Welcome to
ACF Alarm Company

High-quality Alarms & Security Services.
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professional quality equipment

Simple to use with friendly customer support.

A team of
seasoned experts

We employ the best people in the industry.

System Installation & Repair Services

We offer professional Installation & repair solutions.

Setup & Install

Need a professional Security system installed in your home or business? We are here to help!

Quality Service

Our experts can diagnose and fix alarm-related issue, quickly and easily.

24/7 Monitoring

We will integrate your system with full time monitoring to protect you day and night.

Our Mission

Since its inception in 1969, ACF Alarm has focused on honesty and fair treatment of all employees and customers. We are committed to developing new security products and services to protect both residential and commercial property within the community.

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ACF Alarm strives to be recognized as the most progressive alarm company in the area. As a team, we will accomplish this by developing influential leaders that empower their peers in order to attain mutual success.

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Get A Quote

ACF Alarm Co
9021 Riverview Dr # 200
St. Louis, MO 63137

OFFICE: 314-869-8500
E-mail : Sales@acfalarm.net
Office Hours: 8:00 AM – 4:00 PM Monday – Friday
24/7 UL Central Station: 314-867-1600 (alarm response only)

Contact Us

What we offer

See How We can help
Protect Your Home or Business

We have many options available and can work with you to create a plan based on your needs and budget. Let us help with protecting your home or business.

All alarm signals are received at our monitoring station; located in St. Louis near downtown. Our facility is U.L. Certified and is open 24 hours a day/365 days a year.


providing an unmatched level of quality and service

Efficient security solutions for individual and corporate clients


professional services & reasonable prices

Compare our affordable pricing policy, which allows us to tailor the services needed to match our clients budgets.

Feel free to review our pricing plans before purchasing.

We are offering discounts to "Front-Line" workers. To learn more call: 314-869-8500

Our clients


Monthly Installs


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monthly repairs

Our team

professional alarm systems

Since our establishment, we have gathered a team of dedicated security professionals.


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A happy man using security alarm
How to clear a trouble signal

At the keypad, enter [*] [2] The yellow “Trouble” Light will flash, and a number 1 through 8 will appear on the keypad.
Light 1 - Press key 1 for more details, if number 1 light stays on the main battery backup needs replacing. If number 2 thru 8 comes on call for service.
Light 2 - Power Off to alarm panel, (power off, breaker off, transformer bad or unplugged).
Light 3 - Telephone Line Trouble, no phone line working on the alarm system phone jack.
Light 4 - Failure to Communicate, on the last alarm the system could not make a call to the monitoring station, (this will only clear off after a successful alarm communication to the monitoring station).
Light 5 - Zone Fault, press key 5 for more details, the zone light with fault will come on. A wireless device has not checked in, smoke det. missing, etc.
Light 6 - Zone Tamper, press key 6 for more details, the zone with the tamper condition will come on. A wireless device has a cover not on, check the device cover.
Light 7 - Wireless Device Low Battery, press key 7 for more details, the zone/s with a bad battery will come on, replace the zone device battery, then open door/window should clear this trouble. If no zone light comes on after pressing key 7, then it is a wireless four button remote keyfob that needs new batteries (usually 2, 2025 batteries). Should you have 2 or 3 remotes it would be wise to just change the batteries in all of them.
Light 8 - Loss of Time/Date - Step 1 – At your keypad, enter time/date programming by pressing [*][6] + [Master Code] + [1] Step 2 – Enter [HH:MM] [MM/DD/YY] Step 3 – Press [#] to exit Note: Program the time using military standard (e.g. 8:00 pm = 20:00 hours)

How do I “Bypass” a Zone?

Step 1 - At your keypad, press [*] [1] then your 4 digit access code.
Step 2 - Enter the two-digit number of the zone(s) to be bypassed (01-64), then press [#] twice to exit.

How to get a green light back

The most common reason a “Green” Light would not appear on your keypad is because a door or a window is left open. Check all doors and windows, or hit the left or right arrow key on your keypad to see which zone is open. If all doors and windows are closed, and you cannot get a “Green Light,” call ACF Alarm for Service.

How to set the time and date

Step 1 – At your keypad, enter time/date programming by pressing [*][6] + [Master Code] + [1]
Step 2 – Enter [HH:MM] [MM/DD/YY]
Step 3 – Press [#] to exit Note: Program the time using military standard (e.g. 8:00 pm = 20:00 hours)