Protecting Buildings, Tenants & Portfolios.
From single office buildings to multi-property portfolios, USA Alarm Systems designs, installs, monitors, and services integrated security, fire alarm, access control, and video surveillance systems for property managers throughout Los Angeles County.
Know What's Happening at Your Properties — From Almost Anywhere
Modern property security should do more than sound an alarm. USA Alarm Systems brings access control, video surveillance, intrusion detection, remote management, and professional monitoring together into one integrated platform — giving property managers greater visibility and control across every building.
Remote System Control
Arm or disarm from anywhere
Arm or disarm your building security system from authorized mobile devices. Whether you're off-site or managing multiple properties, you can verify system status, trigger actions, and stay in control at all times.
Instant Notifications
Real-time property security alerts
Receive real-time alerts about important security events and system activity. Know immediately when an alarm triggers, when a door opens after hours, or when a user arms or disarms the system — so you can respond faster.
Access Control
Control who enters your buildings
Manage access across every building in your portfolio with key cards, mobile credentials, and scheduled permissions. Track entries and exits, restrict after-hours access, and revoke credentials instantly — all from one centralized platform.
Video Surveillance
Monitor every building remotely
View live and recorded camera feeds across your entire portfolio from a single dashboard. High-definition cameras cover entrances, parking areas, common spaces, and perimeters — giving you complete visibility day and night.
User Management
Control who has access
Manage tenant and vendor access without relying on shared codes. Assign unique credentials, set authority levels, schedule access windows, and track who armed or disarmed the system and when — all from one centralized platform.
When Something Happens, Every Second Matters
Event Detected
A protected door, motion detector, panic device, or other security sensor triggers an event at your property.
Signal Received
The security system communicates the alarm event to the professional monitoring center.
Response Initiated
Monitoring personnel follow established procedures to contact designated representatives and, when appropriate, request emergency response.
Advanced Technology Is Better With Local Support
Local technicians working throughout LA County
Local Technicians. Local Service. Decades of Experience.
When you call USA Alarm Systems, you're working with a local company that knows the communities, buildings, and properties we protect. Our technicians live and work throughout Los Angeles County — they understand local codes, ordinances, permitting requirements, and the practical security challenges property managers face every day. Professional installation is only the beginning. We're here when your system needs service, expansion, or upgrades — backed by decades of experience protecting Southern California properties.
Years of Experience
An established security company property managers can depend on.
Technicians
Service from technicians working throughout the communities we protect.
Knowledge
Experience with local requirements, ordinances, permitting, and commercial properties.
Support
Professional installation is only the beginning. We're here for service and upgrades.
Protect Your Properties With a Local Security Company That's Been Here for Decades
Your property security system should protect more than doors and windows. It should give you greater awareness, greater control, and confidence that experienced professionals are there when you need them.
Serving commercial and multi-tenant properties throughout Los Angeles County, San Gabriel Valley, San Fernando Valley & Santa Clarita Valley.