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50+ Years
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Emergency
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Trusted Commercial Alarm & Security Systems in St. Louis
Founded in 1972, Alarm 24 has emerged as a leader in the security services industry, driven by over 50 years of combined experience from our management team. We specialize in providing comprehensive security solutions tailored to residential and commercial clients, leveraging the latest technology for burglar and fire systems, video surveillance, and access control. Our commitment to rapid response is underscored by a 24/7 UL Central Monitoring Station, ensuring immediate contact with emergency responders in critical situations. We prioritize strategic relationships with clients, offering cost-efficient, customized solutions backed by trusted industry partnerships. Our services extend to marine alarm systems and wireless data networks, reflecting our adaptability to diverse security needs.

Fully licensed and compliant with national standards, we are proud members of the National Fire Protection Association and the National Burglar and Fire Alarm Association. Our team's expertise in infrastructure solutions and precision installations guarantees competitive pricing without compromising quality. The MyA24 Interactive App empowers users to monitor properties remotely, fostering peace of mind. Customer testimonials highlight our reliability, and our dedication to innovation ensures clients receive cutting-edge security technology. With operations in St. Louis, Saint Charles, and St. Peters, Missouri, we continue to grow as a trusted partner in security.
Services
Fire & Alarm Systems Video Surveillance Access Control Marine Applications Wireless Solutions Monitoring Services Security Systems
Details
  • Year established: 1972
Highlights and features
  • We offer 24/7 customer support and rapid emergency response services.
  • Our team has over 50 years of combined experience in security solutions.
  • We operate a UL Certified Central Monitoring Station for reliable alerts.
  • Our partnerships ensure access to state-of-the-art security technology.
  • We provide customized, cost-efficient solutions for diverse client needs.
Associations and certifications
  • National Fire Protection Association
  • National Burglar and Fire Alarm Association
What people say
Real piece of mind 24/7 monitoring Rapid response User-friendly app Trusted service
Services
Fire Alarm Systems
Our fire alarm systems include control panels, smoke detectors, and sprinkler monitoring, installed and maintained to meet local codes. We offer free fire protection integration with monitoring systems, ensuring rapid emergency response even when disarmed. Backed by decades of experience and compliance with national safety standards.
Video Surveillance
We provide digital, IP, and HD cameras with remote viewing via mobile apps. Features include motion-triggered recording, customizable schedules, and integration with point-of-sale systems for enhanced security. Our solutions ensure 24/7 monitoring and reliable evidence collection for residential and commercial properties.
Access Control
Our card access control systems offer secure entry management with proximity cards, keypads, and biometric options. Integration with fire alarms and video surveillance enables centralized security. Benefits include real-time tracking, remote access modification, and protection against unauthorized entry in corporate, retail, and industrial settings.
Marine Applications
Specializing in marine alarm systems, we protect boats with remote monitoring, motion-triggered video clips, and sensor alerts for temperature, water levels, and security breaches. Our solutions provide peace of mind year-round, integrating with mobile apps for arming/disarming and event notifications.
Wireless Solutions
We design high-powered Wi-Fi networks for residential and commercial use, enabling seamless connectivity for security cameras, smart devices, and city-wide surveillance. Services include IP camera integration, remote system control, and robust networks for reliable performance in both indoor and outdoor environments.
Questions
What services does Alarm24 offer?
We provide fire alarm systems, video surveillance, access control, marine security, wireless networks, and 24/7 monitoring for residential and commercial clients.
How does Alarm24 handle emergencies?
Our UL Certified Central Station dispatches police, fire, or medical responders immediately upon alarm activation, ensuring rapid assistance.
Do you offer residential fire protection?
Yes, fire protection is included at no additional charge with our monitoring systems, even when disarmed.
Can I monitor my property remotely?
Yes, the MyA24 Interactive App allows real-time monitoring, arming/disarming, and alerts via mobile devices.
Are installation and service available in my area?
We serve St. Louis, Saint Charles, St. Peters, MO, and offer nationwide licensed monitoring services.
Reviews (1)
Ben Pezold
Dec 31, 2016 Report
I have used them at my business since 2001. Extremely professional and reliable. Its amazing the different types of camera system options that are available such as remote viewing from your phone! I highly recommend Alarm 24 for all your alarm & camera system needs!