Fire alarm systems
Conventional and addressable systems for offices, retail, and residential blocks. Full design, install, and commissioning.
Fire & intruder alarms · Hertfordshire
Protect what matters with compliant alarm systems
Design, installation, and monitoring for homes and businesses across Hertfordshire. NSI Gold approved. BAFE accredited. Fully documented handover on every project.
Systems monitored 24/7
Services
Complete fire & security solutions
From single-home intruder alarms to multi-site commercial fire systems — designed, installed, and maintained by our in-house engineers.
Intruder alarms
Wired and wireless systems with app control, pet-friendly PIRs, and police response options where eligible.
CCTV installation
HD and 4K cameras with remote viewing, night vision, and GDPR-compliant signage and configuration.
Access control
Keypad, fob, and biometric entry systems for offices, schools, and multi-tenant buildings.
Monitoring contracts
24/7 ARC monitoring with rapid keyholder and emergency service notification.
Maintenance & testing
Annual servicing, fire alarm testing, and remedial works to keep systems compliant and operational.
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BAFE SP203-1 accredited fire installation
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NSI Gold approved for intruder alarms
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All engineers F-Gas and ECS certified
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Full documentation and handover packs
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Residential and commercial experience
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Free site surveys and written quotations
About Guardian
Hertfordshire's trusted alarm specialists
Guardian Fire & Security has protected homes and businesses across Hertfordshire since 2005. We employ our own engineers — no subcontractors — and maintain direct relationships with leading equipment manufacturers.
Every installation includes a full risk assessment, system design, commissioning certificate, and user training. We remain on call for maintenance, upgrades, and emergency repairs long after handover.
“Compliance isn't a checkbox — it's the foundation of every system we install.”
Installations
Systems in the field
Free survey
Request a site survey
Demo form — submissions are not sent. Call 01438 220 100 for urgent enquiries.