Expert Access Control Solutions
AD Security, Inc. designs and installs access control systems that give you complete control over who enters your property, when they enter, and where they go. From single-door card readers to enterprise-wide networked platforms, we deliver systems tailored to your security requirements and budget. With over 20 years of experience across Southern California, we've secured office buildings, multi-tenant complexes, HOA communities, warehouses, healthcare facilities, and retail locations. Learn more about our team and history.
Card Reader Systems
Proximity card and smart card readers for reliable, contactless entry at any door, gate, or elevator.
- HID proximity cards and key fobs
- Smart card readers (MIFARE, DESFire)
- Multi-technology readers
- Wiegand and OSDP compatible
Keypad & PIN Entry
Standalone and networked keypad systems for code-based access without the need for physical credentials.
- Standalone single-door keypads
- Networked multi-door keypads
- Combination keypad + card readers
- Programmable user codes with time schedules
Mobile Credential Access
Smartphone-based entry using Bluetooth or NFC, replacing traditional cards and fobs with your phone.
- Bluetooth Low Energy (BLE) readers
- NFC tap-to-enter
- Cloud-managed mobile credentials
- Remote access granting for visitors
Biometric Systems
High-security biometric readers for restricted areas requiring identity verification beyond cards or codes.
- Fingerprint readers
- Facial recognition terminals
- Iris scanning systems
- Multi-factor authentication (biometric + card)
Intercom & Video Entry
Telephone entry systems and video intercoms for visitor management at gates, lobbies, and building entrances.
- Telephone entry systems (DoorKing, Linear)
- Video intercom with smartphone integration
- Multi-tenant directory systems
- SIP-based IP intercoms
Turnstile & Lobby Gates
Controlled pedestrian access for office lobbies, campuses, and high-traffic commercial environments.
- Optical turnstiles
- Full-height turnstiles
- Swing barrier gates
- Badge and credential integration
Access Control System Comparison
Compare the most common access control technologies to find the right fit for your property.
| Card Reader | Keypad | Mobile | Biometric | Intercom | |
|---|---|---|---|---|---|
| Best For | Offices, buildings | Gates, storage | Multi-tenant, modern offices | Restricted areas, labs | Gated communities, lobbies |
| Security Level | High | Medium | High | Very High | Medium |
| User Convenience | High | Medium | Very High | High | Medium |
| Credential Management | Issue/revoke cards | Change codes | Remote via app | Enroll biometrics | Directory updates |
| Audit Trail | Yes | Limited | Yes | Yes | Limited |
| Typical Cost Per Door | $1,500 - $3,000 | $800 - $2,000 | $2,000 - $4,000 | $3,000 - $6,000 | $2,000 - $5,000 |
How It Works
Every project starts with a free site survey where we walk your property and assess every door, gate, and entry point. We evaluate existing hardware, wiring, and network infrastructure to determine what can be reused. From there, we design a custom system with a detailed proposal covering equipment specs, door schedules, and clear pricing.
Our licensed technicians handle the full installation, running clean cable paths and mounting hardware with minimal disruption to your operations. Once installed, we program access zones, time schedules, and user permissions, then test every door for proper lock and unlock behavior, emergency override, and power failure response.
Before we leave, we train your team on the management portal so you're confident adding users, pulling reports, and handling lockouts from day one. After go-live, we provide warranty coverage, firmware updates, credential management, and 24/7 emergency support.
Industries We Serve
We design access control systems for commercial offices (lobbies, server rooms, elevator controls, visitor management), multi-tenant buildings and HOA communities (gate entry, parking, common areas, remote credential management for property managers), and healthcare facilities (HIPAA-aware solutions, biometric authentication for pharmacies and labs, full audit trails for compliance).
Our systems also serve warehouses and industrial facilities with rugged hardware for loading docks and perimeter gates, retail and hospitality properties needing back-of-house access control, and education and government campuses requiring lockdown capabilities, visitor management, and integration with emergency notification systems.
Access Control Brands We Install
As a certified access control installer in Los Angeles County, we are authorized dealers for industry-leading brands including DoorKing (DKS) telephone entry and access control, HID Global card readers and credentials, Linear (Nortek) access systems, Honeywell commercial security, Keri Systems access control, Paxton networked systems, Brivo cloud-based access, Openpath mobile access, PDK (ProdataKey) cloud controllers, and Aiphone video intercoms.
Professional access control installation and service for offices, multi-tenant properties, gated communities, warehouses, and commercial facilities throughout Southern California. Our factory-trained technicians ensure proper installation, system configuration, and ongoing support for all major access control platforms.
What Our Access Control Clients Say
"We manage 14 properties and AD Security handles all of our access control. Their team is responsive, knows the equipment inside out, and their pricing has stayed fair for over five years."
"Outstanding service for our commercial property. The access control system has enhanced our security significantly. Highly recommend AD Security, Inc.!"
"The turnstile gate they installed in our office lobby completely changed how we manage visitor access. Clean installation, minimal downtime, and the system integrates with our existing badges."
Our Access Control Portfolio
Frequently Asked Questions
Access control costs depend on the system type and number of doors. A single-door keypad or card reader setup typically starts at $1,500 to $3,000. Multi-door commercial systems with networked controllers, mobile credentials, and software licensing can range from $5,000 to $25,000 or more. We provide free on-site assessments to give you an accurate quote.
For multi-tenant buildings, we recommend cloud-based systems with mobile credentials from brands like DoorKing or HID. These allow property managers to add or revoke access remotely, set time-based schedules per tenant, and generate audit logs. Integration with intercom and video entry gives tenants the ability to grant visitor access from their phone.
Yes. We specialize in integrating access control with automatic gates, magnetic locks, electric strikes, elevator controls, and existing security systems. Our technicians evaluate your current setup and recommend compatible hardware to avoid unnecessary replacement costs.
Card readers use proximity cards or key fobs for tap-to-enter access. Keypads require a PIN code. Biometric systems use fingerprints, facial recognition, or iris scans. Card readers and mobile credentials are the most common for commercial properties due to their balance of security and convenience. Biometric systems offer the highest security but cost more and are typically used for restricted areas.
Yes. We provide ongoing maintenance, troubleshooting, and system updates for all access control systems we install. This includes firmware updates, credential management, hardware replacement, and 24/7 emergency support if your system goes down.
All systems we install include battery backup for controllers to maintain operation during short outages. Lock hardware is configured as either fail-safe (unlocks during power loss, typical for fire exits) or fail-secure (remains locked, typical for secure areas), depending on building code and your security requirements. We also install manual key override cylinders as a backup.
A single-door installation is usually completed in a few hours. A multi-door commercial system with networking, controllers, and software configuration typically takes 2 to 5 days depending on the scope. We schedule installations to minimize disruption to your operations and can work after hours when needed.
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Covina, CA 91723
Serving Southern California since 2004