Commercial fire systems supported from first design through ongoing servicing
NOX provides fire alarm installation, servicing, repairs, emergency lighting and coordinated compliance support across Chesterfield, Sheffield and Derbyshire. Each service is kept clear so customers can see the initial project, recurring work and any remedials separately.

Installation and replacement work designed around the premises
The building, occupancy, fire information, existing equipment, access and future service route are considered before a system or fitting schedule is proposed.

Fire Alarm Installation
New conventional, addressable and suitable wireless EN54 systems designed around the building and future maintenance route.
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Emergency Lighting Installation
New fittings, replacement projects and upgrades planned around escape routes, exits and the property layout.
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Fire Risk Assessments
A structured route for understanding risks, priorities and the work the responsible person needs to consider.
Explore service →Servicing, repairs and annual support for existing systems
NOX supports suitable existing fire alarms and emergency lighting, including systems installed by another provider, subject to access, condition, records and parts availability.

Fire Alarm Servicing
Planned testing, records, defect reporting, existing-system takeovers and clear remedial quotations.
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Fire Alarm Repairs & Takeovers
Assessment of faults, access, documentation, supportability and the sensible repair or replacement route.
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Emergency Lighting Testing
Functional checks, annual duration testing, failed-fitting reports, records and coordinated remedials.
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Fire Extinguisher Servicing
Asset-led servicing with clear treatment of replacements, defects and multi-site scheduling.
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Fire Compliance Plans
Bring agreed fire alarm, emergency-lighting and other fire-safety services into one clearer annual arrangement.
Explore service →Installation, servicing and remedials answer different customer needs
A new fire alarm page should help a customer plan a system. A servicing page should explain testing, records and recurring visits. A repairs page should deal with faults, access and supportability. Keeping those intentions separate makes the next action clearer and protects search relevance.
Commercial fire and integrated system work
Genuine project photography and confirmed scopes showing fire, intruder and wider site requirements.

Black CCTV and fire first-fix at The Tan Station
The Tan Station was developed around a modern, premium interior and exterior finish. NOX coordinated black CCTV equipment with the property design and completed fire-alarm first-fix work during the fit-out stage, helping the different systems sit naturally within the wider project.

Industrial Fire and Intruder Installation for a Derbyshire Warehouse
The Telesis Hitachi premises required a modern Fire and intruder solution suited to an operational industrial environment. NOX installed the system around the building, configured the Ajax EN54 Fire Hub, tested manual activation and evacuation functions, and completed the system handover.

Commercial Fire and Intruder Installation for Banana Industries
NOX delivered a coordinated intruder and fire project for Banana Industries, keeping the installation and handover within one local team.
Clear installation, handover and local support
“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
“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
“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
Discuss a fire installation, service or takeover
Tell us about the premises, existing equipment and the work required. NOX will guide the enquiry into the correct installation, servicing, repair or annual-support route.
