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Alarm.com

Alarm.com Camera Systems & Smart Homes in St. Louis

Take control of your St. Louis home’s security and comfort with Alarm.com. Manage security cameras, lighting, thermostats, and more, all from a single app.



Your Complete Security Ecosystem

When something happens at home, a quick response makes all the difference. Many off-the-shelf smart devices require separate apps and remotes, leaving you juggling controls when time matters most.

Alarm.com brings everything together into one simple, reliable platform: security, cameras, and home automation. Whether you’re at home or away, you have direct control and peace of mind with just a tap.

A brick house with an open garage, accompanied by an Alarm.com notification offering a quick option to close the garage remotely for convenience and security.
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Reliable Protection, 24/7

Alarm.com burglar alarm panels keep your St. Louis home secure, even during a power outage. Thanks to its built-in cellular connection, your alarms stay online even if the internet, Wi-Fi, or phone lines go down.

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Professionally Monitored

If an alarm goes off (whether it’s a break-in or a fire), your system sends a signal straight to the monitoring center. Trained professionals respond right away, no matter the time of day.

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Fire & Carbon Monoxide

Integrated detectors watch for smoke and dangerous gases, alerting you instantly, wherever you are. It’s another layer of safety for your family and your property.

Stress Less, More Control

Life moves fast. Alarm.com takes home security off your to-do list by handling schedules and remote access for you. With one tap, you can lock the doors, turn off the lights, arm the alarm, and power down electronics.


Alarm.com’s app interface showcasing customizable scenes such as sleep mode, with quick options to lock doors and adjust home settings.

Make Home Control Part of Your Routine

Manage every room with a simple tap. Set up custom scenes like “Morning” or “Night” to adjust lights, temperature, shades, and security settings automatically. When you leave, your home handles the shutdown with no extra steps needed.

A delivery person captured on Alarm.com’s smart video doorbell interface, providing live monitoring and secure interaction options.

Stay in Control, Even When You’re Away

Expecting a delivery or visitor? Remotely unlock doors or gates, use two-way audio to communicate, and lock up again, all from your phone.

Alarm.com’s home security app interface with highlighted features, including open door notifications and reminders to arm the system remotely.

Real-Time Adjustments from Anywhere

If you forget to adjust the thermostat or re-arm your security system, just open the Alarm.com app. Make changes instantly, wherever you are.

A security control panel reading “System Armed” with a shadowy figure in the background, showcasing Alarm.com’s effective security measures.

Protection That Goes the Extra Mile

Alarm.com camera systems are built to withstand ‘crash and smash’ break-in attempts. If someone tries to disable the system before it sends an alert, the monitoring team is notified right away.


Intelligent Monitoring with Contextual Awareness

Alarm.com surveillance cameras do more than record; they actively monitor what’s happening around your St. Louis property. With built-in AI analytics, the system can tell the difference between people, cars, animals, and other objects. Use the Smart View timeline to jump straight to important events and filter footage for what matters. It’s a smarter way to keep watch, giving you real security, not just another camera feed.

Minimize False Alarms

Too many alerts from your security cameras can quickly become background noise—and that’s when real risks get missed. Alarm.com’s smart video alerts help filter out the unimportant notifications, so you only get alerted to what really matters. That way, you stay informed without the distractions.

Alarm.com’s app displaying real-time video footage and AI-based motion detection, highlighting advanced monitoring for home security.

Customize Your Setup

Pick the camera type that fits your needs (Wi-Fi or Power over Ethernet) for both indoor and outdoor coverage. Alarm.com works with a wide range of third-party brands, so you get the features and flexibility you want, all in one system.

A complete suite of Alarm.com’s security cameras, including floodlight and indoor cameras, for comprehensive home monitoring solutions.
A pet caught on camera surrounded by torn items, with Alarm.com’s video analytics identifying and categorizing the activity.

See Every Corner of Your Property

Monitor both indoor and outdoor spaces in one place. Check on pets, deliveries, or the driveway, all through Alarm.com’s connected system.

A delivery person captured on Alarm.com’s smart video doorbell interface, providing live monitoring and secure interaction options.

Remote Access to Doors

Need to let someone in? Lock or unlock doors from anywhere with the Alarm.com app, whether you’re upstairs or halfway across the country.

A person captured on Alarm.com’s indoor camera, showing activity detection with a friendly notification about taking care of a pet.

Two-Way Communication Made Simple

Speak with visitors, the kids, or your dog walker using built-in intercom features on your cameras and door stations.

A stylish dining area captured by Alarm.com’s indoor security camera with a timeline interface for reviewing recorded footage.

Find What You Need, Fast

Use Smart View to jump right to the footage you’re after, whether it’s for insurance claims or saving memorable moments at home.

A father and son walking outdoors while the father checks the Alarm.com app, displaying real-time updates of home security, video highlights, and lighting control.

Stay Informed with At-a-Glance Status

Get a quick, clear snapshot of every room and device. See what’s happening with a quick look on the Alarm.com security system dashboard.


A modern, well-lit luxury home at dusk showcasing Alarm.com’s automated lighting and security systems for enhanced safety.
Two smartphones displaying the Alarm.com app’s home automation interface, including thermostat control, security system status, and live camera feeds for a connected home.

Complete Home Management by Alarm.com

Alarm.com doesn’t stop with security. Control your lighting, motorized shades, climate, audio, video, and even solar panel energy, all from one place. Our customers rely on Alarm.com for simple, hands-on management of every system in their home.

Smart Door and Garage Control

Protect your home’s entry points with smart locks and garage door controls from Alarm.com. Lock and unlock doors remotely, give guests one-time access, and check if the garage door is closed, all from your phone.

Ditch the Keys

Grant access instantly: Let visitors in and disarm your system with one simple command.

Stay informed: Get alerts when family members arrive, when someone’s late, or if you forget to lock up.

Ditch the keys: Use digital lock codes with time and date restrictions for added security.

No More Guesswork

Receive notifications if your garage door is left open, and close it remotely from the Alarm.com app.

Leave Home Faster

Schedule your doors, garage, and security system to lock and arm automatically when you leave, simplifying your morning routine.

Stay Connected

See and speak to visitors through video doorbells and intercoms wherever you are.

Alarm.com’s mobile app interface showing garage door and lock controls, complete with real-time status updates and notifications for smart home security.

Climate Control

From summer to winter, Alarm.com helps you enjoy the perfect temperature at home. Adjust settings remotely, automate HVAC schedules, and get alerts for abrupt temperature changes.

Keep your St. Louis home comfortable in every season with an Alarm.com system installation. Adjust the thermostat from your phone, automate heating and cooling schedules, and get alerts if temperatures suddenly change.

Easy Automation

Control from Anywhere: Change temperatures anytime via the Alarm.com app or with voice commands.

Follow Your Routine: Thermostats adjust automatically when you arm the system or arrive home.

Live Efficiently: Effortlessly save energy with intelligent, preference-based adjustments.

Ready for Your Return

Whether it’s January or June, schedule your HVAC system to kick on an hour or so before you return home from work. Your house is always the right temperature by the time you arrive!

Whole-Home Comfort

Thermostats only measure the temperature in the rooms they’re in. Alarm.com offers convenient temperature sensors that can be integrated into other areas.

Energy Savings

Heating and cooling are the biggest culprits of energy waste. Alarm.com’s ENERGY STAR thermostat helps homeowners save 23% of energy in winter and 16% in summer.

A close-up of an Alarm.com smart thermostat with a sleek display showing the current temperature and greeting “Good Morning.”

Leak and Flood Protection

Water damage happens fast. Alarm.com detects leaks early, so you can act before a drip becomes a flood.

Catch Leaks Early

We install Alarm.com water sensors in vulnerable areas, like the laundry room, bathroom, and under sinks. When excess water is detected, you’ll be notified immediately and can remotely turn off the main water valve with a tap of a button.

Avoid Expensive Repairs

With a Smart Water Valve+Meter, you’ll be notified of costly water issues like running toilets or upticks in water consumption. Are your household’s showers too long? Alarm.com makes it easy to monitor and make smarter choices.

Stop Leaks Instantly

Alarm.com’s water valve monitors will instantly alert you once a leak is detected. You’ll instantly shut off the water from the Alarm.com app. Away from home? The Smart Water Valve+Meter will shut it off for you.

Protect Against Winter Freezing

When pipes freeze, flooding is quick to follow. Alarm.com’s smart valves include temperature monitoring, letting you know if the basement or other areas need extra heat to prevent freezing.

A water heater with an Alarm.com leak detection sensor, providing early warning alerts for water damage prevention.

Intelligent Lighting & Shading

Control lights in groups or across multiple rooms, and set the perfect mood in seconds.

One App for Every Light

One-Touch Control: Adjust a single light or the whole house through the Alarm.com app or a simple voice command.

Simplify Daily Routines: Set lights to turn on or off automatically when you arrive home, arm your system, or go to bed.

Bolster Home Security: Automate lights to deter intruders, respond to detected activity, and create the illusion that someone’s home.

Say Goodnight with One Tap

At the end of the night, activate your custom ‘Sleep’ scene. Instantly, lights shut off, doors lock, thermostats lower, and shades close, simplifying your nighttime routine.

Return Home Safely

You don’t have to stumble up to a pitch-black house when returning late at night. Alarm.com instantly turns on indoor and outdoor lights as your car approaches.

Who Goes There?

Alarm.com’s video analytics can differentiate people from critters and will not turn on the lights when a squirrel runs by.

A scenic outdoor view of a home featuring Alarm.com’s automated security and lighting controls for safety and convenience.

Fire & Carbon Monoxide Detection

Smarter detectors create safer homes. Get professional monitoring and real-time alerts to stay ahead of dangerous fire and gas leaks.

Stay protected with smart detectors that alert you and professionals at the first sign of smoke or carbon monoxide.

Instant Alerts

Professional Monitoring: Your monitoring service contacts 911 on your behalf, ensuring help arrives even if you can’t call.

Stay Informed: The Alarm.com app pinpoints danger zones, helping you adjust your escape plan in real time.

False Alarm Prevention: Accidentally triggered the alarm? Use Smart Signal to cancel it instantly and avoid unnecessary disruptions.

Contain Fumes from Spreading

Stop the spread of toxic fumes during emergencies. Alarm.com automatically pauses your heating or AC when a fire or carbon monoxide alarm is triggered, keeping your home safer.

Camera Integration

Uncertain fire causes can delay insurance claims. Alarm.com cameras automatically record and store footage during emergencies, providing clear evidence for investigators to resolve issues faster.

A man installing a smoke detector, featuring Alarm.com’s intuitive alert system with options to cancel or verify alarms within a countdown timer.

Access Control Made Easy

Keep track of who enters and exits your property, whether it’s a single building or multiple locations. You can review activity logs, adjust permissions, and monitor Alarm.com camera systems, all from one straightforward platform.

Alarm.com’s business management app interface, providing access control, security system status, and video feeds for efficient property monitoring.
A mobile device displaying the Alarm.com app’s live video monitoring feature, highlighting security camera feeds for a business.
The Alarm.com app showcasing door locks, system status, and access management for a business, including features like “Buzz Open.”
Alarm.com’s business management app interface, providing access control, security system status, and video feeds for efficient property monitoring.
A mobile device displaying the Alarm.com app’s live video monitoring feature, highlighting security camera feeds for a business.
The Alarm.com app showcasing door locks, system status, and access management for a business, including features like “Buzz Open.”

Stay Connected from Any Device

Manage doors, users, and readers from any device: your computer, tablet, or phone. Alarm.com makes property management flexible and secure.

A professional using Alarm.com’s smart access control system to unlock a secure business entrance with a mobile credential for seamless entry.

Mobile Access

Skip the hassle of keys and badges. Staff can unlock doors with their phones, but cards and fobs are still an option if needed.

A sleek building with a graphical overlay of Alarm.com’s access scheduling interface, showcasing security management for employees and customizable access control.

One Dashboard for Everything

Add or remove users in seconds, handle bulk updates, and schedule automatic access—all from a single app or website dashboard.

A hand holding a smartphone displaying Alarm.com’s business lock control interface, featuring options to unlock, lock, or buzz open secure doors remotely.

Remotely Control Locks

Lock or unlock doors from anywhere. Instantly adjust permissions to keep your property secure and accessible.

A person swiping an access card to unlock a secure door, with Alarm.com’s real-time notification system highlighting access details for enhanced security monitoring.

Custom Rules & Alerts

Automate schedules, minimize false alarms, and set up smart triggers for extra security. For instance, create an automation that arms the system when the last person leaves.

A delivery person interacting with a smart doorbell, integrated with Alarm.com’s live video monitoring system, ensuring secure and efficient package delivery.

Integrate with Alarm.com Surveillance Cameras

Quickly match access events to video clips, answer doorbell calls, and unlock doors remotely, all from one dashboard.

    Create A Smarter, Safer Home with Westco

    As your local Alarm.com dealer in St. Louis, we handle every step, from design to Alarm.com system installation. Ready to get started or learn more? Reach out today for a free, no-pressure consultation.

    A red “WESTCO” wordmark with a stack of vertical bars to the left, and the white text “Security & Technology Systems” below, set against a dark or transparent background.

    (636) 519-0022
    215 Chesterfield Industrial Blvd.
    Chesterfield, MO, 63005

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