Home Security Systems in Central Texas

Centex Systems, LLC installs professional home security systems throughout Central Texas, designed to protect your family, property, and peace of mind. From alarm systems and security cameras to smart home automation, we customize every solution to fit your home and your lifestyle.

✅ 3-Year Parts & Labor Warranty Included

✅ No Long-Term Contracts. Cancel Anytime.

✅ 24/7 Texas-Based Alarm Monitoring

✅ Licensed, Background-Checked Technicians

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Trusted Home Security System Installation Across Central Texas

When it comes to protecting your home, not all security systems are created equal. At Centex Systems, LLC, we design and install residential security systems built for real-world reliability, not just flashy features. Homeowners across Central Texas, including Temple, Killeen, Waco, Belton, and Harker Heights, trust us to deliver professionally installed alarm systems that work when it matters most. Whether you want a basic burglar alarm or a fully integrated smart home security system, our licensed technicians tailor every installation to your home's unique layout and your family's needs.


A home security system from Centex Systems goes beyond a simple alarm. Our residential installations include door and window sensors, motion detectors, glass-break sensors, and professionally hardwired security cameras, all working as a connected system. Homeowners in Salado, Georgetown, Lorena, Hewitt, and throughout Central Texas benefit from systems offering real-time mobile alerts, remote arming and disarming, and 24/7 alarm monitoring from a Texas-based center. Unlike cookie-cutter systems off the shelf, every Centex installation is designed around your home, so you get coverage where it counts.


Choosing the right home security company in Central Texas means looking beyond price. It means asking how the system communicates, who responds when your alarm goes off, and whether the installer stands behind their work. Centex Systems uses advanced cellular-based alarm communication that does not rely solely on your internet connection, so your system stays protected even if your Wi-Fi goes down or is compromised. We serve homeowners across Bell County, McLennan County, and surrounding areas, including Woodway, Jarrell, Gatesville, Hamilton, and Stephenville. From your first call to long after installation day, we are committed to protecting your home with systems built to last.

  • Strongest 3-Year Warranty in the market.

    Unlike most security companies that only offer a 1-year warranty or less, Centex Systems includes a full 3-Year Parts & Labor Warranty at no extra cost. While competitors often charge monthly fees for “extended coverage,” we stand behind every installation with real long-term protection and accountability.

  • Stop Relying on Wi-Fi for Security, Hardwired is Better.

    Many security companies rely heavily on Wi-Fi cameras and wireless devices that can suffer from weak signals, low battery levels, interference, or disconnections. Centex Systems installs professionally hardwired security cameras whenever possible to provide faster performance, stronger stability, higher resolution, and more dependable protection when it matters most.

  • Security Without the Contract Trap.

    Many security companies lock customers into lengthy contracts with expensive cancellation penalties and contract buyouts. Centex Systems offers flexible month-to-month monitoring with no long-term contract or cancellation fees required. Centex Systems keeps cancellation simple and transparent. Customers who choose a 3-year monitoring agreement will receive an installation discount.

  • Emergency Backup Power Protection

    Most camera systems stop recording the moment power is lost. That is why Centex Systems offers battery backup for camera system installation. Backup power can help keep your cameras recording during power outages or if criminals cut power to the building.

  • Criminals Look for Easy Targets, Don’t Be One.

    Many low-cost or DIY alarm systems rely on basic wireless technology and internet-only communication that can be vulnerable to interference, outages, or inexpensive hacking devices purchased on Amazon. That is why Centex Systems offers advanced, encrypted, and jam-resistant technology, such as quality sensors and cellular alarm communication, to provide more secure and reliable protection against modern security threats.

  • State Licensed Technicians. Professionally Trained.

    Centex Systems technicians are licensed through the Texas Department of Public Safety and complete 40+ hours of initial classroom instruction, hands-on field training, and background checks before working independently. Because a security system is only as good as the people installing it.

  • We Don’t Just Install It. We Show You How to Use It.

    A security system only helps if you know how to use it. After installation, Centex technicians walk customers through their system step-by-step, including arming, disarming, mobile app features, alerts, and basic troubleshooting. On average, our technicians spend about 45 minutes after each installation training customers and answering questions. We do not leave until you are comfortable using your system.

  • We Treat Your Property Like Our Own, No Shortcuts.

    We treat your home or business with respect throughout the installation process and clean up thoroughly before leaving the job site. Every installation also goes through a 180-point technician checklist to help ensure the system is installed properly, tested, and functioning correctly before completion.

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Home Security Is Just the Beginning, We Offer Full-Service Protection for Your Home


Our home security systems are a powerful foundation, but Centex Systems offers much more than alarm monitoring. We also install professionally hardwired security camera systems, smart home automation, access control, and comprehensive network and data solutions. Whether you want to add cameras to watch your driveway, automate your lighting and locks, or set up a reliable home Wi-Fi network, our team handles it all in one installation. When you work with Centex Systems, you get a single trusted partner for your entire home's safety and connectivity, not a patchwork of different vendors and warranties.

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How Getting a Home Security System with Centex Systems Works

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Free consultation & custom quote

We start with a no-pressure conversation to understand your home, your concerns, and your goals. A Centex Systems specialist will assess your property and design a customized security solution, recommending the right equipment, coverage points, and monitoring plan for your specific situation. No pushy sales tactics. No one-size-fits-all packages.

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Professional installation by licensed technicians

Your installation day is handled entirely by licensed, background-checked Centex technicians who treat your home with care. We follow a strict 180-point checklist on every job to make sure every sensor, camera, and communication pathway is installed correctly, tested thoroughly, and functioning at full capacity before we wrap up.

Personalized training & ongoing support

Before we leave, your technician spends about 45 minutes walking you through everything, how to arm and disarm your system, use the mobile app, review camera footage, set up alerts, and troubleshoot common questions. We don't consider the job done until you feel fully confident. And if questions come up later, we're just a phone call away.

Frequently Asked Questions

  • What does a home security system from Centex Systems include?

    A standard home security system installation from Centex Systems includes a control panel, door and window sensors, motion detectors, a keypad, a siren, and cellular monitoring communication. Depending on your home's size and needs, we may also include glass break sensors, security cameras, smart locks, or additional sensors. Every system is customized; we don't do one-size-fits-all.

  • Do I need Wi-Fi for my home security system to work?

    No. Centex Systems installs alarm systems that use cellular communication as the primary signal path, so your system doesn't rely solely on your home's internet or Wi-Fi. This is an important distinction. Many cheaper systems only communicate over Wi-Fi, so a simple router reset or internet outage could leave your home unmonitored.

  • Is a long-term contract required for monitoring?

    No. Centex Systems offers flexible month-to-month monitoring with no long-term contract or cancellation fees. Customers who choose a 3-year monitoring agreement receive a $300 installation discount and can cancel anytime by repaying that $300 discount; no penalties or contract buyouts.

  • How long does a home security system installation take?

    Most residential installations are completed in one day. After installation, your Centex technician will spend about 45 minutes walking you through your system, including how to arm and disarm it, use the mobile app, check camera footage, and handle basic troubleshooting. We don't leave until you're fully comfortable.

  • What areas of Central Texas do you serve for home security installation?

    Centex Systems installs home security systems throughout Central Texas, including Temple, Waco, Killeen, Belton, Harker Heights, Salado, Georgetown, Jarrell, Lorena, Hewitt, Woodway, Gatesville, Hamilton, and Stephenville. Not sure if we cover your area? Give us a call; we're happy to help.

24/7 Alarm Monitoring for Your Home Across Central Texas


Monitoring Starting at Only at $39.99

When your home alarm goes off at 2 a.m., the last thing you want is to reach an overseas call center unfamiliar with your neighborhood. Centex Systems partners with a UL-listed, Texas-based monitoring center staffed by real people, not automated responses, who understand the urgency of a real emergency. Our local monitoring team responds faster, communicates clearly, and coordinates directly with Central Texas law enforcement and emergency services. Whether you're in Harker Heights, Salado, Georgetown, or anywhere in our service area, real Texans watch over your home around the clock.

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