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The Most Trusted Name in Security Since 1930

Detroit Security Systems
for Homes and Businesses

Protect your property with local security solutions from local experts in the Detroit metro area. We’ll guide you to the right combination of intrusion alarms, video surveillance, access control, fire and life safety, remote video monitoring, and more.

Award-Winning Security.
Locally Trusted.

Protecting Your Business & Home

Solutions for Homeowners

Home security systems should feel simple to use while still providing meaningful protection. That can include intrusion alarms, cameras, smart alerts, and life safety features that help you keep an eye on your property, whether you are home or away.

Solutions for Businesses

Business security often requires a broader solution set. Video surveillance, access control, intrusion alarms, remote video monitoring, fire and life safety, worker safety, and analytics can work together to create stronger visibility and more control across your property.

Your Local Alarm Company

As a local provider, Guardian Alarm helps homeowners and businesses across the Detroit metro area evaluate the right mix of alarm systems, cameras, and monitoring solutions. We combine local service with recognized expertise to give customers confidence that their systems are backed by a company with proven experience.

From single-family homes to complex facilities, we offer camera systems, remote video monitoring, alarms, access controls, and other security solutions. Whether you are securing a home, upgrading an existing system, or planning a broader security strategy for a commercial property, our team can help design a solution that matches your goals and the realities of your location.

Call to speak with a security specialist or request a quote to get pricing for your needs.

Detroit’s Trusted Partner in Security & Service

Our team is proud to be recognized for both local service and broader industry excellence, giving Detroit customers confidence in the systems and support behind every installation.

Nationally-recognized leader in security and innovation

Experienced in installation, monitoring and support

Trusted by homeowners and businesses across the Detroit metro area

What Your Neighbors Are Saying

Sandra C.
Nathan was great helping me choose the coverage I need in order to feel secure in my new home. Rudy did a great job of installation, helping me understand the system so that I could make decisions to customize the features to my needs. He payed attention to aesthetics as well. I especially appreciated Rudy taking the time to teach me how to run the system.
Janet T.
I just had my system service and had a wonderful experience. Dave Smith was my technician, he is a very pleasant and knowledgeable young man. Dave represented Guardian Alarm well. I have been a loyal customer since 2006 (20 years) and will continue to be a customer.
Lisa J.
John Fay arrived on time came in and he did an excellent job. John is very polite and efficient explains everything to you and answers questions that you may have he is very pleasant . Thank you John Fay
Yvonne
Oh my God Guardian has the nicest employees working for their company. They are very informative. They take their time to let you understand their equipment. They’re not out trying to make a sale or just beat you out of money. They really want to help and that makes a difference when you’re dealing with a company Tim came out today and I feel 100% satisfied with the work that he did for me. I appreciate him greatly and I suggest anyone just not just the people are kind and nice. Their service is A1. You won’t regret it. Thank you, Guardian.
Curtis W.
During the installation of our home security system, Tim K, the installer, went above and beyond to ensure everything was completed perfectly. He arrived at the scheduled time, explained each step in the process . Equipment was set up efficiently. Tim K provided a thorough walk-through of the systems features. Tim K was very professional and that made for a smooth and efficient installation.
Bob A.
John was fantastic, knew exactly what he was doing and was thorough in completing all requested work. Thanks, John!
Laura B.
My experience with Tony, the Manager was impressive. He had to work through some previous missteps in communication with others to resolve any issues or concerns on my end. It's rare to find such an effective manager anywhere these days.
Tim K upgraded my existing alarm system and added cameras.
He was prompt, professional, knowledgeable and very accommodating and open when I asked for a change in location of the monitoring screen. He made sure I understood everything and asked if I had any further questions. I was delighted to find such an expert and would highly recommend requesting Tim K. if you choose Guardian alarm which I also highly recommend as a company.
Debbie S.
Tm K. Was ABSOLUTELY INCREDIBLE! What an asset to Guardian Alarm! He was professional, on time, extremely knowledgeable, and very informative. We could not have had a better experience.
Lauren
Rudy was super helpful with our rental property alarm system technical issues out in WalbridgeOH. Very professional, friendly, and knowledgeable. Thank you for your help!
Andrew S.
Jeffrey Boggus was at my home today to reconnect my new garage door opener back into my alarm system. He did a great job and would highly recommend him and Guardian Alarm
Milton C.
John Fay is very knowledgeable about job and helpful. Thank you John for your help
Mark C.
Rudy did a great job installing our system and answering all of our questions and addressing our concerns. Very efficient and timely service. Highly recommend!
mproulx49
Outstanding Job by technician John Fay. Provided all needed information and even gave additional suggestions to ensure we would get the most out of our system. Would highly recommend him for any service that is needed.
Andrew W.
Rudy has been exceptional in getting the job completed. His professional attitude in making sure what was quoted matches the work his is doing. He is always making sure I am satisfied with the work once completed. I look forward to working with Rudy in the future.
Claire C.
Tim did an excellent job of explaining what and why he was doing as he installed our equipment. We appreciated all of his help in meeting our needs.
Joyce M.
Thank you John Fay for your promptness to our Battery inquiry. You were fast, efficient and answered all questions I had. You made all you said and did very easy for my understanding. Thank you Guarduan for sending John our way!
Franklin
Rudy and Frank were very thorough and tested all zones. They explained all settings walking through the process of set up.
Lori R.
Just wanted to share that our Guardian Alarm system install team Michael, TJ and Cameron were all outstanding. The crew had to come out twice because the extremely cold weather initially posed a problem. Michael was so thorough with all the details of our installation and made sure our questions were answered. TJ and Michael also made sure that we were okay with camera positions and alarm device placement before they permanently installed them. They truly worked with us every step of the way and provided great customer service.
James P.
Justin V With a great help to me and my family. Great personality
Richard G.
Eric was the best tech I have ever had at our home. He was incredibly thorough and professional. Very helpful in explaining what he was doing, never made me feel like I was bothering him.
Aaron M.
The past couple days. We have been upgrading our alarm system. New panel. New door bell. New flood lights. New senors. New everything. They been sending tech TJ. Best choice ever. He is always reliable. Friendly. Does the right job every time! I appreciate everything TJ has done!!
Jay P.
Rudy is the best. Very professional. Explained things completely.
Bryon N.
Dave Smith was the technician that serviced our system. Very knowledgeable and professional. Thanks
Sharon C.
We recently had our doorbell and security system upgraded, and Justin did an outstanding job. He was punctual, professional, and extremely knowledgeable. He took the time to explain everything clearly, and made sure we were comfortable using the system before he left. We really appreciated his attention to detail. If you’re considering this company, ask for Justin, you won’t be disappointed.
Landon J.
Rudy was awesome! He did a great job installing all of the cameras and was a tremendous help!
Team J.
Rudy was awesome! He was so helpful getting everything setup and was very friendly!
Jackie C.
Thanks for fixing my alarm. Very much appreciated.
Charles L.
Your tech Albi was extremely courtesy , knowledgeable and excellent clean up and non-evasive wiring of our additional camera as well as 3 extra sensors. Also, your other tech Andy, who has come out in the past is also great as well.
jay S.
Technican was were helpful and professional went the extra mile to ensure everything was repaird
Roman G.
Thanks for the guidance of our new system. I am enjoying the features of our updated alarm system. I thought I understood the quiick arm feature but I guess I prefer the words quick arm on the alarm like the older model. However, it is fairly rasy to use. John was very helpful.
Chris N.
Justin was extremely knowledgeable and explained how the process works and how to use the devices. He did a terrific job with the installation.
Sue M.
TJ was great. Went above and beyond to make sure everything was perfect when he left! And is a super nice guy!
Jameel W.
Very Professional I Give David Smith 10 ⭐'s Very Great Guy!!!!!
Melissa L.
The technician who came to my house was friendly and fixed all issues. He also made some changes to make things work more functionally.
Jerome H.
TJ was very professional and knowledgeable of my upgrade. He went through the process of showing me how to operate my new system and explained how it works. Also he was very respectful enough to remove his shoes when he entered my home and I would very much like to thank him for showing me that he cares.
Thank you again!
Janice M.
We had a new security system installed today by Guardian. TJ did the installation. Super nice guy, very knowledgeable and thorough. I love the system and the app is great! Thank you TJ!!
georgia K.
Tim was so very helpful and courteous. He was a great guy and did a great job.
Tucker A.
Tim K was out at our business today and got us all set up with a new alarm system. When he was done with the work, he took the time to go over how to arm and disarm the system and how to use the mobile app. It was very helpful. I recommend this service!
Frank W.
Very friendly and knowledgeable. Fast but thorough.
Hugh H.
Tim was very quick and efficient and provided the best customer service I have experienced in a while!
Christine F.
Tim Kapottos did an exceptional job updating our system. He was conscientious, thorough, and explained everything very clearly. He provided truly outstanding customer service and it was a pleasure working with him and the Guardian team.
Laura P.
John Fay was tremendously helpful and very professional and pleasant.
Kevin L.
Took his time and made sure everything worked well and that we understood how to operate the system.
Scat Pack D.
Michael was awesome, very professional.
Thanks, Michael..
M K.
John F. was great. Very professional and CLEARLY has experience. He was efficient and I was honestly so pleasantly surprised based on other service calls. I will request him in the future.
Erik O.
TJ did a fantastic job upgrading our system. He took the time to explain everything in detail, ensured we understood our new options, and performed a top-notch installation. He also followed up quickly with some questions we had afterwards. Highly recommended!
Gerry G.
Tim the installer was great! Super helpful, knowledgeable, and nice to work with.
Steven P.
Have had a wonderful experience with Guardian! Great customer service on the phone when I have called them. Then Justin came out and set up our system. He was attentive, friendly, knowledgeable, and very patient as my 4-year-old followed him around the entire time. The app works well. Would strongly recommend!
La Shaune C.
Tim did a great job and he was very informative. Thanks a lot for your great service.
Christian P. H.
Purchase and instalation went great! Very pleased with the system.
Perry T.
Tim Kapottos, my service technician was great during my installation. Friendly and very knowledgeable, very easy to understand. He is definitely a "keeper" employee!
Susan M.
Service via phone call to reconnect two keypads was excellent. The problem occurred after new routers were installed at my house.
The technician was very knowledgeable, patient, friendly, and kind.
The interaction took a long time … probably due to the fact that the technician was dealing with a non-techie grandmother.
My thanks to Roger!
Dave G.
I had three doors replaced in my house and garage. I haven’t painted the trim yet but the alarm sensors had to be reinstalled. The service technician Mike did a great job. He was prompt, courteous and professional.
I couldn’t ask for better service.
Hopefully Mike gets some recognition for his fine work.
Kevin H.
Tech was excellent, even cleaned up after he finished.
JB
My "installation" was rather simple. Having been a customer already, I only needed to have my system reactivated. For those that don't know, it's a simple process of going through the panel to establish the connection with the monitoring and calibrating the cameras. After that you test the system and you're off.
My technician was Justin. A knowledgable nice guy who knows his stuff and made the process go by quick. If I were to require any technicians to come out for any reason in the future, I'd request him and be happy to wait whatever time was needed. A lot of people may know how to do the job but not everyone is great at customer service. He is.
nelson B.
TJ was very friendly and professional. He installed my alarm and explained everything with patience. Guardian is the way to go for a home alarm system.
Charles D.
TJ was very kind and knowledgeable would recommend to anyone.
Harvey T.
The service technician was very knowledgeable about the system. He investigated the cause of the trouble notifications and corrected the problem. He was very energetic and completely investigated the system to make sure everything was working correctly. He will be returning to replace some defective components.
Laura G.
John was excellent in servicing our alarm system. He took time to explain and helped with understanding of panel and App.
We certainly appreciate the customer service he provided. Thank you.
Matt T.
John did an excellent job servicing our system. He was very courteous and answered any questions I had.
Brighton
Tim Kapottos deserves more than 5 stars for work “above and beyond” upgrading my Guardian alarm system in the fall of 2025. He is an expert technician, a great problem solver and a genuinely nice person. The upgrades were expected to be relatively simple, but turned out to be more complex. Tim had to solve a number of unexpected problems to complete the work, and he worked methodically to solve each one. He also took the time to explain what was happening. The next time I need a Guardian technician, I hope it’s Tim (or someone he trained).
Max E.
Justin was great!! Was thorough, discussed all details, patiently answered all my questions and left with a fully function, easy to operate, updated system. He was friendly and pleasant. If I had known it was this easy, I would have updated our system years ago. Highly recommended!!
gatrailboy
Justin V was a great and knowledgeable technician and helped us greatly. Thanks for the good job. Guardian has been a good choice for us !
No O.
John is very nice and very professional
He did a great job
Annette
TJ came to my home and updated my alarm system . He was polite & professional and explained what he had completed. I would highly recommend TJ.
Stratford P.
Tim was great, he explained how to operate the new unit very thoroughly, great customer service.
Roxane C.
The representative was friendly and knowledgeable about our monitor. He was willing and able to answer all our questions for us to use our equipment to its fullest pitenti
Demetrius W.
Service man was great. Knowledgeable and sharp.
5 star service
Gail H.
Tim was awesome! He was very knowledgeable and offered some great suggestions for me! He has an awesome spirit and a caring heart! Thanks, Tim for your help!!
Nancy F.
John, our security installer was very knowledgeable in all that was required to have a super installation and pleasant to have in our home
Sherie T.
Tim K. Did an exceptional job with my Guardian Alarm Service install. He is knowledgeable and professional. I feel secure.
Connie M.
EXCELLENT! Patient! Attentive & knowledgable. Pleasure to work with. Recommend highly!!!!
Grace G.
TJ was awesome and very dedicated to helping me install my alarm system!
David B.
John was very professional in appearance and attitude, got right to work in correcting the issues. Would have no issue of him servicing or
Alarm again in the further.
Bart S.
Justin V was very helpful and thoughtful. He took the time to explain the process worked. He also was very courteous about making sure he didn’t make a mess of our floors. I had a great understanding how the guardian alarm system works.
Connie M.
John Fay was professional and courteous. He was efficient and completed the job needed.
Mike D.
Worked with Daniel Erce a few years ago when my wife and I bought our home. He helped me get set up with a great system. His knowledge and expertise is unmatched compared to other people/companies I have used for home security in the past. Highly recommend Guardian and Dan!
patricia G.
John is a fantastic and very knowledgeable technician. He is friendly and so very patient. Great Service
Mike S.
Justin V was an amazing technician! He was on time, diagnosed the problem quickly and replaced the radio that was having issues. He was polite and cordial and knowledgeable, as well. He answered all of the questions about our system and any future upgrades that we had. Highly recommend having him out if you are having issues with the alarm system.
Fred N.
After our alarm system provider of 35 plus years decided we were not worth making their system work, we were given Guardian's contact information from a family member. The installation was completed in one day by Justin V. He figured out everything about our old system, kept us informed and educated us on the new system. The sales person, Kara even stopped by to make sure everything was going smoothly. What a difference from Cincinnati Alarm. Very customer focused. So far we are very satisfied with the new system.
Bobbie M.
John was amazing. He was courteous, friendly and so helpful. Great experience.
Becky K.
John Fay was a very nice man. He took care of our issue very efficiently.
Jay H.
John Fay was awesome. On time, got it done quickly, and was totally professional
Marilyn N.
John Fay was very thorough. He was polite and answered my questions. I highly recommend him.
Bonnie C.
Dave went above and beyond! Extremely polite and helpful!
Kathy L.
John is patient, thorough, thoughtful. The job involved an unexpected solution but he was calm, confident and professional throughout.
Enjoyed sharing stories with him, too!
Nzingha D.
John Fey is great! He's enthusiastic and professional. He does an excellent job and is friendly and shows that he takes pride in his work and wants the customers to be satisfied with the company.
Darlene L.
John Fay was an Excellent service provider. Our home has many similar descriptive rooms so it’s not easy to determine the names given to each installed alarm component and I was of little help. He looked for malfunctioning alarms and found each one bringing each to the alarm box to match numbers to make sure it was correct. Not only did I guide him in the wrong direction, but he kept his same upbeat demeanor with much kindness and patience while troubleshooting all the alarms. I couldn’t ask for a better service representative of Guardian Alarm. John was the best!
Virginia B.
John fay, was extremely informative about my system able anwering my questions.
Catherine M.
Today, 11/12/25, Guardian technician John Fay came to my home to determine why my new wireless doorbell could not connect to my WiFi system. The problem started 11/6/25, when I recharged the battery for the first time and it did not reconnect to the WiFi system. I called Guardian Alarm technical support and worked with Andre for 30 minutes but the doorbell could not connect. He scheduled first available appointment for 11/12, noon to 4 pm window. John Fay called ahead and arrived at 2:25 as estimated. John updated the firmware and then connected the doorbell with no problem. He was professional and efficient, patiently answered my questions and provided tips on setting the doorbell for best use in my location. I will be asking for John Fay if I need any service calls in the future. I am pleased with service and quality of equipment Guardian Alarm provides.
Maria N.
I couldn't have asked for a better technician. Rudy was very knowledgeable respectful of my home and very nice spectrum is lucky to have a worker like that. He explained everything clearly and kept asking if I had any other questions. They need more workers like him. The only disappointment I had was the equipment they use. The wireless contacts they use are large plastic and are unpleasant to look at.
a B.
David was very knowledgeable about our system which is quite old and fixed the issue quickly.
Nick G.
Anthony Hart went above & beyond answering any and all questions we had. Everything was done smoothly and as said. Can't be happier with the friendly & professional service. Will be recommending him & guardian to friends & family.
G W.
Great company. Great reliable service. I’ve been a customer for many years and can’t think of anyone else I’d go with. John F came to our home today. Very friendly, efficient, answered all our questions.
Georgia W.
John Fay was the technician who came to our home today. Everything he did was absolutely perfect. He set up the contacts and answered all of our questions. I highly recommend him if you need support from Guardian Alarm
Geneva H.
Justin V. Is a professional. Courteous and knowledgeable technician. It was a pleasure having him in my home.
Alexander M.
John, the technician, did an exceptional job at resolving our system failings. He really got our lights back on!
Wendy B.
Getting my smoke detector and fire alarm system installed for my mental health group home facility was definitely a job!

The installers Anthony and Dave were very helpful and great at what they do.

I had the pleasure of working with Selena who overlooked the details and was able to work out Some minor issues that we came across.

Keith, their boss was a pleasure to work with and even was able to give me options for the down payment and balance due after installation.

Overall, I appreciate working with Guardian Alarm and would recommend them for any project big or small.

Thank you guys for your time and patience. Im not the easiest costumer for sure…..😉

Wendy Barnes.
Charlotte M.
Natalie in sales was beyond amazing! Usually when you call big companies you get a robot or someone who seems like they really don’t care. Natalie was so personable and helped my husband get everything in order. If you want a company that you can talk to REAL, local people who care, use guardian
Ttess J.
John was AWESOME & he gave me some great suggestions! He was courteous, kind, and a great listener.
Jodi R.
Rudy was fantastic, always checking in with me to let me know where he was in the process and what would be happening next. He was polite, professional, and cleaned up after himself each day. Thanks Rudy!
Rachel H.
Sam came to Dundee Housing Commission and was polite, efficient and cleaned up the work area. Would highly recommend his work as a technician or installer.
Omally O.
From the top to the bottom they're great and professional!
Richard S.
Rudy is a super installer. So much too learn and do. Way to go Rudy. We appreciate Guardian and the good work that they do. Rick Rosie Sabo Toledo
Jessica M.
Writing for Paws and Whiskers Cat Shelter. Rudy was an excellent tech who made sure all of our cameras were right where they needed to be. He talked us through the process of installation of our new cameras, then also made sure we understood the app. I highly recommend Guardian and highly recommend Rudy to be your technician.
Diane F.
Tech very friendly and professional! Recommend this company. Stands behind their products!
Bonnie W.
Anthony was very knowledgeable, efficient and respectful
Morgan H.
Rudy was very helpful in getting me access to our cameras!
Emily K.
Rudy does an amazing job is always easy to work with!
Zach L.
Rudy did a great job on the install and getting me set up!
Kristy W.
Rudy has been amazing, very professional. He even took the time to sit down and teach me the programs
Tommy D.
Rudy was great and he made sure we had access control on the gate before employee occupation of building

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Custom Solutions to Protect Your Home

With customizable solutions and transparent pricing, easily implement our security systems to protect what matters most.

Essentials

A smart starter system that includes door and window sensors plus a motion sensor to catch any unexpected movement. Everything you need to feel secure, right from the start.

Essentials + Video

Stop intruders at key entry points, plus see what’s happening inside or outside from your phone. With live video feeds and real-time alerts you can keep an eye on your home from anywhere.

Essentials + Smart Home

The ultimate in smart home protection. Secure key points of entry with smarter front door security. Live video feeds, alerts and complete control of your home, right from your phone.

The Detroit Leader in Business Security

With a strong history in the Detroit business community, we have extensive
experience protecting businesses, their assets, and employees.

Remote Video Monitoring

Add live visibility and proactive oversight to help identify issues earlier and improve response workflows.

Fire & Life Safety Support

Code-conscious protection with systems designed to help protect people, property, and continuity.

Worker Safety

Improve visibility and safety support for staff in higher-risk or lower-visibility environments.

Video Surveillance

Monitor entrances, exits, common areas, lots, and other key points with smarter camera coverage.

Mobile Security Towers

Deploy flexible, visible monitoring where permanent infrastructure is limited or needs reinforcement.

Intrusion Alarms

Detect unauthorized access and strengthen after-hours protection for homes and businesses.

Access Control

Manage who can enter specific areas and create more control over sensitive spaces.

Business Analytics

Use system data and reporting to support stronger decisions around traffic, visibility, and operations.

Serving Detroit and Nearby Communities

We provide security solutions throughout Detroit and across nearby Metro Detroit communities. Depending on your service model, this section can reference places such as Dearborn, Southfield, Livonia, Taylor, Warren, Royal Oak, Ferndale, and additional surrounding areas.

Other Michigan cities we serve include:

Contact Your Local Detroit Security Experts

Receive a custom quote for your home or business today.

Customized based on your security needs and budget
Join the one million+ families and employees protected daily
Professional installation and ongoing support from local teams

Where You Can Find Us

Our local office location

26711 Northwestern Highway
Southfield, MI 48033

Other States We Service

    What Makes Security & Protection in Detroit Unique

    Security needs in Detroit are rarely one-size-fits-all. Across the city and broader Metro Detroit area, properties can range from homes and neighborhood storefronts to offices, warehouses, industrial sites, parking areas, and multi-entry commercial buildings, which means many customers need more than a basic alarm setup.

    For homeowners, that often means combining intrusion alarms, video surveillance, and life safety features into a system that is easy to manage and built around the property. In a city with a wide variety of home types, block layouts, and neighborhood conditions, Guardian Alarm can provide the right monitoring solutions without adding unnecessary complexity.

    For businesses, security often needs to reflect the kinds of industries that are common in Detroit and the surrounding region. The area has strong concentrations in automotive and mobility, manufacturing, transportation and logistics, health care, and professional and business services, which can create added complexity around employee access, deliveries, parking areas, inventory movement, and after-hours visibility. That is why many Detroit businesses benefit from a layered setup that brings together access control, intrusion alarms, video surveillance, remote video monitoring, fire and life safety, and business analytics.

    In a region shaped by major logistics, transportation, and industrial activity, layered security solutions tend to make the most sense. Bringing alarms, cameras, access control, fire and life safety, and monitoring together can create stronger visibility and protection for both homes and businesses in Detroit.

    Speak with a local security expert today:

    Frequently Asked Questions

    What types of security systems do you install in Detroit?

    We provide solutions that can include remote video monitoring, fire and life safety, worker safety, video surveillance, mobile security towers, intrusion alarms, access control, and business analytics.

    Do you provide alarm systems for both homes and businesses in Detroit?

    Yes. We serve both homeowners and businesses in Detroit and the surrounding Metro Detroit area.

    Do you offer video surveillance and remote video monitoring?

    Yes. Video surveillance and remote video monitoring are both part of the solutions that Guardian Alarm offers.

    Can you help with fire and life safety systems?

    Yes. Fire and life safety is one of the core service categories we can provide.

    Do you serve areas outside Detroit?

    Yes! In addition to the Detroit area, we also serve greater Michigan, Ohio, Tennessee, Arkansas, and West Virginia. See our Locations page for a full list of the service areas we support.

    How do I get a quote for a security system?

    Customers can call directly or fill out a quote form to get pricing and recommendations.

    Can you upgrade an existing alarm or camera system?

    Yes. We work with many customers when evaluating upgrades to older systems or expanding existing coverage.

    What is the difference between intrusion alarms, access control, and video surveillance?

    Intrusion alarms help detect unauthorized entry, access control helps manage entry permissions, and video surveillance helps improve visibility and review activity across the property.

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