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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. 

Contact your local security expert

Call 248.849.9994

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

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.

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

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