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28 Years
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Emergency
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Your Trusted Security Partner in Los Angeles
Millennium Alarm Systems has been a trusted provider of comprehensive security solutions since 1998. Specializing in alarm systems, intelligent home automation, access control, and video surveillance, we leverage over 25 years of industry experience to deliver cutting-edge technology tailored to our clients' unique needs. As one of the largest authorized ADT dealers in North America, we combine the expertise of an industry leader with personalized service to ensure the safety and peace of mind of our residential and commercial clients. Our team of skilled professionals is dedicated to safeguarding homes, businesses, and communities across multiple licensed states.

With the integration of Google Nest devices into ADT-monitored systems, we offer innovative smart home security solutions that adapt to evolving security demands. Our commitment to excellence is demonstrated through our 130,000+ installed systems and strategic partnerships that extend our reach to underserved locations. We maintain offices in key states including Arizona, California, Florida, and New York, ensuring localized support for our diverse client base.
Services
Residential Security Commercial Security Video Surveillance Home Automation Access Control Fire Alarm Systems Smart Security Solutions 24/7 Monitoring CCTV Installation Security System Maintenance
Details
  • Year established: 1998
Highlights and features
  • We offer over 25 years of specialized security experience
  • Our team includes certified experts with ADT-authorized training
  • We provide 24/7 monitoring and emergency response services
  • Our solutions integrate Google Nest smart home technology
  • We operate in 17+ states with strategic local partnerships
Services
Residential Security
Our residential security systems protect homes of all sizes with customizable alarm systems and 24/7 monitoring. Using ADT-certified technology, we offer door/window sensors, motion detectors, and smartphone control. Smart home integration with Google Nest devices enhances security while maintaining ease of use for homeowners seeking comprehensive protection.
Commercial Security
Tailored commercial security solutions protect businesses from small offices to industrial facilities. Our systems include access control, surveillance cameras, and fire alarm integration. With scalable options and 24/7 monitoring, we address unique security challenges for commercial properties while meeting industry compliance requirements for businesses in multiple sectors.
Video Surveillance
24/7 video surveillance protects properties with high-definition recording and remote access. Our cameras provide real-time monitoring and evidence collection for residential and commercial clients. Night vision, motion activation, and cloud storage features ensure comprehensive coverage for both indoor and outdoor security needs.
Home Automation
Integrated smart home systems enable remote control of security, lighting, and climate. Google Nest integration allows voice-activated commands and smartphone management. This technology creates a convenient, energy-efficient environment while maintaining robust security measures for modern homeowners.
Access Control
Advanced access control systems manage entry points with keycards, biometrics, or smartphone credentials. Customizable permissions help businesses control employee access while maintaining security logs. This solution enhances both physical security and operational efficiency for commercial clients.
Questions
What areas do you serve?
We provide security services across Arizona, California, Florida, New York, and 12 other states with localized support through our offices and partner networks.
Do you offer smart home integration?
Yes, our systems integrate with Google Nest devices for smart home control, including security monitoring and automation features.
Are financing options available?
We offer equipment financing plans with terms up to 60 months for approved customers installing our security systems.
What monitoring services do you provide?
We offer 24/7 ADT-certified monitoring with multiple communication pathways including cellular, broadband, and landline options for uninterrupted coverage.
Can I control my system remotely?
Yes, the ADT mobile app allows remote access for system control, real-time alerts, and live camera viewing from anywhere with internet connectivity.
What is your installation process?
After a free consultation, our certified technicians schedule installation at your convenience and complete system setup while explaining key features and operation.
Reviews (5)
Keith Gemmell
Jan 29, 2022 Report
DONT TRUST THEM. Poor customer service, bullying tactics to get you to sign an agreement. They will promise everything ADT can offer, even a six month moeny back guarantee, and not come through. Failure to fully install system as promised. When I called to voice my concerns about a lack of the full system I signed a contract for and I was told that would cost more money. When I told them I would like to cancel they threatened me and then hung up on me. Poor customer service and bad promises. You should be able to trust the company "protecting" your home. I do not.
Lili Alireza
Dec 20, 2021 Report
Critical: Professionalism, Punctuality, Quality, Responsiveness, Value I should've read the reviews before even thinking to deal with this poorly managed, unprofessional business. If you are reading this, the best advice is just RUN AWAY as quickly as possible. DO NOT TRUST THEM
Madonna Cones
Nov 05, 2021 Report
Critical: Professionalism, Punctuality, Quality, Responsiveness, Value All I can say about this company I wouldn't refer to my enemy I mean back communication bat service only thing good about it was my sales rep he was excellent
Devon Thomas
Apr 10, 2021 Report
Had the greatest experience they were professional and on time and service was exceptional. Will use them again and recommend to others
Kent Karaosmani
Oct 24, 2020 Report
This company will look to take advantage of you, avoid at all costs. An agent harrassed me for 6 months to sign up for a security system. Once me and my wife agreed the agent misrepresented and ommited material facts and misled my family. This company is all about sales even if it means commiting fraud. I failed to read further into reviews of this company on BBB and how they take advantage of middle class families. Avoid this company at all costs, because they will find away to take advantage of you.