Alert Lock & Key · San Antonio, TX
Commercial
Locksmith Services
Protecting San Antonio businesses since 1976. From master key systems and high-security locks to panic bars and emergency lockouts — we handle every commercial lock need.
Our Services
Complete Commercial Lock Solutions
Master Key Systems
Custom master key systems designed for offices, warehouses, apartment complexes, and multi-tenant buildings. Control who has access to what — with a single master key for management.
- Grand master key systems
- Department sub-masters
- Restricted keyways
- Key control programs
Lock Rekeying & Replacement
Lost keys, employee turnover, or just want a fresh start? We rekey or replace locks on any commercial door quickly and affordably — no need to replace the entire hardware.
- Same-day rekeying
- High-security lock upgrades
- Deadbolt installation
- Mortise lock service
Panic Bars & Exit Devices
Code-compliant panic bar and exit device installation for commercial buildings. We supply and install Von Duprin, Corbin Russwin, Sargent, and other leading brands.
- Panic bar installation
- Exit device repair
- ADA-compliant hardware
- Fire-rated door hardware
High-Security Locks
Upgrade to Medeco, Mul-T-Lock, or Abloy high-security cylinders for maximum pick and drill resistance. Ideal for server rooms, pharmacies, financial offices, and sensitive areas.
- Medeco cylinders
- Mul-T-Lock systems
- Restricted key duplication
- Anti-drill & pick protection
Our Work
Trusted by San Antonio Businesses
Commercial Locks
Deadbolts, mortise & cylindrical
Master Key Systems
Custom keying for any facility
Panic Bars & Exit Devices
Code-compliant exit hardware
Why Alert Lock & Key
San Antonio's Commercial Lock Experts
Since 1976, Alert Lock & Key has been the trusted commercial locksmith for San Antonio businesses of all sizes. From small retail shops to large office complexes, our licensed technicians deliver fast, professional service on every job.
- Licensed & bonded since 1976
- Medeco & Mul-T-Lock certified
- Same-day service available
- All commercial door types
- Free security consultations
- Competitive pricing
Secure Your Business Today
Whether you need a full master key system, a single rekey, or emergency lockout service — we're ready to help. Call now for fast, professional service.
(210) 342-6678Available 24/7 · Bonded & Insured