TOP RATED SECURITY SYSTEMS

Secure Your St. Louis Home or Business

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Don’t leave safety to chance! St. Louis Alarm Company, a Veteran-Owned leader in home and business security, delivers cutting-edge security system installation and 24/7 monitoring tailored for St. Louis and St. Charles homeowners, renters, and businesses. From advanced police, fire, and medical alarm monitoring to state-of-the-art smart home automation and commercial security solutions, we protect what matters most. Ranked among St. Louis’ top security companies, our customized systems ensure your property stays safe, secure, and connected. Get a FREE consultation today and discover why we’re trusted to safeguard the St. Louis community!

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security & surveillance
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Home Security Systems

Experience ultimate protection with our premium security system, featuring cutting-edge cameras, advanced home automation, and life safety devices.

Discover reliable, high-quality security solutions that fit your budget.

Enhance your peace of mind with advanced security cameras.

Stay connected with real-time alerts and monitor what matters most, no matter where you are.

Complete your home security setup with a video doorbell, indoor camera, or outdoor camera to keep your property secure and your family safe.

St Louis Alarm Co Mobile App

Control your security system from home or on-the-go.

Easy to use.

Professional Monitoring

Protect your home and business around the clock with our 24/7 monitored security alarm system.

Backed by a UL-Certified emergency response center, you’ll enjoy the highest level of protection and peace of mind.

  • Fire and Carbon Monoxide Monitoring

  • 24/7 Security Monitoring

  • Controllable from anywhere

Residential and Commercial Security Alarm Services

Expert Home Security & Commercial Alarm Systems in St. Louis

Secure your St. Louis home or business with expert security solutions from St. Louis Alarm Co, the premier Veteran-Owned provider of residential and commercial alarm systems in St. Louis and St. Charles. With a property crime rate of 59.07 per 1,000 residents in St. Louis County in 2025 and a 13% rise in commercial break-ins in St. Charles, our customized security systems, backed by 24/7 professional monitoring, ensure your property, employees, and assets are protected around the clock. Get a FREE consultation today at stlalarmco.com and discover why we’re St. Louis’s trusted choice for advanced security!

Why Choose St. Louis Alarm Co for Your Security Needs?

  • Local Expertise: As a St. Louis-based, Veteran-Owned company with over 25 years of experience, we understand local crime trends, including rising employee car thefts and business break-ins in St. Charles, Lincoln, and Warren Counties.

  • Advanced Technology: Our systems feature AI-powered cameras, smart home integration, and the Alarm.com app for seamless control, delivering unmatched protection against St. Louis’s $954 million in annual crime costs.

  • Customized Solutions: Tailored for homes, apartments, and businesses, our installations scale to meet your needs, from small retail shops to large warehouses.

  • Transparent Pricing: Enjoy no-contract options for renters, free consultations, and no hidden fees, ensuring affordable security for all.

Residential Security Alarm Systems: Transform Your St. Louis Home

Protect your home with our state-of-the-art residential security systems, designed to keep your family safe and your property secure. Serving St. Louis and St. Charles, our systems combat the region’s high property crime rate (58.3 per 1,000 residents in St. Louis City). Key features include:

  • Advanced Burglar Alarm Sensors: Door/window sensors, motion detectors, and glass break sensors detect intrusions instantly, with 24/7 monitoring via 4G LTE for reliability during outages.

  • Smart Home Security Integration: Control lights, locks, and thermostats remotely with the Alarm.com app, deterring burglars by simulating occupancy—a critical feature in areas with high break-in rates.

  • Mobile Security System Control: Arm/disarm your system and receive instant alerts on your smartphone, ensuring peace of mind whether you’re at work or on vacation.

  • Local Emergency Response Dispatch: Rapid response to alarms ensures St. Louis authorities are notified quickly, reducing risk in neighborhoods with elevated crime.

  • Professional Installation by St. Louis Technicians: Our local experts customize installations to your home’s layout, ensuring optimal coverage and long-term reliability.

Why It Matters: With St. Louis City’s violent crime rate at 20.1 per 1,000 residents, our systems provide the protection you need to sleep soundly.

Commercial Security & Business Alarm Systems: Safeguard Your St. Louis Business

Protect your business from break-ins and employee car thefts with our enterprise-grade commercial security systems, tailored for St. Charles, Lincoln, and Warren Counties. Our solutions address the 13% increase in felony cases reported in St. Charles in 2023, including smash-and-grab vehicle thefts. Key features include:

  • Commercial-Grade Security Sensors: Motion detectors and glass break sensors secure multiple entry points, protecting inventory and assets in St. Peters or Troy businesses.

  • Professional Business Alarm Monitoring: 24/7 monitoring with instant alerts ensures rapid response to threats, minimizing losses in St. Louis County’s high-crime areas.

  • Video Surveillance System Integration: AI-powered HD cameras monitor employee parking lots and interiors, deterring thefts like those affecting over 100 vehicles at a St. Charles Amazon warehouse in 2022.

  • Access Control Systems: Keycard or biometric entry restricts access to sensitive areas, enhancing employee safety and protecting high-value assets.

  • Remote Business Security Management: Manage multiple locations via the Alarm.com app, ideal for franchises or multi-site businesses in Lincoln County.

  • Local Commercial Security Support: Our St. Louis-based team provides ongoing maintenance and 24/7 support, ensuring your system stays reliable.

  • Employee Safety Features: Panic buttons and parking lot cameras protect your workforce, addressing rising employee car thefts in St. Charles.

Why It Matters: With St. Louis County businesses facing $954 million in annual crime costs, our systems ensure operational continuity and employee safety.

Professional Security Camera Systems: Enhance Your Protection

Boost your security with our professional HD security camera systems, designed for both homes and businesses in St. Louis and St. Charles:

  • Indoor and Outdoor Surveillance Cameras: High-definition cameras with night vision capture clear footage, day or night, protecting against intrusions and theft.

  • Remote Camera Monitoring via Mobile App: Access live feeds or review recordings on the Alarm.com app, ensuring real-time oversight from anywhere.

  • Night Vision Security Cameras: Monitor dark areas like parking lots or back entrances, critical for St. Charles businesses with late-night operations.

  • Commercial Security Camera Systems: Scalable solutions for retail, warehouses, and offices, with AI analytics to detect suspicious activity.

  • Professional Camera Installation: Our St. Louis technicians ensure optimal camera placement for maximum coverage and deterrence.

Why It Matters: Visible cameras deter criminals, reducing the risk of break-ins and employee car thefts, which remain prevalent in the region.

Do you have questions?

Contact us to find the best solutions for your security needs.

Why Choose St. Louis Alarm Company?

  • Veteran-Owned Expertise: Certified by the U.S. Small Business Administration, we bring 25+ years of information technology experience to every project.
  • Customized Solutions: Tailored residential and commercial security systems for homes, apartments, and businesses in St. Louis and St. Charles.
  • Advanced Technology: Cutting-edge alarms, cameras, and smart home automation protect against rising threats like copper theft.
  • Local Commitment: As a St. Louis-based company, we understand the unique security challenges of our community.
  • No-Contract Options: Flexible plans with free installation for renters, making security accessible to all.
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DIY Smart Alarm System & Cameras For Renters

For those living in an apartment or renting a home, we offer flexible, no-contract home security system options designed to fit your lifestyle. Our renter security packages include free installation and free activation for qualified customers, making it easier than ever to protect your space.

Even better, our no-contract alarm monitoring operates on reliable 4G LTE wireless technology, ensuring your home stays protected even if the internet goes out. And when it’s time to move, simply take your alarm system with you and continue enjoying top-tier protection in your new home, backed by our UL-certified monitoring services.

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Smart Home

HOW IT WORKS

Revolutionize Your Safety with St. Louis Alarm Co.’s Smart Home Security Systems

Protect your St. Louis home or business with cutting-edge smart security solutions from St. Louis Alarm Co. Our advanced alarm systems and smart home automation put you in control, delivering unmatched peace of mind—whether you’re at work, school, or on vacation. As a top-rated, Veteran-Owned security provider in St. Louis and St. Charles, we offer tailored systems to deter intruders, prevent copper theft, and keep your property secure. Click now for a FREE consultation and start safeguarding what matters most today!

  • Total Control with the Alarm.com App: Monitor live HD camera feeds, arm/disarm your system, and manage lights, locks, and thermostats from your smartphone—anytime, anywhere. Get instant alerts for triggered alarms, ensuring rapid response to threats in St. Louis, where property crimes hit 58.3 per 1,000 residents in 2025.

  • Voice-Activated Convenience: Seamlessly integrate with Amazon Alexa or Google Home for hands-free control. Use simple voice commands to lock doors, adjust lighting, or arm your system, making security effortless for busy St. Charles homeowners and businesses.

  • Smart Deterrence for Maximum Safety: Internet-connected systems provide real-time notifications and remote access, deterring burglars and protecting against rising threats like copper theft, which cost St. Louis $1.2 million in 2023. Visible cameras and smart lighting mimic occupancy, reducing break-in risks.

  • All-in-One Automation Hub: The Alarm.com app centralizes control, letting you check on pets, answer the door, or adjust your thermostat with a tap. Perfect for St. Louis renters and businesses with no-contract options and free installation for qualified customers.

  • Trusted Local Expertise: As a Veteran-Owned, St. Louis-based company with over 25 years of technology experience, we understand local crime trends and deliver customized solutions to keep you safe.

Don’t wait for a break-in to act! Join satisfied St. Louis and St. Charles customers who trust St. Louis Alarm Co. for top-tier security. Schedule your FREE consultation now at stlalarmco.com or call our St. Louis office to secure your home or business with smart technology today!

Providing
IT Services Since

2009

  • Control devices from anywhere
  • Keyless door locks
  • Smart thermostat
  • Garage door control
  • Live video footage
  • Recorded clips
  • Video doorbell cameras
  • Indoor & outdoor cameras
  • Remote Triggering
  • Window Alarms
  • Door Alarms
  • Instant Home Surveillance
  • Wired and Wireless Systems
  • Smoke & CO detectors
  • Glass break & motion sensors
  • Flood/water protection sensors
stl smart lights
Smart Lighting
stl smart garage
Smart Garage Doors
stl smart thermostat
Smart Thermostats
stl smart locks
Smart Locks

Secure Your St. Louis Business with Advanced Commercial Security Solutions from St. Louis Alarm Co

Protect your St. Louis or St. Charles business with enterprise-grade security systems from St. Louis Alarm Co, the region’s trusted, Veteran-Owned provider. Our advanced business surveillance, access control, and 24/7 professional monitoring safeguard your assets, inventory, and employees from rising commercial break-ins and thefts, ensuring employee safety and business continuity. With St. Louis County reporting a property crime rate of 59.07 per 1,000 residents in 2025, schedule a FREE consultation today to discover why local businesses rely on us for top-tier security solutions!

Why Choose St. Louis Alarm Co for Commercial Security?

  • Customized Protection for St. Louis Businesses: Our security systems are tailored to secure retail stores, offices, warehouses, and construction sites in St. Charles, Lincoln, and Warren Counties, where commercial break-ins increased 13% in 2023.

  • Employee Safety First: Protect your workforce with systems designed to enhance safety, including panic buttons, parking lot surveillance, and real-time alerts to prevent workplace incidents and employee car thefts, a growing issue in St. Charles since 2022.

  • Cutting-Edge Technology: Featuring AI-powered HD cameras, commercial-grade sensors, and the Alarm.com app, our systems deliver real-time monitoring and instant notifications to keep your business secure.

  • Local Expertise: As a St. Louis-based, Veteran-Owned company with over 25 years of experience, we understand local crime trends and design solutions that scale with your business.

  • Transparent Pricing: Enjoy affordable, enterprise-grade security with no hidden fees and free consultations for businesses of all sizes.

Key Features of Our Commercial Security Solutions

  1. AI-Powered Surveillance Cameras: High-definition cameras with intelligent analytics detect suspicious activity, such as unauthorized access or loitering in employee parking lots, perfect for St. Charles retail corridors or Lincoln County warehouses. Access live feeds via the Alarm.com app from anywhere.

  2. 24/7 Professional Monitoring: Our 4G LTE-connected systems ensure uninterrupted monitoring, with instant alerts and emergency dispatch to protect against break-ins and ensure employee safety in St. Charles, where felony cases rose 13% in 2023.

  3. Advanced Access Control Systems: Restrict entry to sensitive areas with keycard or biometric systems, protecting inventory and ensuring only authorized personnel access high-risk zones, critical for Warren County’s industrial sites.

  4. Employee Safety Features: Panic buttons and dedicated parking lot cameras with license plate recognition protect employees from car thefts and workplace threats, addressing the spike in vehicle break-ins in St. Charles since 2022.

  5. Motion Detection and Alarms: Commercial-grade sensors and glass break detectors provide comprehensive coverage, ensuring rapid response to break-ins in Troy or St. Peters businesses.

  6. Smart Business Automation: Control lighting, locks, and HVAC remotely to deter thieves and create a safer environment for employees. Schedule lights to simulate activity, reducing the $954 million in annual crime costs in St. Louis County.

  7. Multi-Location Management: Manage multiple St. Louis-area locations from a single Alarm.com dashboard, ideal for franchises or businesses with multiple sites.

  8. Backup Power Supply: Keep systems online for up to 24 hours during outages, ensuring continuous protection for rural Warren County businesses prone to power disruptions.

Addressing Business Theft and Employee Safety

Commercial break-ins and employee car thefts pose significant risks in St. Charles, Lincoln, and Warren Counties. In 2022, St. Charles reported smash-and-grab incidents affecting over 100 vehicles at an Amazon warehouse, highlighting the vulnerability of employee parking lots. St. Louis Alarm Co’s systems combat these threats with:

  • Parking Lot Security: High-definition cameras and motion-activated floodlights deter vehicle thefts, ensuring employees feel safe arriving and leaving work.

  • Panic Buttons: Discreet panic buttons allow employees to alert authorities instantly in case of workplace threats, enhancing safety in high-traffic retail or industrial settings.

  • Real-Time Alerts: Instant notifications for triggered alarms or suspicious activity enable rapid response, protecting inventory and reducing the financial impact of thefts, which cost St. Louis County businesses $954 million annually.

Why St. Louis Businesses Trust Us

With property crimes and employee car thefts disrupting operations and eroding workplace trust, our commercial security solutions provide peace of mind. Unlike basic systems, our installations are engineered for high-stakes environments, protecting against sophisticated break-ins and ensuring employee safety. Certified by the U.S. Small Business Administration, our Veteran-Owned team delivers reliable, professional service tailored to St. Louis, St. Charles, Lincoln, and Warren Counties.

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