Choosing the right lock for a commercial property is more complex than picking a residential deadbolt. Commercial locks must meet ANSI Grade 1 standards, comply with fire and ADA codes, and handle hundreds of uses per day. Here's a plain-language breakdown of every major commercial lock type — what it does, where it belongs, and what it costs.
Mortise Lock
Best for: Main entry doors
Cost: $150–$400
Grade: Grade 1
Cylindrical Lock
Best for: Interior office doors
Cost: $80–$200
Grade: Grade 1
Panic Bar
Best for: Fire exits
Cost: $300–$800
Grade: Required by code
Access Control
Best for: Secure areas
Cost: $150–$400+
Grade: Varies
Master Key System
Best for: Multi-tenant buildings
Cost: $800–$5,000+
Grade: Grade 1
High-Security Lock
Best for: Server rooms, cash offices
Cost: $200–$600
Grade: Grade 1 + pick-resistant
Mortise Locks
A mortise lock is the gold standard for commercial main entry doors. The lock body is recessed into a pocket (the mortise) cut into the door edge, making it far more resistant to forced entry than a cylindrical lock. Mortise locks are available in multiple functions — entry, storeroom, classroom, office — and accept interchangeable cylinders, making them ideal for master key systems. Expect to pay $150–$400 installed per door.
Cylindrical (Bored) Locks
Cylindrical locks are the most common commercial lock for interior office doors, conference rooms, and storage areas. They're faster to install than mortise locks and cost less ($80–$200 installed), but they're not suitable for high-traffic main entries. Schlage ND series and Best 9K series are the industry workhorses — both are Grade 1 and accept interchangeable cores for easy rekeying.
Panic Bars (Exit Devices)
California fire code requires a panic bar on any door designated as a fire exit in a commercial occupancy. Panic bars allow anyone to exit quickly by pushing a horizontal bar — no key, no turning, no fumbling. They can be configured with an exterior trim (key or lever) for entry. Von Duprin and Detex are the leading brands. Cost runs $300–$800 installed depending on the door type and trim.
Electronic Access Control
Electronic access control replaces physical keys with credentials — key cards, fobs, PIN codes, or mobile apps. Standalone keypad locks (Schlage CO series, Alarm Lock Trilogy) work without network infrastructure and are ideal for small businesses. Networked systems (Lenel, Honeywell, Brivo) allow real-time access management, audit trails, and remote lockdown. We install and service both types throughout Contra Costa County.
Master Key Systems
A master key system allows different keys to open different combinations of locks — a tenant key opens only their suite, while a property manager's master key opens every door in the building. Properly designed master key systems use restricted keyways to prevent unauthorized duplication. We design and install master key systems for offices, apartment complexes, and multi-tenant buildings of all sizes.
High-Security Locks
For server rooms, cash offices, pharmacies, and other sensitive areas, high-security locks add pick resistance, drill resistance, and key control beyond what standard Grade 1 hardware provides. Medeco, Mul-T-Lock, and ASSA Abloy are the leading brands. These locks use patented keyways that require written authorization to duplicate — a critical feature when key control is paramount.
We service businesses across Pleasant Hill, Concord, Walnut Creek, Martinez, and all of Contra Costa County. See our full commercial locksmith services.
Commercial Locksmith Services Near You
We install and service all commercial lock types throughout Contra Costa County.
Frequently Asked Questions
What is the difference between a commercial and residential lock?
Commercial locks are built to ANSI Grade 1 standards and designed for high-traffic use — they must withstand 250,000+ cycles. They're typically heavier, more durable, and offer more function options (storeroom, classroom, entry, etc.) than residential hardware. They also often need to meet fire code and ADA requirements.
Do I need a panic bar on my business door?
If your door is designated as a fire exit, California fire code requires a panic bar (exit device). This applies to most commercial occupancies. Panic bars allow anyone to exit quickly without a key, even in an emergency. We can assess your doors and advise on what's required for your specific occupancy type.
How much does a master key system cost for a small business?
A basic master key system for a 5–10 door office runs $500–$1,200 installed, depending on the hardware specified. We use Schlage commercial cylinders for most small business systems. Larger systems with restricted keyways and high-security cylinders cost more but provide better key control.
Can I add electronic access control to my existing doors?
Yes — most commercial doors can be retrofitted with electronic access control without replacing the door or frame. We install standalone keypad locks, card reader systems, and networked access control for businesses of all sizes. We'll assess your doors and recommend the right system for your needs and budget.
What is key control and why does it matter?
Key control means restricting who can duplicate your keys. Standard keys can be copied at any hardware store. Restricted keyways (used in high-security systems like Medeco and Mul-T-Lock) require written authorization from the property owner to duplicate. For businesses with sensitive areas, key control is essential to prevent unauthorized access.