Smoke & Heat Detector

Smoke & Heat Detector

Triggers your alarm system when heat or smoke is detected. In order to add a monitored smoke detector, your house must first be up to Texas fire code. That can be achieved using battery operated non monitored smoke detectors found at hardware stores like Lowe’s or Home Depot, for as low as $10 ea. As a general rule, the Texas fire code requires a smoke detector (non monitored or monitored) in every room, bedroom, and hallway. Our recommendation is to achieve code by purchasing and installing non monitored smoke detectors first, and then have us install 1 or 2 monitored smoke detectors.


For liability reasons, and to uphold your warranty, Smith Thompson will only install equipment that is purchased from Smith Thompson.

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.

No Contracts. No Price Increases.

Get a Quote today!

  • One of our dedicated support team will contact you to customize a solution just for you.
  • This field is for validation purposes and should be left unchanged.

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
As Seen On
As Heard On

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