Commercial Fire Alarm Installation in Chesterfield, Sheffield and Derbyshire
NOX designs and installs commercial fire alarm systems across Chesterfield, Sheffield, Derbyshire and South Yorkshire. Conventional, addressable and suitable Ajax EN54 wireless solutions are specified around the building, fire strategy, zones, warning coverage, connectivity, standby power and future servicing.

A commercial fire alarm is a complete life-safety system
Control equipment, detection, manual activation, sounders, visual alarm devices, fire zones, communications, standby power and records must work together as one design. NOX reviews the premises and available fire information before recommending Ajax EN54, a wired addressable system or a conventional solution.
- ✓ New commercial fire alarm installations
- ✓ Suitable Ajax EN54 wireless addressable systems
- ✓ 10.1-inch touchscreen EN54 Fire Hub
- ✓ Smoke, heat, sounder and VAD device options
- ✓ Manual call points and clearly defined fire zones
- ✓ Fire ReX and I/O options for larger sites
- ✓ Conventional and wired addressable alternatives
- ✓ Commissioning, handover and future servicing route
Ajax EN54 devices selected as one coordinated fire system
The Fire Hub, addressable detection, manual call points, sounders, visual alarm devices, range extension and integration modules are selected around the complete fire-system design. NOX also continues to support suitable conventional and wired addressable systems.


Manual call point
Resettable manual activation positioned on escape routes and assigned to the correct fire zone as part of the agreed design.

Fire alarm sounder
Audible warning equipment selected and positioned to support the required alarm coverage throughout the premises.

Smoke detector
Addressable smoke detection selected around room use, ceiling conditions, fire zones and the wider cause-and-effect strategy.
See the technology in action
Explore the Ajax platform and individual products in motion. Final device selection still follows the property survey and the way the site will be used.
Ajax fire protection
See how Ajax control equipment and line devices can form part of a connected commercial fire system.
From survey to handover and ongoing support
Survey and fire-system brief
We review the building, use, available fire information, escape routes, existing equipment, access and any operational restrictions.
System design and specification
Control equipment, zones, detectors, manual call points, warning devices, communications and standby power are specified as one system.
Installation and commissioning
Devices are installed, labelled, configured and tested, with radio and network design confirmed where Ajax EN54 is selected.
Handover and service planning
The responsible person receives a clear handover, system information and the proposed route for inspection, servicing and remedial work.
Installation, operation and long-term support
EN54 Fire Hub control
Ajax EN54 Fire Hub is wireless control and indicating equipment with a 10.1-inch touchscreen. It supports Ethernet, Wi-Fi and two SIM cards for communication, with compatible 24- or 72-hour standby battery options.
Addressable detection and warning
The EN54 Line includes wireless smoke and heat detection, combined detector and sounder options, separate sounders, visual alarm devices and sounder/VAD units.
Manual activation and fire zones
Resettable manual call points can be assigned to defined fire zones, with alarms presented clearly at the control equipment and through the agreed notification route.
Coverage and integration
EN54 Fire ReX and I/O modules can support larger or more complex sites. On suitable projects, the Fire Hub can also support compatible intrusion, automation and video devices while the fire scope remains clearly defined.
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.
- ✓ Building size and use
- ✓ Available fire strategy or risk information
- ✓ Number of zones and devices
- ✓ Detection, sounder and VAD requirements
- ✓ Manual call point positions
- ✓ Access, working hours and installation method
- ✓ Connectivity and standby-power requirement
- ✓ Commissioning, records and future service scope
Turn the installation into a supported fire-safety plan
A fire alarm should lead naturally into planned servicing, professional monitoring where suitable, emergency-lighting support and one clear compliance package.
Planned testing, records, defects and remedial support.
Explore service02Fire Alarm MonitoringProfessional signalling and agreed escalation where suitable.
Explore service03Fire Compliance PackagesCoordinate agreed services and annual dates under one plan.
Explore service04Emergency LightingConnect escape-lighting installation and testing to the wider plan.
Explore serviceInstalled by NOX. Supported by NOX.
Installation is the start of the system lifecycle. Monitoring, maintenance, fault support and future changes can remain connected to the original design.
Monitoring
Professional signalling and agreed escalation for suitable maintained fire systems.
Maintenance
Planned inspections, testing, cleaning and system-health checks.
Priority Support
A straightforward contact route for faults, changes and future upgrades.
One Provider
Fire, CCTV, intruder and emergency-lighting support coordinated through one local point of contact.
Complete the system
Choose the next service that strengthens the same system, site or maintenance plan.
Fire Alarm Servicing
Keep inspection dates, records, defects and remedial actions visible after handover.
View serviceFire Alarm Monitoring
Add professional signalling and an agreed response route where the system and premises are suitable.
View serviceFire Compliance Packages
Coordinate agreed servicing, monitoring, lighting and annual dates under one arrangement.
View serviceEmergency Lighting
Coordinate escape-lighting installation and testing alongside the wider fire-safety plan.
View serviceReal installation examples
Genuine NOX projects showing the property type, equipment and work delivered.

Black CCTV and fire first-fix at The Tan Station
The Tan Station was being created as a modern customer-facing premises with a strong black interior and exterior finish. Leaving fire and security planning until the end would have risked exposed routes, awkward device positions and equipment that looked disconnected from the completed fit-out. NOX became involved during the project, completed the fire-alarm first fix and installed black internal and external CCTV in positions selected around the layout, finishes and intended use of each area.

Industrial Fire and Intruder Installation for a Derbyshire Warehouse
The Telesis Hitachi premises required modern fire protection and intruder security that could be installed around an operational industrial environment. The two systems needed to be coordinated as one project without confusing their separate life-safety and security functions. NOX installed the Ajax EN54 Fire Hub, manual call points and warning devices alongside the commercial intruder equipment, then tested normal operation, manual activation, alarm indication and evacuation functions before completing the handover with the responsible users.

Commercial Fire and Intruder Installation for Banana Industries
Banana Industries had inherited older intruder controls that no longer provided the clear, modern user experience required by the business. The premises also had separate fire-protection needs, so the project had to be coordinated without treating the fire and intruder systems as one combined function. NOX assessed the existing arrangement, replaced the ageing alarm controls with Ajax equipment, introduced new detection and opening protection, installed the external NOX siren and completed a clear handover and future-support route for the Sheffield team.
Related services in your area
Find the most relevant NOX installation, servicing and takeover options across our core service area.
Plan commercial fire alarm installation in chesterfield, sheffield and derbyshire with practical information
Practical answers covering specification, installation, maintenance and existing-system decisions before you request a survey or quotation.
Commercial Fire Alarm Installation in Chesterfield, Sheffield and Derbyshire across Chesterfield, Sheffield and Derbyshire
Use the most relevant local page for area-specific services, nearby coverage and genuine NOX project experience.
What to include with your enquiry
These details help NOX route the enquiry correctly and reduce unnecessary back-and-forth before a survey, service visit or quotation.
Premises and postcode
Include the building use, location, access restrictions and whether the site is occupied while work is planned.
Existing system details
Share panel, recorder or equipment photographs, approximate device quantities, known faults and available records.
Required outcome
Explain what the Fire Alarm Installation needs to achieve, any insurer or compliance requirement and the preferred project timescale.
Trusted for clear advice, tidy work and proper handover
“We had NOX Fire & Security install our commercial fire alarm system alongside an intruder alarm, and the whole experience was spot on from start to finish. Clean, professional installation, everything clearly explained, and the system is easy to manage through the app with instant alerts. The fire system is clear, reliable and easy for the team to manage without overcomplicating things. No pushy sales, no unnecessary contracts — just honest advice and proper workmanship. You can tell they care about doing things right. Highly recommend NOX for any business looking for fire or security systems in Chesterfield / Sheffield.”Rory StirlandCommercial Fire Alarm & Intruder Alarm
“We recently had NOX install cameras, smoke screens, and alarms at our office and the whole experience has been spot on from start to finish. From the very first phone call with Isaac, everything felt straightforward and reassuring. He took the time to explain our options, answered all our questions, and helped design a system that made sense for our building and our budget. No pushy sales tactics at all, which was refreshing. The installation was smooth, the team were professional, and even after everything was fitted, Isaac has been on hand to help with any follow-up questions. A really great service and a company I'd happily recommend.”Nathan De La RosaCommercial CCTV, Alarms & Smoke Screens
“Professional, friendly and sensible pricing. From first contact to completion the process was smooth and stress-free. The team clearly know their stuff and the system is exactly what we needed. Would have no hesitation recommending NOX to other businesses.”Jez SCommercial CCTV
Service area: Commercial fire alarm installation is available across Chesterfield, Sheffield, Derbyshire and South Yorkshire, with wider travel for suitable industrial and multi-site projects.
Clear answers before you commit
Is Ajax EN54 a fully wireless fire alarm system?
The Ajax EN54 Line is a wireless addressable commercial fire system. The Fire Hub still needs mains power and connectivity, and Ethernet may be used for range extension or site design where required. Suitability is confirmed through the survey and system design.
Can Ajax EN54 combine fire and intruder protection?
EN54 Fire Hub can support compatible intrusion, automation and video devices on suitable projects. The fire alarm design, zones, warning coverage and servicing scope still remain clearly defined as a life-safety system.
Is Ajax EN54 suitable for every commercial building?
No single platform suits every premises. NOX also installs or supports suitable conventional and wired addressable systems, depending on the building, fire strategy, access and project requirements.
Can NOX service the system after installation?
Yes. The future inspection and servicing route is planned from the installation stage, with defects and remedial work recorded separately.
Request a Fire Alarm Quote
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.
