School of Lock and Electronic Security

Expert Electronic Security and Locksmith Training

Re-Key Kits – 12 VDC Power – Key Machines – Low Volt Wiring – Master Key Locks – Terminate CAT 5 Cables –  Deadbolt Installs – POE Cameras and NVR – Live Alarm Panel Connections at Each Desk


Next In Person Classes:

25E Locksmith Technician – April 5 and 6, 2023

30E/ 35E Electronic Security Tech – April 19 and 20, 2023

Electric Strike/Mag Lock Installation – April 26, 2023

Check The Drop-Down Box For Complete 3 Month Schedule.


Free On-line ClassThe Meter – Go To Courses. Class is at the bottom.


Coming Soon: Advanced Locksmith Classes – Master Keying, IC Core, Safe Locks, Access Control, Basic Auto, Storefront Doors and More!


Please Check Out the Gallery (Top). We Teach Everything You See!


In 1992 Our Instructor Was Awarded Certified Master Locksmith!

Take a Class From a Technician With Over 40 Years of Experience In Security.

Hands-on Training

Hands-on training courses in Mag Lock and Electric Strike Installation; 25E Entry Level Locksmith; 35E Electronic Security Technician and 39E Electronic Security Sales.

Real World Examples

These Courses Are Based Upon Actual Installations That Professional Locksmiths and Electronic Security Technicians Perform Every Day!

State-of-the-Art Facilities

Each Desk Has 12VDC, 24VAC, POE Ports and BNC Termination to Hybrid DVRs. Each Desk Has Terminal Strips Wired to a Live Honeywell Alarm System.

In-Person Classes

We offer a variety of hands-on courses. See the schedule for upcoming class dates below.

10-15-19 Workstation3

35E Electronic Security Technician​

Hands-on course. Students wire, terminate, program and test multiple security devices. Each desk has 12/24 volt, POE and BNC inputs, 4 live alarm connections. Virginia DCJS 30E/35E Electronic Security Technician Course.
Price: $275

Key Machines

25E Locksmith Technician

Hands-on course for all locksmiths. Mechanical and Low Volt Training. Re-key Cylinders, Install Deadbolts. Electric Strike-Mag Installation. Virginia DCJS 25E Locksmith Technician Course.
Price: $295

Alarm Training

39E Electronic Security Sales

Virginia DCJS 30E Code and 39E Electronic Security Sales Courses.
Price: $150

Electric Strike - Magnetic Lock Installation

Each mag lock or electric strike is cut into a new Wood, Steel or Aluminum frame. The replacement frame inserts allow every student a new installation.
Price: $150

DCJS Online Registration Renewal Classes

Choose any 25i or 30i course from our catalog. All courses provide DCJS Registration Renewal.


DCJS 25i – Locksmith

Lessons Include: Wireless Access Control, Securing School Doors, Glass Door Hardware, Mag Locks and Electric Strikes.


DCJS 30i – Electronic Security Core Subjects

Lessons Include: Network (IP) Camera Systems, Biometric Access Control, Wireless Data Transfer and Delayed Egress Systems.


DCJS 25i – Master Keying

An introduction into the re-key and master key process. We explain how to create 2 manually constructed master key systems. Computer generated master key systems are also presented.


DCJS 25i Interchangeable Core

Detailed keying information for Best, Corbin Russwin, Sargent, Schlage and Yale.


DCJS 25i Low Volt Basics – Locksmith Technician

Everything Low Volt! Relays; Timers; Fail Safe/Secure, Current Draw; REX; Inputs; Outputs; Parallel; Series; Momentary/Maintained; Riser Rated; Plenum; Amp-Hour; and more.


DCJS 30i Low Volt Basics – Electronic Security Tech/Sales

Everything Low Volt! Relays; Timers; Fail Safe/Secure, Current Draw; REX; Inputs; Outputs; Parallel; Series; Momentary/Maintained; Riser Rated; Plenum; Amp-Hour; and more.


DCJS 30i – Low Volt Conduit Installation

Learn multiple ways to protect your wiring using Flex, Seal-Tight, PVC, EMT and Wire-mold. We show you some of the available options.

Upcoming Classes

Hands on Technical Training

We provide each student with a powered workstation that allow them to wire, terminate, program and test multiple security devices. Locksmiths will also be furnished with pin kits, lock cylinders, key machines and tools to re-key and master key door locks!
Lunch is included. 

March 8 and 9, 2023

April 5 and 6, 2023

May 3 and 4, 2023

March 22 and 23, 2023

April 19 and 20, 2023

May 17 and 18, 2023

Next Hands-On Class – April 26, 2023 9am – 5pm

Cut a Wood, Aluminum or Steel Frame. Install a Mag Lock.

Now a 25i and 30i In-Service Registration Renewal Course!!

The School of Lock is located at: 6701 Cold Harbor Rd. Mechanicsville, Virginia 23111 (Right Next Door to 7-11)

Meet Your Instructor

Timothy Chrisman, Certified Master Locksmith

Timothy Chrisman, CML is a Master Technician with 35 years of continuous experience in the security industry. 

From 1985-1988 Tim was NCOIC of the Base Locksmith Shop at Warner Robins AFB, Ga.

In 1992, Tim earned “Certified Master Locksmith.”

Installations include over 500 access control and security systems, 2500 cameras, 2000 electric strikes and over 800 mag locks. 

When he’s not teaching locksmith or electronic security classes, Tim is still a full time technician. 

Check Out What Our Students Have To Say!

It was a great class. Hands on environment that was not intimidating and Tim worked directly with each student, whether they had experience or was new to locksmithing. My wife will be attending the next class since she plans to help out in the locksmithing business. I highly recommend the class to anyone who wants to learn the locksmith and electronic security business. He is my go-to mentor!
Alex K.
I attended for my 25E class. I only signed up here because he was the ONLY one to respond to my email. His class was 100% worth the hour drive. It was very hands on, and he always stopped to answer questions. His experience and skill shows through in every aspect of his teaching style. If you are looking for a class, Tim is the teacher you want.
Virgil D.
A great DCJS course! A lot of hands-on experience and training, with a comprehensive workbook. I can't think of a reason to go back to another training school again.
David N.
Tim, put on a awesome class. Nice facility for a Hands on experience. I’ve been in the Locksmith business for many years and have taken many classes and I recommend his School.
Scott C.

Join Our 1000+ Happy Students​ Today!

Certified Master Locksmiths make great instructors and our students can attest to the quality and care of our learning process.