Assess the Downey property
Review risks, blind spots, doors, existing infrastructure, network, power, and access conditions.
Hello, Downey
Professional security system installation in Downey.
Three Factor Security serves Downey and surrounding communities with professional security camera systems, burglar alarm installation, video intercoms, access control, perimeter protection, and system maintenance.
- ★ 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
Downey security systems
Built for how Downey properties actually operate.
Downey includes residential, commercial, industrial, multifamily, retail, and institutional properties. A useful system must capture identifiable video, detect activity at the right point, control the appropriate entrances, and provide a clear response path for residents, staff, managers, or approved contacts.
The property, infrastructure, operating schedule, users, and response requirements determine the appropriate system design.
We assess existing wiring and equipment first, then recommend a focused combination of cameras, alarms, intercoms, gate controls, monitoring, storage, and backup power that can be supported over time.
Representative Southern California field work
Local planning backed by hands-on installation experience.
For Downey, 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 Downey.
Commercial • Industrial • ResidentialAssessment • Design • InstallationMonitoring • Service • Response
Fieldwork inLomita
Fieldwork inSan Juan CapistranoAvailable in Downey
Complete security services from one team.
Security Camera Systems in Downey
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 Downey
Construction sites and vacant properties, watched from a UL-listed, Five Diamond central station.
Explore service →Virtual Security Guard & Incident Response in Downey
Virtual guarding through our UL-listed monitoring partner: live remote patrols, verified events, and audio talk-down.
Explore service →Alarm Systems in Downey
Alarm systems that are simple to arm, easy to verify, and ready for monitoring.
Explore service →Intercom Systems in Downey
See and talk to visitors before you open the door or gate.
Explore service →Access Control Systems in Downey
Card, fob, and phone access for doors, gates, and garages, with permissions you control.
Explore service →Early Detection Systems in Downey
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 Downey
Pedestrian and vehicle gates, fencing, and gate operators, tied into your access control and intercoms.
Explore service →Security Audio & Emergency Communication Systems in Downey
Speakers, paging, and talk-down so your team can warn people and direct them in real time.
Explore service →Security System Upgrades & Modernization in Downey
Upgrades for older systems that are unreliable, unsupported, or never documented, keeping whatever still works.
Explore service →Consulting & System Design in Downey
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 Downey
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 Downey.
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