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Troubleshooting Motion Detector Battery Issues

Motion detectors play an essential role in the security of your home or business,…

How to Change Your Glass Break Detector Battery

A glass break detector is an important component of a reliable home security system….

Changing the Backup Battery for Your Smith Thompson Home Security System

You’ve noticed an illuminated trouble light on your Smith Thompson Home Security system alarm…

Checking Your System Power

To operate correctly, your Smith Thompson security system requires a direct connection to a…

Vacation Home Security Checklist

Going on Vacation? Check Out Our Home Security Checklist Before You Leave

How Smoke Detectors Save Lives – Home Security and Monitoring

Everything you need to know about smoke detectors Smoke alarms are a vital part…

Family Owned & Operated since 1978 in Texas

We own and operate our own UL listed dispatch center right here in Texas, and that’s how we’re able to offer high quality monitoring at a great price. We are the largest independent alarm company in Texas.

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What our customers say

100% Satisfied

From the first phone call to the actual use of our security system we have been 100% satisfied! The technician was knowledgeable and courteous. He was able to answer all my questions and get the system up and running in no time. Thank you Smith Thompson Home Security for making our home more secure and at an affordable price to do so!!!!

Happy Customer Dallas, TX

We had a great experience with Smith Thompson

Recently for our home in downtown Houston! I was referred to Smith Thompson by a friend after expressing frustration with some of the larger brands that lock you into a 3-year contract. We called to inquire about the most cost-effective…

Excited Customer Houston, Texas

Official Home Security Company of the Dallas Mavericks