Business Details
42 Years
experience
Emergency
services
Your Trusted Partner for Security Solutions in Liverpool
Established in 1984, Crosby Intruder Alarms has grown into one of Merseyside's premier independent security alarm companies, serving clients nationwide. Our family-owned business combines over four decades of industry expertise with a commitment to quality, utilising only the finest products and employing police-checked, qualified technicians. We specialise in comprehensive security solutions including intruder alarms, CCTV systems, access control, fire alarms, and emergency lighting, all installed to the highest British standards. Our SSAIB registration and UKAS accreditation underscore our dedication to technical excellence and customer satisfaction. With a legacy of innovation, we pioneered the UK's first parish council-funded domestic CCTV scheme and continue to lead in IP-based security technologies.Our engineers undergo rigorous training, including City & Guilds qualifications and manufacturer-specific courses, ensuring cutting-edge expertise. We maintain a 4-hour response time for maintained customers and offer 24/7 monitoring through our partnership with East Midlands Central Station. Our commitment to quality extends to product testing, with all equipment undergoing six months of workshop evaluation before inclusion in our portfolio. This meticulous approach, combined with our heritage of customer-centric service, has earned us a reputation as a trusted security partner across domestic and commercial sectors.
Services
Intruder Alarms
CCTV Systems
Access Control
Fire Alarms
Nurse Call
Smokecloak
Public Address
Emergency Lighting
Home Automation
Data Cabling
Details
- Year established: 1984
Highlights and features
- 40 years of specialist security experience since 1984
- SSAIB registered with UKAS accredited quality standards
- Engineers police-checked, DBS vetted and City & Guilds qualified
- Nationwide installations with 4-hour emergency response guarantee
- 24/7 monitoring through East Midlands Central Station partnership
Associations and certifications
- SSAIB
- UKAS
What people say
Excellent service
Highly recommended
Professional and reputable
Prompt response
Knowledgeable staff
Services
Intruder Alarms
Our intruder alarm systems provide robust protection for residential and commercial properties. Installed by police-vetted technicians using grade-compliant equipment, these systems feature audible deterrents, remote smartphone control, and optional 24/7 monitoring. The technology includes pet-friendly detectors and dual-technology sensors for reduced false alarms.
CCTV Systems
We supply and install high-definition CCTV systems using leading brands like Videcon and UniView. Our IP-based solutions offer remote viewing via smartphone apps, night vision capabilities, and cloud storage options. Systems comply with data protection regulations and include vandal-resistant models for commercial premises.
Fire Alarms
Our fire alarm installations meet BS5839 standards with products from C-Tec and Apollo. Systems include smoke, heat, and carbon monoxide detectors with options for multi-tenancy buildings. We offer maintenance contracts and emergency lighting integration to ensure compliance with fire safety regulations.
Access Control
We implement electronic access control solutions using Paxton and PAC systems. These include keycard readers, biometric scanners, and time-based access protocols. Our installations integrate with existing security systems and provide audit trails for enhanced security management in commercial environments.
Emergency Lighting
We install and maintain emergency lighting systems that comply with BS5266 standards. Our solutions include self-contained and central battery systems with automatic testing features. These critical safety installations ensure safe evacuation routes during power failures in commercial and public buildings.
People
Gareth J. Williams
Partner
Third-generation security expert with 15 years' experience. Completed FESS Trailblazer apprenticeship, now oversees operations and IT development. Teaches at North West Training Council following his father's legacy in industry education.
Ann E. Williams
Partner
Co-founder with over 30 years' industry experience. Manages day-to-day operations and maintains quality standards. Recognised for technical expertise in security system design and implementation across domestic and commercial sectors.
Questions
What security services do you offer?
We provide intruder alarms, CCTV systems, access control, fire alarms, nurse call systems, emergency lighting, and home automation solutions for domestic and commercial clients.
Are your engineers qualified?
All engineers are police-checked, DBS vetted, and hold City & Guilds NVQ Level 3 or FESS Trailblazer apprenticeships, with regular manufacturer training updates.
Do you offer 24/7 monitoring?
Yes, through our partnership with East Midlands Central Station, with optional police response and keyholder management available for confirmed alarms.
What areas do you cover?
We operate nationwide with installations across the UK, supporting both local Merseyside clients and national contracts for major retailers.
How quickly do you respond to emergencies?
Maintained customers receive a guaranteed 4-hour response time for alarm faults or system failures, with emergency call-out charges applying to non-contract clients.
What accreditations do you hold?
We are SSAIB registered and UKAS accredited, with engineers certified to BS4737 standards and participation in industry training councils.
