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Serving the Greater St. Louis Area for 30 Years


At Century Alarm, we take your security seriously.  If you have been considering a security system for your home or business give us a call or send us an email.  You will be surprised at our affordable solutions.

The 2GIG Self Contained wireless Alarm System is our feature product.  This system is on the cutting edge of  advancement in the security industry.  It's state of the art design and features make it the optimal choice for home or business security. 

Did you know you can qualify for an insurance discount if you have your property protected by a licensed alarm service?  We issue Certificates to your insurance company for systems we install and monitor.  The savings can be substantial, and in some cases even pay for the monitoring fees.

We also specialize in video surveillance systems for home and business

Have you considered all the reasons a security system will benefit you or your business ?

Why should I have a security system for my home or business ?

We want to help Protect you, your loved ones and your property, You can count on us for your security needs.  Contact us for a free quote today.















2 GIG Wireless Systems

Cutting Edge Features

Self-Contained Security And Home Automation System

GSM Radio And Z-Wave Chip

Employs GO!Control, The Most Advanced System On The Market

Interactive Color Touch Screen Panel


Open User Manual

Control The System From Your Smartphone Or The Internet