Divisions of the Mueller Management Company

   ACF Alarm Co. Inc.

   Sentry Security

We offer the highest quality installation and service of the following systems:

• Burglar Alarms

• Fire Systems

• Closed Circuit TV

• Access Control for Doors, Gates, etc.

• Monitoring Service

This service is owned and operated at our own facility, providing you with the best of both world's, in one great central location.

You can now get your service from the most comprehensive, cost-effective Alarm Service available - ACF Alarm.

Sentry Security Agency, Inc. (St. Louis Security) has been providing all types of:

• on-site security guards for commercial and residential customers

• background checks

throughout the metropolitan area for 40 years.

Sentry Security was founded in the mid 1960’s by John R. (Dick) Mueller, Sr.

All personnel are required to sign an agreement that covers conduct, uniform requirements, attendance, training,  performance of duties, and to obtain a security license with the police department.

Please contact us to have a service representative contact you immediately to help determine your needs.

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