Keeping Missouri Residents Safe Since 1983

Choose an experienced security system company in Arnold & Chesterfield, MO

Trinity Security Inc. is a full-service security system company located in Arnold, MO. Our technicians can install a reliable security system at your residential or commercial property. If you need security cameras, fire alarms or burglar alarms installed, we can make it happen. You can count on us to design a security system that will allow you to monitor every corner of your property, at any time, from anywhere.

Call 314-966-2443 now to get your free estimate and arrange for security camera system installation services. If you need an access control system installed, we can handle that, too.

3 great reasons to choose Trinity Security

Planning to install a burglar alarm system? We can help. Trinity Security can install a state-of-the-art security system on your property in ArnoldĀ or Chesterfield, MO. You should make us your go-to security system company because:

We have over 36 years of security system installation experience
We offer residential and commercial security system services
We provide free estimates


Contact us today to schedule burglar or fire alarm system installation services.

Camera Systems

We install top-of-the-line security camera systems.

Camera Systems

Burglar Alarm Systems

Hire us to install burglar alarms in your home or business

Burglar Alarm Systems

Fire Systems

It's time to replace your outdated fire alarm system.

Fire Systems

Testimonials

See what customers have to say about us.

Testimonials


Detect Deadly Fires Fast

Turn to Trinity Security for fire alarm installation services