Limited Time Special Offer

Free Smart Thermostat with Alarm Installation. Contact us for more detail.

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You might be surprised at how competitively priced we are!

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Bank Equipment

Bank Equipment

When it comes to banking, you want your branch to be safe and secure. At Commercial Safe and Lock, there are many ways we can help. We specialize in: Access Control Systems: We have many options to find the best

Doors

Doors

A door can become an eyesore, or not function correctly if not installed properly. Our technicians are trained, certified, and always continuing their education. We work efficiently on any repairs and/or installations. Our work is accurate and precise so that

Keys & Locks

Keys & Locks

We repair, install, and rekey to make your place of business more secure and efficient. Some of our products/services we specialize in: Access Control System Keyless Entry Patented Keyway, for Maximum Security Repair and/or rekey office furniture

Home Security

Home Security

Smarter Home Security at your Fingertips! Automate, control and secure your home with our control panels, sensors, cameras, and smart home capabilities all from your phone. Build a package that is right for you. Choose from many different features and

About Us

About Us

We are family owned and operated and have been taking care of our clients for over 24 years! We were established in 1995 by Charlie Duncan. Patrick Duncan (Owner), has been following in his fathers footsteps learning the business since

Contact Us

Contact Us

Please give us a call, or fill out the form below and we will get back to you as soon as possible 636-282-5625 (LOCK).

Our Work

Ballistic Rated Glass

Check out this ballistic rated  glass entryway we installed.  It looks beautiful and offers them extra protection and security. 

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Testimonial

We just had a home security system installed and we LOVE it! We were able to customize and get all the features we want. The system is easy to use, and it was nice not to make my husband have to install it. The technician was very professional and friendly. I would recommend CSL to anyone looking for a home security system!

Jeanna B.
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