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Trusted Security Solutions for Homes and Businesses
Established in the 1990s, M25 Security Systems was founded to address a market demand for high-quality security system installation and maintenance. Our expertise spans domestic and commercial premises, offering tailored solutions including intruder alarms, CCTV, and entry systems. As an SSAIB-registered company, we consistently exceed insurance requirements while prioritising minimal disruption during installations. Our growth reflects client trust, with free risk assessments and quotations forming the foundation of our service. Over decades, we've maintained a reputation for reliability, delivering prompt installations, transparent communication, and comprehensive maintenance agreements.

Our team's technical proficiency ensures compliance with evolving standards like PD6662:2010 and BS 8243. Customer testimonials highlight our punctuality, professionalism, and after-sales support, including 24-hour emergency response within four hours. We serve Hertfordshire and surrounding areas, combining local knowledge with national accreditation to provide peace of mind for homeowners and businesses alike.
Services
Intruder Alarms CCTV Installation Entry Systems Maintenance Agreements 24-Hour Response
Highlights and features
  • We offer over 30 years of specialist security experience
  • Our SSAIB registration ensures insurance-compliant installations
  • Free no-obligation risk assessments and quotations
  • 24-hour emergency response within four hours
  • Minimal disruption during system installations
Associations and certifications
  • SSAIB
What people say
Prompt response Delighted with every step Fantastic to work with Excellent work Highly recommended
Services
Intruder Alarms
We install and maintain advanced intruder alarm systems with options for monitored or standalone configurations. Our solutions include digital communicators and speech diallers for enhanced security. Systems comply with current PD6662:2010 standards, featuring concealed wiring and minimal disruption during installation.
CCTV Systems
Our CCTV installations range from single-camera setups to multi-unit commercial systems. We offer high-resolution digital solutions with remote access capabilities. All installations meet BS 8243 requirements, ensuring optimal coverage and data protection compliance for residential and business premises.
Entry Systems
We provide audio and video entry systems with keypad or proximity access options. Our solutions integrate with existing security infrastructure while maintaining ease of use. Installations include concealed wiring and compatibility with monitored alarm systems for comprehensive security.
Maintenance Agreements
Our maintenance plans ensure system reliability through scheduled inspections and preventative care. Services include battery testing, control panel checks, and alarm signal verification. Contracts include 24-hour emergency support with rapid response times for system failures.
24-Hour Response
We offer round-the-clock emergency assistance for system malfunctions or break-ins. Our four-hour response guarantee covers alarm failures, unauthorised access incidents, and urgent repair requirements. This service is available to both contract and one-off clients.
Questions
What security systems do you install?
We install intruder alarms, CCTV systems, and entry control solutions for residential and commercial properties.
Are you SSAIB registered?
Yes, we are SSAIB registered, ensuring our installations meet insurance industry standards.
Do you offer emergency services?
We provide 24-hour emergency response with technicians arriving within four hours of contact.
How often should alarms be maintained?
Maintenance frequency depends on system grade, ranging from annual to twice-yearly visits as per PD6662:2010.
Can you service existing systems?
Yes, we service and upgrade existing security systems regardless of original installer.