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Products

Motion Detector

Triggers your alarm system when it senses motion. Must be mounted 6-7 feet from...

$99 Learn More

LCD Keypad

Slim-line landscape keypad with LCD screen and digital clock. Features include Stay or Away...

$99 Learn More

Backup Battery

Allow the alarm system to function in the event of a power outage. 4″...

$25 Learn More

Keyfob Remote

Allows you to operate your system from anywhere inside of your home, without being...

$49 Learn More

Wireless Receiver Module

This is the device that all of your wireless sensors connect to. Examples would...

$49 Learn More

Master Control Panel

The main computer panel that all of the alarm wires are connected to. 9.25″...

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Family Owned Dallas Home Security Company Since 1978

We own and operate our own UL listed dispatch center right here in Dallas, Texas. That’s how we’re able to offer high quality home security & alarm monitoring at a great price. We are the largest independent alarm company in Texas, family owned & operated since 1978.

No Contracts. No Price Increases.

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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