Nox Fire & security

We’re NOX Fire & Security a Chesterfield-based team specialising in modern, app-controlled security for homes and small businesses across Derbyshire and South Yorkshire (with wider coverage available). We’re an Ajax Authorised installer and we pride ourselves on clear advice, tidy workmanship, and a proper handover so you feel confident using your system from day one.

We design, supply and install tailored security solutions, including:

• Smart Ajax intruder alarms (professionally installed and app-configured)
• Ultra HD CCTV with smart detection and remote viewing
• Fire & life safety detection (smoke/heat/CO alerts)
• Perimeter protection for early warning
• Ongoing servicing, maintenance and system upgrades

We offer free, no-obligation site surveys and quotations, and we can support urgent callouts where available.

We keep things simple and professional. Every system is designed around your property and how you live, not a one-size-fits-all setup. We install cleanly, test everything thoroughly, and take time to show you exactly how it works.

For customers who want monitoring, we can connect your system to an Alarm Receiving Centre (ARC), providing a professional route for alarm signalling and response procedures. Our priority is delivering reliable systems, installed properly, with straightforward support when you need it.