Compare top-rated security system installation providers in St. Louis. Profiles include verified reviews, service details, and direct contact options.
Open 8:00 AM – 5:00 PM
We've been in business for over 6 years now and take pride in our great customer service. We have remained the top local alarm company in St.…
Open 8:00 AM – 5:00 PM
We are the go-to provider of business security, actionable insights, and purpose-built networks for the nation’s top multi-location brands. Our mi…
These companies are based in nearby cities and serve St. Louis.
Open 24/7
Lasbury Security and Fire provides comprehensive security, life safety, and technology solutions for both commercial and residential clients. We s…
Open 9:00 AM – 5:00 PM
When you leave on vacation or even just for a few nights, don't just hope that nothing happens in your absence. Ensure your home and property…
Open 24/7
Our business was started by the late Ralph Bice whom was a retired Rockwoods police officer. The company today is ran by his son Harold Bice Presi…
Open 6:00 AM – 11:00 PM
Vivint brings peace of mind with reliable smart home security, effortless home management, and 24/7 support from real people. We keep you connecte…
Open 8:00 AM – 5:00 PM
Paul T. Erker started in the alarm business in 1982 while in college. In 1994, Paul established Erker Security Systems, Inc. Since then, Erker Sec…
Open 24/7
Open 24/7
Free estimates and consultations, Network room cleanup, Security Camera installation and sales, Home automation, Wi-Fi troubleshooting, Wireless s…
Open 24/7
Computer And Technology Services has been serving homes and businesses in Glen Carbon, IL, and the St. Louis area with fast, reliable, and profess…
From $50
Up to $500
Open 8:00 AM – 7:00 PM
In East Alton, we are Advanced Wiring Solutions – a team of dedicated professionals specializing in Security System Installation Services. We take…
Open 8:00 AM – 5:00 PM
Looking for the best home security systems in the St. Louis area? Look no further than Freedom Security LLC! Based in Sainte Genevieve, MO, we are…
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We show only active businesses that pass moderation. Results are specific to St. Louis and nearby service areas, and inactive profiles are removed to keep the list current.
Ratings and reviews come from customers who used the service. Compare security system installation pros in St. Louis by experience, responsiveness, and value before you reach out.
Filter by neighborhood, check locations on the map, and find providers close to home or work in St. Louis. Listings are refreshed regularly — October 2026.
The same listings in the closest cities — providers there often take jobs in St. Louis too. Mileage is the approximate distance from St. Louis.
Looking for security system installation in St. Louis? This page lists verified local providers with ratings, reviews, and contact options. We show active businesses only — profiles are moderated and updated by owners.
Compare pros by experience, price range, and customer feedback. Many providers offer free estimates or same-day service for common requests. Use filters and the map to find someone close to your address.
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The only company that responded to our request for bids. The entire process was simple with work beginning as scheduled and finished as scheduled. It was quality workmanship by very polite workers that completed the job as promised. We are very happy with the results and the performance of the equipment. I strongly recommend Citywide for anyone planning a security system.
This is one of the worst service businesses I've ever dealt with unprofessional they do not stand behind their work. They are not properly licensed to do high voltage security camera installed Buyer. Beware once I found out their install was not done properly. They want to charge 35 to 55% additional to the original price quoted to come out and fix it and not even fix it properly to what was discussed -unprofessional unethical and will never use again.
Haven't been able to use my system for months because they can't get it fixed, and customer service is appallingly bad. They put you on endless hold and then transfer you to people who relentlessly read from the script, thank you for providing information, feel your pain, yet are unable to do anything to solve a problem. Can't wait until my service contract is up so I can fire them.
sensors brake NR not repaired, communication poor, low availability, I'm sorry to say a textbook example of poor customer service
Great install and quick. The technician was veriy polite and professional. Help with the phone APP and made other suggestion with out the pushy approach that most carriers do. Switch over ADT which was a nightmare and costly.
placed a system on test for inspections, and they said that they would and an hour later fire department showed up.This is the worst company, even the monitoring lady on the phone was rude after I called back and hung up on me, do NOT use them
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