Contact AD Security, Inc.
Reliable Security System Solutions, Gate Installations & Gate Repair
Whether you need a new automatic gate installation, access control system, surveillance camera setup, or emergency repair service, our team is ready to help. Based in Covina and serving Los Angeles, Orange, Ventura, Santa Barbara, San Bernardino, Riverside, and San Diego Counties, AD Security, Inc. has been providing professional security solutions to homes and businesses across Southern California since 2004. Fill out the form below or call us directly for a free estimate. We typically respond within 24 hours on business days.
Get In Touch
24/7 Emergency Service Available
Covina, CA 91723
Emergency service available after hours
Trusted by Southern California since 2004
What Happens After You Reach Out
Tell us about the project
Call or send the form. It helps to know the type of system, whether it is a new installation or a repair, roughly how many doors, gates, or cameras are involved, and the brand of your existing equipment for repairs. Photos of the site are always welcome.
On-site assessment
We typically respond within 24 hours on business days. Gates, cameras, and access control all depend on your property's sight lines, wiring paths, and entry points, so we quote from a walk-through rather than a guess over the phone.
Written estimate
You receive a written estimate that spells out equipment, labor, and warranty before any work begins, with no hidden fees. Estimates are always free.
What We Install and Service
AD Security, Inc. is a licensed California contractor, CSLB #974487, serving Southern California homes and businesses since 2004.
Automatic Gates
Installation and repair of sliding, swinging, tilt-up, roll-up, accordion, and tandem gates in steel and wood.
Explore gate servicesAccess Control
Card readers, keypads, mobile credentials, telephone entry, video intercoms, and turnstiles.
Explore access controlSecurity Cameras
Camera systems for homes, HOAs, and commercial facilities, including NDAA-compliant installations.
Explore camera servicesWe also handle automatic door operators, network and premise cabling, and commercial audio/video.
Where We Work
Based in Covina and serving Los Angeles, Orange, Ventura, Santa Barbara, San Bernardino, Riverside, and San Diego Counties. Most of our work is in the San Gabriel Valley and greater Los Angeles area, including:
Common Questions
How long has AD Security been in business?
We have been installing and servicing security systems across Southern California since 2004, over twenty years of gates, access control, and cameras, along with automatic door operators, network and premise cabling, and commercial audio/video.
Are you licensed?
Yes. AD Security, Inc. holds California State Contractors License #974487. In California, any security or gate project over $1,000 in combined labor and materials legally requires a licensed contractor, and you can verify any license number free at cslb.ca.gov.
Do you charge for estimates?
Written estimates are free. Most new installations start with an on-site assessment so the quote reflects your actual property.
Do you offer emergency service?
Yes. Our regular hours are Monday through Friday, 9:00 AM to 5:00 PM, and emergency service is available after hours. A gate stuck open or closed is exactly the kind of call to make right away: (626) 421-7250. See our gate repair service for what a repair visit looks like.