| News & Events | 2019 | December

Month: December 2019 Support

Troubleshooting Motion Detector Battery Issues

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

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How to Change Your Glass Break Detector Battery

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

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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…

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Checking Your System Power

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

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Family Owned Dallas Home Security Company Since 1978

We are the largest independent alarm company in Texas, family owned and operated since 1978. Two generations of family are on the job, and now offering multiple home services.

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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
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We've had the same 16.95 rate for 45 years!