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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.

*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 Alarm 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 us

Metro Detroit Headquarters

20800 Southfield Road
Southfield, MI 48075

Protecting your neighborhood and 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

Over 90 years of trusted service

Love the alarm and the app to use it
Rick Cohen
Rick Cohen
15:22 26 Jan 23
Jay, the service tech resolved all of my camera issues and did a great job.He's very knowledgeable and professional .
David Marton
David Marton
14:24 20 Dec 22
I Love it here🥰🥰🥰
Tiffany McSwain
Tiffany McSwain
23:15 17 May 22
I put eggs on the stove to boil forgot them and went to the movie. When the house filled up with smoke and Guardian Alarm couldn't reach me they dispatched the fire department. I will be forever grateful for their quick response. It could of been a disaster. The smoke alarm is always monitored even when house alarm is not set. That feature alone is worth cost of system..
Barbara Clark
Barbara Clark
14:35 09 Sep 19
👍👍👍
Hass ALI
Hass ALI
18:26 09 Sep 22
Our company has been with guardian Alarm for over 30 years they never failed us
ALBERTS FURNITURE
ALBERTS FURNITURE
16:33 22 Jan 23
Technician was friendly, thorough and knowledgeable. Highly recommend Guardian. Have been with them for years, never disappointed.
Gayle Stewart
Gayle Stewart
14:47 04 Nov 22
The technician was very informative, helpful and gave information I was not aware of.
Deborah Blakely
Deborah Blakely
19:45 08 Dec 22
Our Keypad is displaying there is a comm error for which we contacted the customer service on the 20th of July 2020 and they scheduled our service for the 25th of July 2020.They came and fixed and upgraded the communication panel after some minor issue on the 25th.Hope to receive similar or better service in future.
Sailesh Agarwal
Sailesh Agarwal
18:04 27 Jul 20
Great food,great service!!
Wendell Raby
Wendell Raby
23:08 29 Dec 19
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