CMPS Security
Verified Pro
~4 years online5.0(19)
Alarm System Installation in Great Falls, MT
Compare 23 alarm system installation contractors near you in Great Falls and surrounding area with an average rating of 4.5/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 24, 2026
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Verified Pro Installers
cmpsgf.org
Electric City Sight & Sound
Verified Pro
3+ years online5.0
Shwintek
Verified Pro
3 years online5.0(1)
Door Systems of Montana - Great Falls LLC
Verified Pro
~27 years online4.9(287)
Alert Services
Verified Pro
3½+ years online4.8(8)
Other Businesses in This Area
Mountain States Alarm
Advanced Fire Systems
5.0Alert Security Professionals
5.016½+ years onlineEntre Technology Services
5.028½+ years onlineFASST Extinguishers Inc.
5.010½+ years onlinePK LOCK
4.810½+ years onlinePye-Barker Fire & Safety, formerly Mountain Alarm
4.74+ years onlineA to Z Lock & Key / Central Montana Lock & Safe
4.6~14 years onlineReference Audio Video
4.620+ years onlineCascade Electric
4.426½+ years onlineSound Pro
4.48½+ years onlineCompliance Monitoring Systems (CMS)
4.317½+ years onlineParadise Fencing and Construction, Inc
4.218+ years onlineFirst Security Pawn, Inc
3.9~6 years onlineVivint
3.820½+ years onlineGreat Falls Fire Sprinklers
3.7~6 years onlineSecuritas Security Services USA
2.723+ years onlineAlarm System Installation in Nearby MT Cities
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Alarm System Installation in Great Falls, MT
Great Falls alarm system installers in this directory cover central Great Falls, Black Eagle, Sun Prairie, and surrounding Cascade County. A typical 3-bedroom Great Falls home with door/window contacts, motions, glass-break, and 24/7 monitoring runs $1,800-$3,400 installed plus $35-$60/month for monitoring.
Great Falls Police charges for false-alarm response after the second event. Most monitored systems use cellular over LTE. Cold winters demand cold-rated outdoor sensors.
Frequently Asked Questions
- Do I need a permit for a Great Falls alarm?
- Great Falls Police requires alarm registration in some scenarios.
- What about cold-weather sensor reliability?
- Modern wireless sensors are typically rated -10°F to 120°F.
- Should my alarm integrate with cameras?
- Most modern systems do.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Great Falls and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.