Best Terrell Home Security Company

Trusted Protection for a Growing East Texas Community

Known for its small-town charm, wide-open spaces, and rapid commercial development, Terrell, TX is becoming one of the most desirable places to live east of Dallas. Whether you’re settling into a new build or upgrading a legacy property, it’s never been more important to protect your home and family.

At Allied Home Security, we specialize in providing Terrell home security systems that are affordable, easy to use, and built for real-world emergencies. With alarm monitoring starting at just $19.95/month, free equipment you own, and same-day or next-day installation, we bring peace of mind without the headache of long contracts or hidden fees.

Allied Home Security
Today Only!
Free 4 Camera DVR*
Includes App Access

Security Camera Installations in Terrell

Cameras That Do More Than Record

Security cameras should do more than passively capture footage—they should stop threats before they happen. Allied installs top-tier surveillance cameras with:

  • 4K clarity for sharp, detailed footage
  • Color night vision so you see everything—even after dark
  • Smart motion detection that filters out false alerts
  • Built-in deterrents like sirens and flashing lights

Whether you’re covering your driveway, front porch, or back acreage, we’ll design a system that eliminates blind spots and gives you control from anywhere via mobile app.

If you want Terrell home security that actually deters crime, our camera systems are the answer.

Our CamerasCompetitors
Best Price Guaranteed

Smart Home Features That Work with You

Activate, Upgrade or Build Your Alarm System

Control your entire security system from your smartphone with Allied’s intuitive app. Lock doors, check live camera feeds, adjust lighting, or arm your alarm—all with a few taps.

Whether you’re heading to work, out of town, or simply upstairs, your home stays within reach.

Our smart home features are perfect for busy families and tech-savvy homeowners who want to combine Crowley home security with convenience and automation.

Terrell Video Surveillance Systems
Free Camera & Alarm Installation

Takeovers of Existing Systems

Works with Most Brands

If you’re looking to activate an existing system, we’ve got you covered. Our team can quickly activate your system—or upgrade it if needed—so you can start monitoring without a landline. Contact us to check if your system qualifies for our $19.95/month rate. We can usually activate your system within one business day, with $0 activation fees. Plus, we’ll take care of minor repairs and provide free training on how to use your system.

Here are some of the popular brands we activate:

  • ADT
  • 2Gig
  • Brinks
  • Smith
  • DSC
  • Qolsys
  • ASG
  • Honeywell
  • Alarm.com

+ Many More!

Please give us a call to see if your system is compatible and eligible for the $19.95/mo monitoring rate.

Existing Alarm Monitoring
Already Have a System?
Activate Your Alarm for just $19.95/mo

Terrell Home Security Systems

Fast-Acting Alarm Systems with 24/7 Monitoring

Allied’s alarm systems go beyond the basics. They include motion sensors, door and window entry alerts, glass-break detectors, and optional panic buttons, all monitored 24/7 by a UL-certified Texas-based team.

When an emergency occurs, we don’t just sound the alarm—we verify and dispatch first responders within seconds. And with dual-band cellular backup, your system stays online even during storms or power outages.

Terrell home security needs to be responsive, not reactive—and with Allied, that’s exactly what you get.

Package Alerts
Smart Home App
New Customers Get
$0 Installation + $0 Activation
8 Seconds Alarm Response Times

Alarm Monitoring in Terrell

24/7 Alarm Monitoring by Texans, for Texans

Emergencies don’t wait—and neither do we. Allied provides round-the-clock monitoring through our Texas-based, UL-certified facility, staffed by trained professionals who act fast in critical moments.

Our team is here 24/7 to respond to alarms, verify threats, and dispatch help. No overseas call centers. No long hold times. Just real protection, when and where it matters most.

And at just $19.95/month, professional Terrell home security monitoring has never been more accessible.

Alarm Monitoring in Terrell, TX
Call Us for a Free Quote or to Schedule a Consultation
Business Security Systems

Terrell Business Alarm Systems

Business Security Systems That Work as Hard as You Do

As Terrell’s commercial districts continue to grow, so does the need for flexible, scalable business security. Allied offers solutions built specifically for small businesses, retail spaces, medical offices, warehouses, and more.

Features include:

  • Indoor/outdoor HD video surveillance
  • Employee access control
  • Smart entry alerts
  • Mobile and desktop control of your entire system

If you own or manage a business in Terrell, let Allied help protect what you’ve worked hard to build.

Terrell Video Surveillance Systems
Last Chance!
Free 4 Camera DVR*
Must Call to Claim!

Alarm Installation in Terrell and Surrounding Areas

Fast, Local Installation by Pros Who Care

No waiting. No hassle. Just fast, clean installs from a team that respects your time and your property. Allied offers same-day and next-day installation in Terrell, carried out by licensed, background-checked technicians—never third-party contractors.

We walk your property, recommend the right equipment, install everything with precision, and show you exactly how to use your system. If you ever need help, our Texas-based support team is just a call away.

When it comes to Terrell home security installation, Allied gets it right from day one.

Allied Home Security Installations

What Texans Like You Say About Us

Allied Home Security
Rated 4.9 / 5 based on 2189 latest online reviews

Allied Security of Terrell

About Allied Home Security

Why Terrell Homeowners Trust Allied

We’re proud to be one of the highest-rated home security companies in North Texas, serving cities like Terrell with a combination of cutting-edge equipment and real, personal service. Allied Home Security is Texas-owned and operated, and we’re committed to treating every home like it’s our own.

Our customers choose us for our A+ BBB rating, 5-star reviews, flexible pricing, and honest support—no gimmicks, just real protection.

When it comes to Terrell home security, you won’t find a better combination of value, technology, and Texas hospitality.

Dallas / Fort Worth Location: 4470 Spring Valley Rd, Farmers Branch, TX 75244  

See How Much You Can Save.

Did you know? Choosing a local alarm company can help save you up to 50% per year. 

Allied Home Security
ADT
Vivint
Monthly Cost $19.95 $44.99 $49.99
Installation Cost $0 $149.99 $199
Activation Cost $0 $99 $0
Same-Day Setup Yes No No
UL Licensed Yes Yes Yes
Price Protection Yes Varies Yes
Theft Protection Yes No No
Locally Based Yes No No
3-Year Savings $1,532

Why You Still Need Security in a Safe-Looking Town

While Terrell remains a welcoming and family-friendly city, property crimes like package theft, garage break-ins, and vandalism are on the rise—especially in fast-growing residential areas.

Criminals often target homes without visible security systems. But Allied customers send a different message: This home is protected.

A complete Terrell home security system with monitoring and cameras helps you stay one step ahead of crime—before it ever reaches your doorstep.

Dallas Sklyline
Why Choose Allied?
  • Free Equipment You Own
  • Commercial Grade Equipment
  • Free Same Day Installation
  • Free On-Site Training

  • A+ BBB Rating

  • UL-Certified Alarm Monitoring
  • Lifetime Warranty
  • Best Price Guarantee
  • $0 Activation Fees
  • Utilize Existing Equipment

  • Local Texas Company

  • Award Winning Support

Learn More About Our Security & Automation Solutions

With a monitored smart home alarm system in Texas, you’ll get industry-leading emergency response in seconds. All packages include 24/7 alarm monitoring for your home and property. Be sure to check with your insurance to save up to 20% on your premiums.

Our small business security systems are second to none We not only help protect your small business, but we also help to improve it. You can now track when visitors come and go, or even when your employees arrive and leave.

Allied offers a wide range of OSHA compliant commercial security systems. We take commercial security very seriously and understand each industry has its own set of requirements and risks. Our custom plans for security systems are tailored to fit your commercial business needs.

Activate Your System Today for just $19.95/mo*