Assess the South Gate property
Review risks, blind spots, doors, existing infrastructure, network, power, and access conditions.
Hello, South Gate
Professional security system installation in South Gate.
Three Factor Security installs and supports video surveillance, intrusion alarms, intercom systems, controlled doors and gates, and monitored security solutions for homes, businesses, communities, warehouses, offices, and mixed-use properties in South Gate.
- ★ 4.9 ratingHundreds of client reviews
- 10,000+Systems installed & serviced
- Since 2008Family-owned
- CSLB #1094834C-7 licensed, bonded & insured
- BSIS ACO #8164Licensed alarm company
South Gate security systems
Built for how South Gate properties actually operate.
Properties throughout South Gate and surrounding communities have very different schedules and risks, including residential, commercial, industrial, multifamily, retail, and institutional properties. We plan each camera view, alarm area, access point, and visitor workflow around real operating conditions and the evidence or response the client needs.
The property, infrastructure, operating schedule, users, and response requirements determine the appropriate system design.
Our work includes clean installation, system programming, mobile and desktop access, recording verification, staff training, documentation, troubleshooting, upgrades, and optional preventive security maintenance.
Representative Southern California field work
Local planning backed by hands-on installation experience.
For South Gate, we plan around the property in front of us and bring the same field standards shown in these authentic regional installations. Our experience spans urban commercial properties, active business environments, industrial operations, and residential sites. Images show Three Factor Security work completed elsewhere in Southern California and are selected to match the broad property context—not to represent a specific address in South Gate.
Commercial • Industrial • ResidentialAssessment • Design • InstallationMonitoring • Service • Response
Fieldwork inWest Hollywood
Fieldwork inCosta MesaAvailable in South Gate
Complete security services from one team.
Security Camera Systems in South Gate
Cameras placed for the views you actually need, with clear footage you can check from your phone.
Explore service →Live Monitoring & Remote Site Surveillance in South Gate
Construction sites and vacant properties, watched from a UL-listed, Five Diamond central station.
Explore service →Virtual Security Guard & Incident Response in South Gate
Virtual guarding through our UL-listed monitoring partner: live remote patrols, verified events, and audio talk-down.
Explore service →Alarm Systems in South Gate
Alarm systems that are simple to arm, easy to verify, and ready for monitoring.
Explore service →Intercom Systems in South Gate
See and talk to visitors before you open the door or gate.
Explore service →Access Control Systems in South Gate
Card, fob, and phone access for doors, gates, and garages, with permissions you control.
Explore service →Early Detection Systems in South Gate
AI analytics and thermal sensing that flag a problem while it is still developing, not after the damage is done.
Explore service →Gates, Fencing & Perimeter Security in South Gate
Pedestrian and vehicle gates, fencing, and gate operators, tied into your access control and intercoms.
Explore service →Security Audio & Emergency Communication Systems in South Gate
Speakers, paging, and talk-down so your team can warn people and direct them in real time.
Explore service →Security System Upgrades & Modernization in South Gate
Upgrades for older systems that are unreliable, unsupported, or never documented, keeping whatever still works.
Explore service →Consulting & System Design in South Gate
An honest audit of what you have and what is missing, plus a plan you can budget in phases.
Explore service →Preventive Maintenance & System Health in South Gate
Scheduled inspections, cleaning, and testing, so problems get caught before you need the footage.
Explore service →Your local project
From site walk to system handoff.
Design the system
Choose the equipment, map the coverage, and plan for what you will add later.
Install & commission
Install it cleanly, test everything, set up your phones, and walk your team through it.
Support after handoff
Stay available for service, maintenance, and upgrades after the install.
Nearby service areas
Free assessment
Plan your security in South Gate.
Tell us how to reach you and what you need. Here’s what happens next:
- We call you.A short phone consultation about the property and what you need.
- We visit if it helps.For qualifying projects, we review the property on site.
- You get an estimate.Verbal or written. Scope and pricing are agreed in writing before any paid work.
Family-owned since 2008 · Licensed, bonded and insured · CA CSLB #1094834 (C-7) · CA BSIS ACO #8164 (Alarm)
Begin with a professional assessment