Business Details
43 Years
experience
Emergency
services
Trusted Security Solutions in San Gabriel, CA
Diversified Alarm Service has been locally owned and operated by the Johnson family for over 25 years, providing comprehensive security solutions to residential and commercial clients. Our team of certified specialists excels in designing, installing, and monitoring advanced security systems, including fire alarms, CCTV, and access control. As a customer-driven organization, we prioritize quality installations, personalized service, and maintaining long-term relationships with our clients. Our in-house technical team ensures consistent service excellence, avoiding subcontractors to uphold our standards. With a legacy rooted in law enforcement dating to the 1950s, we combine generational expertise with cutting-edge technology to deliver tailored security solutions.Our commitment to attention to detail has earned us a 95% client retention rate, reflecting our dedication to exceeding customer expectations. We serve the San Gabriel Valley and surrounding areas, offering both residential and commercial security systems that integrate seamlessly for comprehensive protection. Our certifications with industry leaders like Alarm.com, Honeywell, and Silent Knight underscore our technical proficiency. By standardizing installation procedures, we maintain reliability while offering the personalized service large national companies often lack. Our motto, 'We are only as good as our last job,' drives our relentless focus on delivering flawless results for every client.
Services
Home Security
Fire Alarms
CCTV
Access Control
Commercial Security
Details
- Year established: 1983
Highlights and features
- Family-owned with 40+ years serving San Gabriel Valley
- In-house certified technicians for all installations
- Custom integrated security systems for homes and businesses
- 95% client retention from quality-focused service
- Certified by leading industry brands like Honeywell and Alarm.com
Associations and certifications
- Alarm.com UTC Certified
- Honeywell Vista Certified
- Silent Knight Certified
- California Alarm Association
- Southern California Security Assoc
- GLASSA
What people say
Flawless delivery
Expert technical team
Custom solutions
Responsive service
Quality installations
Services
Home Security
Our home security systems reduce burglary risk by 300% through advanced monitoring and integrated technology. We install customized solutions combining intrusion detection, fire alarms, and medical emergency response. Systems feature remote access and smart home integration for comprehensive protection.
Fire Alarms
We design AHJ-approved fire alarm systems compliant with NFPA codes and local regulations. Our installations include smoke detectors, heat sensors, and notification devices. Commercial clients may qualify for insurance discounts through monitored fire detection systems.
Access Control
Our access control solutions manage entry points with keypads, card readers, and biometric scanners. Systems integrate with security cameras for complete visibility. Commercial clients benefit from customizable user permissions and audit trail capabilities for enhanced security management.
CCTV Surveillance
We install high-resolution CCTV systems with remote viewing capabilities for homes and businesses. Our solutions include night vision, motion detection, and cloud storage options. Commercial systems integrate with access control for comprehensive security oversight.
Commercial Security
Our commercial security systems integrate fire alarms, access control, and CCTV into unified platforms. We serve water districts, utilities, and institutions with customized monitoring solutions. Projects include LAN-based systems for remote site security and compliance with regulatory requirements.
People
Daniel E. Johnson
President
Second-generation security expert with family law enforcement legacy. Leads Diversified Alarm Service since 1983, focusing on quality installations and client relationships. Holds industry certifications from Honeywell and Alarm.com.
Danny Johnson
Security Specialist
Third-generation security professional with technical expertise in system design. Manages complex commercial installations including LAN-based security networks. Certified by Silent Knight and California Alarm Association.
Questions
What security systems do you offer for homes?
We provide integrated home security systems including intrusion detection, fire alarms, medical alerts, and smart home automation. All systems feature remote monitoring capabilities.
Are your technicians certified?
Yes, our in-house team holds certifications from Alarm.com, Honeywell, Silent Knight, and California Alarm Association for all installed systems.
Do you serve commercial clients?
We specialize in commercial security with integrated systems combining fire alarms, access control, CCTV, and LAN-based monitoring for businesses and institutions.
What areas do you service?
We serve San Gabriel Valley, Los Angeles County, and surrounding California areas with both residential and commercial security solutions.
Can I get a fire alarm discount on insurance?
Many commercial clients receive property insurance discounts through our monitored fire detection systems compliant with NFPA and local fire codes.
