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Metro Detroit’s Best Security Monitoring Systems

Since 1930, Guardian Alarm has been the trusted source of home and commercial security systems for countless Metro Detroit families and business owners.

Metro Detroit’s Best Security Monitoring Systems

Since 1930, Guardian Alarm has been the trusted source of home and commercial security systems for countless Metro Detroit families and business owners.

*FOR A LIMITED TIME, NEW CUSTOMERS CAN RECEIVE A FREE VIDEO CAMERA OR DOORBELL (UP TO A $249 VALUE)!

*New residential customers only. Cannot combine offers. Monitoring agreement required. Some restrictions apply. 

Smarter home security

Guardian Alarm’s fully-encrypted smart home alarm systems monitor points of entry or detect motion with innovative tools that keep your home safe and convenient. You can control your system from the alarm panel or your mobile device to arm/disarm or to view your cameras.

Using our local 24/7 monitoring center, Guardian Alarm will alert your local police, fire, or EMS and dispatch immediately in the event of smoke or carbon monoxide. You can even have your home monitored for any water detection to save you thousands of dollars in repairs.

Drone shot of a neighborhood protected by Guardian Alarm wireless cameras and security system

Protecting our neighbors

Headquartered in Southfield means that our team lives and works in the Metro Detroit communities that we serve. Making you and your neighborhood our highest priority.

We’re also actively involved with community organizations in the Detroit area to help give back, engage with those living and working around us, and build lasting partnerships.

Guardian Alarm shield protecting your home and business

What is the Guardian Difference?

#1 Security Provider in the Midwest

Since 1930, Guardian Alarm has grown to become one of the largest security providers in the Midwest, working every day to help protect families and businesses.

24/7 Security
Monitoring

From the first signs of detection to dispatching authorities, our monitoring specialists are specially trained to help detect danger before it’s a disaster.

Ongoing Maintenance
& Support

Our technicians can repair, upgrade, test, and maintain to keep your security system working properly for years to come.

Professional
Installation

Our certified technicians test and ensure your system is functioning properly to provide years of dependable service.

Contact Your Local Security Expert

Call 833.243.5645

To start protecting you, your family, and your home, call Guardian Alarm today or fill out the form.

In Our Community

Staying involved and giving back

Guardian Alarm cares about the communities we serve. We’re actively involved with local chambers and organizations to help give back, engage with those living and working around us, and build lasting partnerships. Each year, we encourage our employees to spend time volunteering, giving back to their favorite non-profit organizations, and engaging with their community.

Official provider of Project Green Light

Project Green Light started in 2016 as a crime intervention tool. It originally targeted gas stations since they were seen as crime hot spots but has expanded to include fast food restaurants, churches, apartment buildings and more. Guardian Alarm supports Project Green Light by providing the required indoor and outdoor security cameras that transfer live footage from local businesses to the Detroit Police Department.

Detroit Project Gren Light

Where You Can Find Guardian Alarm

Metro Detroit Headquarters

20800 Southfield Road
Southfield, MI 48075

Protecting Your Neighborhood & Beyond

  • Detroit
  • Troy
  • Southfield
  • Farmington Hills
  • Bloomfield Hills
  • Birmingham
  • Livonia
  • Rochester Hills
  • Auburn Hills Royal Oak
  • Novi
  • Warren
  • Dearborn Heights
  • Brighton
  • Sterling Heights
  • Plymouth
  • Madison Heights
  • Canton
  • West Bloomfield
  • Ferndale
  • Wixom
  • Port Huron
  • Marine City
  • Huntington Woods
  • River Rouge
  • Clinton Township
  • Harrison Township
  • Howell
  • Northville
  • Lake Orion
  • Keego Harbor
  • Riverview
  • Taylor
  • Allen Park
  • Belleville
  • Clawson
  • Wayne
  • Westland
  • Washington
  • Oak Park
  • Macomb
  • Dearborn
  • Roseville
  • Milford
  • Saint Clair Shores
  • Commerce Township
  • Waterford
  • Redford
  • White Lake
  • Center Line
  • Highland
  • Inkster
  • Farmington
  • Utica
  • Pontiac
  • Hazel Park
  • Hamtramck
  • Romulus
  • Marysville
  • Mount Clemens
  • Wyandotte
  • Rochester
  • Grosse Pointe Farms
  • Lapeer
  • Metamora
  • Clarkston
  • Grosse Ile
  • Eastpointe
  • New Baltimore
  • Ecorse
  • South Lyon
  • Harper Woods
  • Melvindale
  • Lincoln Park
  • Trenton
  • Algonac
  • Grosse Pointe
  • Fraser
  • Romeo
  • Berkley

Work with a name you trust

To start protecting you, your staff, and your business, call Guardian Alarm today.

Metro Detroit Customers Have Trusted Guardian Alarm Security Systems for over 90 Years

We use Guardian Alarm at our business and it has been a wonderful company to work with. We had an incident at our law office and needed an alarm system put in immediately. Guardian was able to send a sales person that same day, give me a great quote on an alarm system and get it installed within days of meeting. I also really enjoy the remote access feature of our system, because it allows me to remotely see when employees come and go from the building. The biggest selling point for me though, was that they are local and have been in business for over 80 years. If you need an alarm system and want quality work, Guardian Alarm is a great choice.
John Smith
John Smith
12:08 08 Sep 17
This is honestly the best alarm system and service I have had. Carlos was very attentive and cared about mine and my families safety! (: Thank you Carlos
Angela Hinojosa
Angela Hinojosa
15:57 31 Mar 21
A very good place to work at
nadja bradley
nadja bradley
21:26 03 Mar 20
Great company
Craig Lamb
Craig Lamb
03:41 10 Oct 17
We have been with Guardian Alarm since 1986. Overall we have been satisfied with their service. We have occasional equipment or service issues but they have always been responsive in getting things resolved. We have been using the Guardian Connect app for several years without issues.
Tom Dusbiber
Tom Dusbiber
02:44 13 Feb 19
Been a customer of Gaurdian for more than 10 years. Customer service is wonderful. Great local business to support
Joy Full
Joy Full
20:08 04 Nov 17
Have been using guardian alarm for five years now we love it feel safe and secure all of our windows and doors as well as a glass break motion sensor carbon dioxide and fire detection and four cameras touchpad works great looks good would recommend this to anybody who wants a good System with reasonable Monitoring fees
We have been with Guardian for 44 years. The product and the service has always been excellent.
Arnold Kollin
Arnold Kollin
23:42 14 May 19
Very impressed with how they work! Thank god I got rid if my adt for them. Carlos did an outstanding job
Caroleve Bazzi
Caroleve Bazzi
16:06 31 Mar 21
ok
Stiver Cooper
Stiver Cooper
07:03 08 Sep 17
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