Security for garages, outbuildings, gates and detached areas
Detached garages, workshops, garden buildings and longer driveways often need more than a standard house-alarm layout. NOX assesses distance, communication, power, access and the value or activity within each area before designing the protection.

Separate buildings need reliable communication and the right detection method
The design may use door protection, movement detection, MotionCam, external detection, CCTV, sirens or a combination. Signal range, construction, power, weather exposure and how the space is used determine the sensible route.
- ✓ Detached garage alarm protection
- ✓ Workshop and garden-building coverage
- ✓ Gate and driveway approaches
- ✓ CCTV for vehicles and external areas
- ✓ External detection where suitable
- ✓ Signal and power assessment
- ✓ Night-mode and part-arm options
- ✓ One app or joined-up handover where compatible
From survey to handover and ongoing support
Site and distance review
We inspect the main house, detached spaces, boundaries, routes, construction and likely communication obstacles.
Layered design
Alarm detection, CCTV, external protection and control are selected around each area rather than treated as one room.
Range and installation checks
Power, network, radio range, cable routes, mounting positions and weather exposure are confirmed.
Handover by area
Users are shown how to arm, view and manage the house and external spaces without making daily use complicated.
Installation, operation and long-term support
Alarm protection
Door contacts, movement detection and photo verification can protect the building before or after entry depending on the design.
Perimeter warning
Suitable external detectors can identify movement around driveways, gates or approaches before the main building is reached.
CCTV evidence
Cameras can provide live and recorded views of vehicles, access points, paths and vulnerable external areas.
Phased expansion
Larger properties can be delivered in stages where the core system, coverage and future capacity are planned properly from the start.
What affects the final quotation
The correct price depends on the property, system and work required. NOX confirms the scope before presenting equipment and installation costs.
- ✓ Distance from the main property
- ✓ Construction and radio conditions
- ✓ Power and network availability
- ✓ Number of doors, rooms and external areas
- ✓ Required CCTV recording
- ✓ Gates, boundaries and vehicle approaches
Keep the system healthy after installation
NOX supports new installations and suitable traditional or existing systems with health checks, testing, cleaning, battery or recorder review, firmware where supported and clear service records.
Real installation examples
Genuine NOX projects showing the property type, equipment and work delivered.

Ajax Alarm and CCTV Installation for a Chesterfield Home
The property was being renovated and needed a modern security system that would remain discreet against the finished brickwork. NOX combined app-controlled intruder protection with black external CCTV cameras, a keypad and a branded external warning device.

Industrial CCTV and Intruder Protection in Buxton
A busy industrial site in Buxton required one joined-up security approach. NOX combined an Ajax intruder alarm with a nine-camera CCTV system planned around the premises and its working areas.
Related services in your area
Find the most relevant NOX installation, servicing and takeover options across our core service area.
Trusted for clear advice, tidy work and proper handover
“Brilliant service from NOX. Super professional, knowledgeable, and they went out of their way to be helpful. Everything was explained clearly and in detail. The install was tidy, and the whole process was smooth from start to finish. We were thinking about getting a security system for a while and now we're so glad we went with NOX. Would 100% recommend to anyone.”Ryan HargreavesAjax Alarm System
Service area: NOX designs garage and outbuilding security across Chesterfield, Sheffield, Derbyshire and nearby rural areas.
Clear answers before you commit
Can an Ajax alarm protect a detached garage?
Often yes, but distance, construction, signal conditions and hub capacity must be checked at the property.
Can a garage have its own keypad or controls?
Suitable Ajax systems can use additional control devices, tags or app permissions depending on the final design.
Can CCTV and an alarm cover the same outbuilding?
Yes. Alarm detection and CCTV solve different parts of the requirement and can be designed together.
What if there is no internet in the outbuilding?
The answer depends on the system type. Some alarm devices communicate with the main hub, while CCTV may need cabling, wireless bridging or another network solution.
Can you protect gates and driveways?
Yes, using suitable CCTV, external detection or a combination after the approach, boundaries, animals and normal movement have been considered.
Protect a Garage or Outbuilding
Tell us about the property, existing equipment and what you need the system to achieve. We will confirm the correct survey and quotation next step.
