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33 Years
experience
Emergency
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Expert Security Services in Hertfordshire
Established in 1993, Croxley Alarm Systems has built a reputation for delivering high-quality security solutions to residential and commercial clients across Hertfordshire and surrounding areas. As an NSI NACOSS GOLD Approved company, we specialise in the design, installation, and maintenance of advanced alarm systems, CCTV, and access control solutions, ensuring properties remain protected with cutting-edge technology. Our team of highly experienced engineers prioritises customer satisfaction, offering tailored services without subcontracting work.

With 24-hour assistance for contract customers, a free one-year service, and extended guarantees upon renewal, we combine technical expertise with reliable support. Our commitment to excellence has earned us recognition as a trusted provider of comprehensive security systems, catering to diverse needs from domestic installations to large-scale commercial projects.
Services
Intruder Alarms CCTV Systems Access Control Monitoring Services Smart Alarm Systems Security Upgrades System Maintenance Biometric Devices Digital Communicator Mobile App Integration
Details
  • Year established: 1993
Highlights and features
  • Established in 1993 with decades of security expertise.
  • NSI NACOSS GOLD Approved for industry-leading standards.
  • 24-hour assistance for contract customers without subcontracting.
  • Free one-year service with extended guarantees available.
  • Engineers install only the latest technology for tailored solutions.
Associations and certifications
  • NSI NACOSS GOLD
What people say
Highly experienced team 24-hour assistance Latest technology Free initial service Tailored guarantees
Services
Intruder Alarms
We design and install advanced intruder alarm systems tailored to residential and commercial properties. Our systems use the latest technology for reliable detection and real-time alerts. Clients benefit from free site surveys and a one-year guarantee on materials.
CCTV Systems
Our CCTV solutions include analogue, HD, and IP systems for homes and businesses. Installations feature remote smartphone access, multi-site capabilities, and free initial servicing. Systems integrate with alarms for comprehensive security.
Access Control
We supply and install bespoke access control systems including biometric devices and mobile-controlled entry. Solutions prevent unauthorised access while tracking entry/exit activity. Systems integrate with existing security infrastructure for enhanced protection.
Monitoring Services
Our 24/7 monitoring services use digital communicators and mobile networks for real-time alerts. Options include police response, SMS notifications, and app-based alerts. Systems ensure continuous protection for contract clients.
Smart Alarm Systems
Wireless smart alarm systems allow remote control via smartphone apps. Features include instant alerts, CCTV integration, and compatibility with existing security infrastructure. All systems meet NSI NACOSS GOLD standards for reliability.
Questions
What areas do you cover?
We serve properties within a 30-mile radius of Hertfordshire and surrounding areas.
Are your security systems covered by guarantees?
All new systems include a free one-year service with extended guarantees available upon renewal.
Do you offer emergency support?
Contract customers receive 24/7 assistance for urgent security issues.
What accreditations do you hold?
We are NSI NACOSS GOLD Approved, ensuring compliance with national security standards.
Can you install smart security systems?
Yes, our app-controlled systems offer remote monitoring, push notifications, and integrated CCTV access.
Do you handle repairs for existing systems?
We provide repairs, maintenance, and upgrades for all types of security systems.