, behind the washing machine and beside the boiler reports a leak to the hub within 0.15 seconds, according to the LeaksProtect Jeweller technical specifications. See our Ajax LeaksProtect guide for placement.
Home Wi-Fi and network security
Every camera, doorbell and alarm hub in a modern home depends on the network, so a weak router or a Wi-Fi dead spot on the drive is a security problem, not just an annoyance. A mesh system fixes coverage: the Reyee RG-M32 twin-pack is a Wi-Fi 6 mesh rated at 3200Mbps with four dual-band antennas and eight signal amplifiers, per the Ruijie RG-M32 datasheet — one unit by the router, one at the far end of the house near the garage or garden office. The Reyee RG-EW1800GX-PRO suits a smaller flat, and the RG-EW7200BE-PRO Wi-Fi 7 router is the choice for a large, busy household. Wired cameras should still be wired — Wi-Fi is for the doorbell, the alarm hub's backup path and the family's phones. Our Reyee home and mesh Wi-Fi guide covers the range.
The law now backs good password practice. Since 29 April 2024, the UK's consumer connectable product security regime has banned universal default and easily guessable passwords on consumer smart devices, as set out in the government's guidance on the PSTI regime. The installer's part is simple: set a unique admin password on every recorder, camera and router, keep firmware updated, and turn off remote features the customer does not need — exactly what the NCSC's guidance on smart security cameras recommends for homeowners. Our HiLook camera activation guide covers secure first setup.
Neighbours, privacy and the ICO
Home CCTV that only sees the owner's own property is outside data protection law; once it captures a neighbour's property, a public street or a communal area, the owner has data protection duties. The ICO's guidance on home CCTV systems, which explicitly covers smart doorbells, says owners should position cameras to capture only their own property where possible, and that where they cannot, they must have a clear reason, avoid capturing more than they need, display signage, delete footage regularly and be able to respond when someone asks for a copy of footage they appear in. The ICO also notes that consent is rarely needed for home CCTV, because protecting a home and family is usually a legitimate reason.
For the installer, that turns into three habits at survey stage:
- Aim before you fix. Show the customer the live view on a phone and agree what each camera sees before the last screw goes in.
- Use privacy masking. HiLook and Hikvision recorders can mask a neighbour's window or garden; set it during commissioning, not after a complaint.
- Think about audio. Many cameras in this guide have microphones. Recording conversations on the street is more intrusive than video — leave audio off on boundary-facing cameras unless there is a clear reason for it.
Our UK GDPR and CCTV guide covers the wider obligations for installers and operators.
Three home reference builds
These three builds cover most residential enquiries — use them as a starting bill of materials and adjust after the survey.
| Build | CCTV & door | Alarm & life safety | Network |
|---|---|---|---|
| A — Flat or terrace 1-2 bedrooms | Ajax DoorBell at the front door; 1-2 × IPC-T249HAA-LU on a DS-7604NXI-K1/4P(D) where there is a yard | Hub2 Kit 3, FireProtect 2 RB in hall and living room, LeaksProtect under the sink | RG-EW1800GX-PRO |
| B — Semi-detached 3-4 bedrooms | 4 × IPC-T249HAA-LU (front, drive, garden, side) on DS-7604NXI-K1/4P(D); Ajax DoorBell | Hub2 Kit 1 plus MotionCam U and DoorProtect Plus U; FireProtect 2 per storey; LeaksProtect × 2 | RG-M32 twin-pack |
| C — Detached with outbuildings 5+ bedrooms, gated drive | IPC-T280HAD-LUF/SL on the rear corner, DS-2CD2347G3-LIS2UY/SL at the front, 6-8 cameras on DS-7608NXI-K1/8P(D); DS-KIS613-S at the gate | Hub 2 Plus, KeyPad Plus, StreetSiren DoubleDeck, MotionCam U per floor; FireProtect 2 SB throughout | RG-EW7200BE-PRO plus mesh nodes to the garage |
DIY smart kit or an installer-fitted system?
Consumer smart cameras and boxed alarm kits suit renters and small flats; an installer-fitted system wins once the home needs graded alarm detection, evidence-quality cameras or a single point of support. Homeowners often ask why they should not just buy a battery camera online. This comparison is a fair answer.
| Factor | Typical consumer smart kit | Installer-fitted system |
|---|---|---|
| Recording | Clips to a cloud subscription | Continuous local recording on an NVR/DVR, app viewing included |
| Power | Batteries to recharge | PoE or wired power, always on |
| Alarm grading | Usually ungraded | Ajax PD 6662:2017 Grade 2 hardware |
| Camera placement and privacy | Left to the homeowner | Surveyed, aimed and masked at commissioning |
| Support | Manufacturer helpline | A local installer who knows the system |
Commissioning and handover checklist
A home system is only as good as the handover — the customer has to trust it, understand it and actually arm it. Before leaving site, check:
- Every camera view agreed with the customer on a phone; privacy masks applied to neighbours' windows and gardens
- Audio off on boundary-facing cameras unless the customer has a clear reason to keep it
- Unique admin passwords on the recorder, cameras and router; firmware current; unused remote features off
- Hik-Connect and Ajax app accounts in the customer's name, with family members added as users
- Ajax detectors walk-tested, signal strength checked, pet settings matched to the rooms pets use
- Smoke, heat and CO detectors tested and their locations noted against BS 5839-6 and any landlord duties
- LeaksProtect tested with a damp cloth under each sink and appliance
- Night mode set so the customer can arm the downstairs while the family is upstairs
- Recorder retention checked against the hard drive fitted
FAQ: home security systems
What is the best home security system in the UK?
There is no single best brand; the best system combines 4MP cameras on a local recorder, a graded wireless alarm such as Ajax, a video doorbell and smoke, CO and leak detection, all managed from as few apps as possible and fitted to suit the property.
How many CCTV cameras does a house need?
Most semi-detached homes need three or four cameras — front door, driveway, rear garden and side passage — on a 4-channel NVR; larger detached homes with outbuildings usually need six to eight on an 8-channel recorder.
Is it legal for my home CCTV to see the street or my neighbour's garden?
It is not illegal, but once a camera captures beyond your boundary, data protection law applies: you need a clear reason, signage, regular deletion of footage and a way to handle requests from people recorded, according to the ICO.
Do I need a monthly subscription for a home security system?
Not necessarily. Cameras recording to a local NVR or DVR and viewed in Hik-Connect, and a self-monitored Ajax alarm, work without a subscription; professional monitoring and police response do involve an ongoing fee to the monitoring centre.
Will a wireless alarm work if the Wi-Fi goes down?
Yes. Ajax detectors talk to the hub over their own Jeweller radio, not the home Wi-Fi, and a Hub 2 Plus can report over Ethernet, Wi-Fi or two SIM cards, so a broadband outage does not stop the alarm working.
Can I get police response with an Ajax home alarm?
The hardware is certified to PD 6662:2017 Grade 2, which is suitable for police response, but you also need an NSI- or SSAIB-approved installer and an alarm receiving centre to obtain a police Unique Reference Number.
Should I choose IP or Turbo HD CCTV for my home?
Choose IP on Cat6 for a new system or a renovation; choose Turbo HD if the house already has coax cabling from an older system, because the new cameras and DVR reuse the existing cable.
Do smoke and carbon monoxide alarms count as part of a home security system?
They should. Ajax FireProtect 2 detectors report smoke, heat and CO to the same hub and app as the intruder alarm, so the household is warned on their phones even when they are out — while still meeting any separate landlord or BS 5839-6 requirements for the property.
Related posts
- HiLook ColorVu 3.0 Cameras: The UK Installer's Guide
- Ajax SpaceControl, Button & Tags: The UK Installer's Guide
- Ajax Signal Strength & ReX 2: The UK Installer's Radio Range Guide
- Hikvision Video Intercom: The UK Installer's Guide
- Ajax Sirens: HomeSiren, StreetSiren & DoubleDeck
Ordering
Netview CCTV stocks the HiLook, Hikvision, Ajax and Ruijie Reyee products in this guide in Leicester, with same-day dispatch on stocked lines. Browse the full range at netviewcctv.co.uk/brands, or contact us through the website for trade pricing on residential projects and multi-home developments.
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