Home Security

24 Hour Texas Based Monitoring. No Outsourcing. No Contracts.

Whether you already have a system, or would like a new one installed, we have you covered with options starting at $16.95/mo & No Contract. Same rate since ’78!

3 Flexible Security Plans

Zero Contracts!
Plan 1 $16.95 per month

Wireless Monitoring

  • $89 one-time cost
  • NO TERM CONTRACT
  • Use your existing system
  • 24/7 private monitoring
  • LTE/5G ready cellular + Wi-Fi Connection
  • Professional Installation
  • Same Rate Since ‘78
Compatible systems we can takeover
DSC 1616
HONEYWELL 15p / 20p
Need a new basic system installed? Give us a call, or try our build & price. Build & price
Does your system look different? Text us a photo and we’ll check compatibility 972-597-1911
Plan 2 $21.95 per month

Wireless Monitoring + Arm/Disarm App

  • Upgraded Cellular + Wi-Fi Transmitter
  • Arm/Disarm App Control w/ Notifications
  • $89 one-time cost
  • NO TERM CONTRACT
  • Use your existing system
  • 24/7 private monitoring
  • LTE/5G ready cellular + Wi-Fi Connection
  • Professional Installation
Control your existing SYSTEM from your phone!
Compatible systems we can takeover
DSC 1616
HONEYWELL 15p / 20p
Need a new basic system installed? Give us a call, or try our build & price. Build & price
Does your system look different? Text us a photo and we’ll check compatibility 972-597-1911
Plan 3 $29.95 per month

Smart Home Security & Automation

  • 7” Touchscreen Keypad Hub
  • Built-in Camera & Glassbreak
  • 1 Encrypted Power G Motion or Glass Break Sensor
  • 3 Encrypted Power G Door Sensors or Sensor Takeover Module
  • Expandable w/cameras, thermostats, lights, locks all from 1 app.
  • Professional Installation
  • 24/7 private monitoring
  • LTE/5G ready cellular + Wifi Connection
EQUIPMENT PRICING $399 Or $16/mo
Regular price is $499 financed, min. payment of about $16/mo. for qualified buyers. If you pay upfront you get $100 off, making it $399.
MONITORING RATE (NO CONTRACT) $29.95/mo


12 Months No Interest

Same as cash financing available!


*** For the “i” icon and tooltip notice, add this html snippet into the necessary table cell. Pls edit only the placeholder text “Lorem ipsum…” within html to add your content instead. Don’t change or remove any other symbols, elements and tags in the html markup.
<span class="icon">
<i class="fas fa-info-circle"></i>
<div class="tooltip-block">
<div class="tooltip-block-desc">Lorem ipsum...
</div>
</div>
</span>

Plan 1Plan 2Plan 3
Compare PlansMOST ECONOMICAL
$16.95 ER MONTH
BEST MID-RANGE
$21.95
PER MONTH
FUTURE PROOF YOUR HOME
$29.95
PER MONTH
Min. Start-up Cost
This is the most common equipment startup cost. No high pressure sales people here.
$89$89$499 – 12 Month Same as Cash
Or get $100 off when paid upfront!
No Contract
If you don’t like us, fire us! We are confident we can keep you with great service though.
Wireless. No Phone Line Needed
Even if your phone line is cut, and power goes out, you are still covered 24/7 by cellular connection.
24hr Monitoring
Continuous coverage by our privately-owned UL Certified central station.
Insurance Discount
Because our central station is UL Certified, you will qualify for the maximum insurance discount.
Arm/Disarm App Control
Arm your system right from your smartphone using our app. Includes Stay and Away arming feature.
System History in App
View exactly when your system was armed, disarmed, or when it was triggered.
Push, Text & Email Notifications
Get notified when a specific door or zone is opened and closed, or when it’s armed, disarmed, triggered.
Dual Path- with Wi-Fi Connection
Wi-Fi connected systems are much faster. Also provides an extra layer of protection if cell signal drops in your area.
Works with Indoor / Outdoor Cameras
Our cameras work in unison with the alarm system. If the alarm is triggered, cameras automatically record.
Works with Video Doorbell
View live feed and answer door from your touchscreen keypad, or phone. Keep tabs on deliveries.
Works with Z Wave Devices
The built-in Z Wave hub connects lights, locks, thermostats, garage, into 1 app for a fully connected experience.
Control Home from 1 App
A true smart home is controlled from a single app. Where all devices talk to each other, and work together.
128 Bit Encryption
Our smart sensors use bank-grade encryption. Frequency Hopping Spread Spectrum, and 128 Bit AES Encryption.
Smash & Crash Protection
Our smart panel will still send emergency signals even if completely destroyed by an intruder.
Works with Alexa & Google Home
You can add alarm.com as a skill to make it even easier to control your smart home, hands free.
Power Outage & Restoral Notifications
Receive alerts if your home loses power, and when it’s turned back on.
Arming Reminders
Forget to arm the system, close the garage, or lock door? No problem, our system can remind you.
Unexpected Activity Alerts
Our system learns your patterns. For example: if someone opens a door at an odd time of the day, it’ll let you know.
Automated Schedules
Setup a schedule for your lights and thermostats so you don’t have to remember.
Automatic WiFi Updates
Our smart panel stays current. New features and functionality get pushed directly to your devices.
Power G Compatible
Power G sensors are the best, and that’s what we use. 1-mile range, bank level 128-bit AES encryption.


12 Months No Interest

Same as cash financing available!


Plan 1 and 2 upgrade options

Standard Smartphone Control w/Dual Path Wifi

Arm & Disarm your system from anywhere in the world, including Stay & Away…

$5.00/month Learn More

Smoke & Heat Detector

Triggers your alarm system when heat or smoke is detected. In order to add…

Extra Door/Window Sensors

Contact us to learn more about the Extra Door/Window Sensors. Wireless sensor that can…

Motion Detector

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

Plan 3 upgrade options

HD Slimline Doorbell

1 App– Fully integrated into our alarm app. No more switching between apps! Full Control–…

$199 Learn More

HD Outdoor Camera

WiFi Connected. 1080P & Waterproof Secure Encrypted Cloud Storage Excellent Low Light Perform…

$199 Learn More

Z Wave Smart Thermostat

The Honeywell T6 Z Wave Thermostat provides Alarm.com users complete control over their home’s…

$149 Learn More

HD Indoor Camera

Wifi Connected Pristine video up to 1080P2-Way AudioSecure Encrypted Cloud StorageStream live video or motion…


“Free” alarm systems are the industry’s dirtiest trick.

Companies that give “free” systems are simply hiding the equipment cost in a high monthly rate of $50-$70/mo. We’ve been around since ’78, so we know what parts really cost. That equipment is actually paid off within the first year, but do they lower your rate once it’s paid for? NO. You end up drastically overpaying, and likely for 3-5 years under a contract. “Free” systems are not free. It’s insulting, really.


We offer transparent pricing.

With us, you know what you’re REALLY paying for. The equipment price is separate from the monthly monitoring rate. Once the equipment is paid for (whether you pay upfront for a discount, or finance it), all you have left is our low monthly rate. No contract. If you do the math over a typical 36 month term like most companies require, you’ll find we’re a MUCH better deal.


Setup FAQs

Most of the time it costs little to nothing to update your system. We have a true online quoting system here that can help give you a better idea. Or give us a call, our sales people can usually pinpoint what needs to be done right over the phone. 888-888-1695 Press Option #1

Our technician will collect your first billing cycle of monitoring to get your service started, and you’ll have two options. Monthly Auto-Draft, or you can pay annually and receive 1 free month (pay for 11 and get the 12th free). For your equipment, if you chose to pay upfront the technician will also collect for that. Or if you chose to finance the equipment on 12 months same as cash, you’ll pay the initial minimum monthly payment.

It’s similar to what you’d see at a Best Buy or appliance store. If you pay off your financed equipment total within 12 months, you pay no interest. There’s a low monthly minimum payment requirement, no early payoff penalty, $500 minimum loan amount, and quick credit application that takes seconds to get approved.

There is no contract! Since 1978, we’ve been able to keep our customers with great service. Should you need to stop service though, all we require is 30 days written notice.

Any equipment Smith Thompson installs comes with a 1 year part and labor warranty. If a repair is needed on equipment originally installed by another company, or if you are outside of the 1 year warranty period, it would cost $59 for the service call, plus any parts needed.

Yes! We have a true online quote system here. Or you can give sales a call during business hours, and they’ll be glad to help out. Dial 888-888-1695, press option #1

Not anymore! All new customers are setup with cellular wireless monitoring. Drop that costly landline phone.

A dispatcher immediately calls you on any number you would like us to call. If we don’t receive an answer, the police or fire department are dispatched to your home. If we do receive an answer we verify your password, and at that point you can decide if you want us to dispatch or not. We never charge for false alarms.

Due to the short term nature of apartments, we do not. We recommend looking into SimpliSafe.

If we are taking over a compatible system about 45 min – 1.5 hours. If we are installing a new system from scratch about 2 hrs.

Yes, most cities and towns have ordinances requiring you to register your alarm with your local police department. Contact your local police department or city hall to obtain your permit application. Once registered, be sure to call and give us your permit number. IMPORTANT: Most police departments will not respond to your alarm without a permit!

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

Official Home Security Company of the Dallas Mavericks