Security and Peace of Mind

Protecting your home and providing security for the things that matter most to you is our highest priority. We offer professional, cost-effective solutions for home alarm installation, repair, and monitoring.

Stay Secure

We understand security.

We adapt each system to fit the unique needs for all our clients. With a security system from ADS you are buying more than just a product— you are investing in superior customer service.

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We believe in accountability.

Business security requires specialized expertise and performance. We protect schools, municipal buildings, banks, manufacturing plants, and other mission-critical sites.

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Protecting Illinois for
Over 50 Years

Google Rating

4.9

Based on 165 reviews

Alarm Detection Systems

4.9

michael coleman

22:11 16 Dec 19

Kahlil Diab

18:24 16 Dec 19

Prompt, friendly, and courteous.

15:36 09 Dec 19

We have had a great experience with Alarm Detection Systems. We have been a customer for years. Alarm Detection Systems really does care about its customers. Recently our carbon monoxide detector needed to be replaced. Our technician, Russ, offered to change all of our smoke and sensor batteries while in our home too. Russ and Alarm Detection Systems provides very thoughtful and professional service.

Hagop Soulakian

19:12 03 Dec 19

Handled our issue with care and diligence. What was great was that they delivered on what they promised. Very satisfied from initial call to completion survey.

Phyllis Young

20:41 18 Nov 19

Bigger isn't always better. Thinking largest market share holder might be the way to go when upgrading our system, we did. However and fortunately, we weren't locked in because I cancelled the service on the last day possible. One of the new smoke detectors was faulty. Information on equipment needed wasn't accurate. I was dealing with a provider. Customer service was dismal. Despite being offered a substantial savings to remain with them, we chose ADS instead. Want the most responsive, best personal care and customer service? Use ADS! Should you have an issue, ADS will take care of you.We continue to be pleased with the excellent customer service, tech support and technicians. Thanks, ADS!

Brett Muhlhan

20:37 04 Nov 19

ADS is awesome. Great service! They are fast, efficient and communicate to the customer. We bought a house with an old system and they worked with us to update it and also fix some issues that were occurring. The techs were all on time, early even and very professional....

Brett Kendrick

20:18 29 Oct 19

I have been dealing with Alarm Detection Systems for the past couple years for a building that I manage. They are always very professional and on time for their appointment for our yearly alarm inspection. I would not hesitate to recommend them to anyone.

Spencer Zitka

16:39 15 Oct 19

James Rejowski

22:00 01 Oct 19

I had a concern that the transformer for our alarm system was overheating after many years of use. The ADS service technician Russ quickly diagnosed the problem and replaced the unit. He then ran a system check. He was punctual and professional. We are very pleased with the service.

Cindy Boban

19:12 30 Sep 19

ADS has excellent customer service. They are always quick to respond and super helpful with any questions or concerns. I would highly recommend their services.

Faruk Dadar

16:23 30 Sep 19

Exceptional customer service, on site professional Technicians and Russ was very polite explained all the issues, walked us through what he was planning to do to get the issue fixed. He was prompt on time, fast and provided an excellent Service. We would recommend that choosing ADS will be a long term best choice anyone can make.. They are the best in this service industry. Invest your money in a company which pays dividends by form of their service.

FullStaff Music

20:02 27 Aug 19

Lupe Rodriguez

22:43 15 Jul 19

Joan Boldan

14:36 01 Jul 19

ADS is truly the best. Thank you guys for coming out and helping me.

Martino James

18:47 26 Jun 19

Navel the service tech was very professional and explain why all of the issues that we was occurring with our service.

Bridget Donelson

18:31 30 May 19

The installation techs went above and beyond what was required or expected. They spent a lot of time here and made sure I was 100% comfortable before leaving. Great job!!

Gail Kennedy

23:53 28 May 19

Great customer service by Ryan. He went beyond the call of duty and did with a smile.

Robert Allison

21:01 28 May 19

Alarm Detection has been a very reliable, professional and responsive organization to work with.

Karen Gull

17:35 20 May 19

I would recommend ADS (Alarm Detection Systems, Aurora) for your companies alarm needs. They are prompt, informative, and friendly when they come to test the alarms. Paperwork from testing is received quickly.

Steve Kezios

00:53 17 May 19

You can trust ADS to safeguard your property but you can also count on them to be helpful and professional. They don't pass the buck. It really seems like they care about customer service. How strange is that?

Patrick Meyer

00:23 15 May 19

I have used ADS for over 6 years and had a service call. The technician, Israel, was one of the most thorough technicians I have ever had. Great company.

modesto monet

03:35 14 May 19

I have work be done by two worker very good customer service navíl Zaragoza and oscar they only have job done they go extra mile to complete their assignments

Bob Slater

20:49 13 May 19

Very pleased with the speed of the response to question, requests and technical assistance I received. The customer service far better than I normally see in todays environment and when I needed help in making changes the Codechange staff was not only helpful in explaining what was needed but suggested ways to accomplish the task that made the whole job much easier and faster than I could have imagined.

Stephanie W.

20:40 13 May 19

Great Service! Antonio had my problem fixed asap and he was great!

Kimberly Belle

20:40 29 Mar 19

Michelle Fisher

13:35 28 Mar 19

We have used Alarm Detection for many, many years!Always quick to respond and very accommodating! I highly recommend them!

Steve Deming

18:24 26 Mar 19

We at Raynor Garage Door Manufacturing have enjoyed many years of excellent service from ADS. As the Facilities Manager here I speak from experience when I say, the whole ADS team is always prompt, professional and courteous. The technicians are obviously well trained. We rely on ADS as a strong partner in keeping our facilities systems safe and well guarded. Thanks.

Chris Sotos

17:22 26 Mar 19

Prompt and honest service professionals

Josette Belvedere

16:25 26 Mar 19

Always there when you need them and they go the extra mile for you.

Durdana rahman

03:07 07 Mar 19

Professional and courteous salesman; affordable plans to fit my budget!

edward Ranquist

16:40 25 Feb 19

excellent customer service. Ed & Russ did great

Redeemer Elgin

15:36 25 Feb 19

They have great technicians and they are on top of your account.

Mike Szymanski

13:25 12 Feb 19

ADS continues to provide us reliable and courteous service using well trained technicians and support staff. We remain a loyal customer. Village of Barrington

Stephanie Dubnow

22:39 11 Feb 19

Mark is extremely reliable and knowledgeable. ALarm detection systems is a wonderful company to work with.

Marcia Lorenz

22:25 11 Feb 19

I have had ADS security for years. They are very accommodating and professional. If I ever have a problem they come out almost immediately to fix it. The techs are knowledgeable and trustworthy. I highly recommend ADS for your security needs.

Ronald Joyce

21:35 11 Feb 19

I've been dealing with ADS alarm company for years and I truly like the quick and compleat service that we have received from them. I would highly recommend ADS for any of your alarm needs.Keep up the great service!

Jack Monco

21:22 06 Feb 19

We have used ADS for many years. Not only are they extremely competitive but they give exceptional service. Their service people are professional and knowledgeable and friendly. I highly recommend ADS.

Diane Huber

17:17 02 Feb 19

We are a new customer of ADS and could not be more satisfied with our transition to their company. We have received excellent service from the first call to the company dispatch center to the high quality and standards of the service technicians themselves. We believe our school is now in the best of care, safety, and service for our Fire and Safety needs.

Ron Buncak

21:10 29 Jan 19

We have used ADS for many years now and are very happy with the service and staff. The techs come out and fix most problems right away.The company I work for asks me if I could find a better provider and I always tell them No Way! Keep up the good work.Thanks.Ron Buncak

Gail Tomal

17:05 29 Jan 19

The service at ADS is outstanding. When you call the company the phone is answered by a live person not a computer. The employees are courteous, knowledgeable and very helpful. The technician, Matt was there when he said he would be there and he completed the service call quickly. I would highly recommend ADS to anyone who is looking for a company that appreciates their customers.

Jack Rubin

16:46 14 Jan 19

Steve Graham

22:45 09 Jan 19

Great company Great service and great people. Have tried a few alarm companies. ADS is the best.

Sally Kinnally

23:02 05 Jan 19

Alarm Detection Systems has a very fast response time when you need them. The people are always polite and are always able to explain everything or any of my concerns. They came out and took care of one issue, then took the time to check the entire system.

St. Paul Lutheran Church

21:22 03 Jan 19

Service response time has always been quick. All technicians that have serviced our facilities have been helpful, knowledgeable and personable. A good company to do business with .

coleen thomas

17:39 02 Jan 19

WONDERFUL SERVICE, COURTIOUS AND PROMPT

Vern Diedrick

21:46 18 Dec 18

We recently required the services of Alarm Detection Services and were particularly pleased with their technician named Carlos. He went out of his way to make many changes to the network to make our system work. Our Alarm system was not operating properly and now appears to be at peak performance. We are particularly pleased that ADS has such capable people working for them and for keeping their customers safe from intrusion. Excellent. Vern Diedrick- Customer

Colin C. Campbell

16:09 11 Dec 18

ADS is a local company that we have used for fifteen years or so now. In that time we have had maybe a dozen alarms (all accidental, thankfully) and their response has always been perfect! Their service is excellent. They do all of the work themselves, no subcontractors to worry about. We have always been more than satisfied and recommend this company to anyone contemplating installing a full service alarm system.

tom dempsey

15:15 30 Nov 18

We have had 2 recent needs for some adjustments to our alarm system both times we had a different technician onsite. Each time they have been very courteous, informative and fixed the issue the first time. A pleasure to have customer service such as this. We are also dealing with some upgrades and the sales person is also rates in the same category. We have been satisfied with communication, skill and product.

Tahir Rohail Office

20:29 01 Nov 18

The representative/technician was very professional and very thorough with the inspection and testing of sprinklers and alarms. Didn't even realize he was here. I was very pleased with the professionalism. Thank you, we appreciate everything your company does.

Lou Gutierrez

17:29 18 Oct 18

my reunion

14:36 18 Oct 18

Technician called first from 15 minutes out and was exactly on time— not coming in last 5 minutes of a four hour window! He was very respectful. Solved the problem my furnace workers had caused and was clean and tidy before leaving.

D Meds

18:07 17 Oct 18

Alarm Detection has provided alarm services for my family for over 30 years. They provide excellent customer service and 24/7 monitoring of our home security system. They provide an excellent value and the comfort of knowing that my family is safe and secure. ADS is also very involved in the community since they are locally owned and operated.

Village Clerk

15:14 02 Oct 18

Alarm Detection System's service is reliable and timely. Christian, our service pro, is knowledgeable and friendly. Mr. Larson, our sales rep, offers clear information on our current service and advice on upgrades we inquire on.

Justin Galusha

16:06 25 Sep 18

Incredible company geared entirely around customer service and satisfaction.

Ron Odo

17:45 22 Sep 18

I purchased a laundry and dry cleaning business in 2006, Alarm Detection Systems, Inc was the servicer for this business and it was a month to month contract until the equipment started acting up. I called them to fix the issue because the alarms kept going off. They came to check the system several times throughout a 2 month period and kept trying to sign me up to a long term contract when I told repeatedly I’m not looking for a long term contract because I’m selling the business soon. One day I had a personal matter to attend to and my brother filled in for me, same day a schedule appointment was set, they came over and check the equipment and made my brother sign a 7 year contract with my name on it. I told them that’s not my signature and the contract should be null and void. They said if my brother committed fraud then have him arrested. I told them I’m the owner and he’s not no matter what I didn’t sign the contract and he was under the impression this was only to authorize the scheduled visit to inspect the triggers. I called and sent letters but they did not want to void the contract. I completely stopped paying because I feel what they did was very unprofessional and deceptive because I told them many times I don’t need a long term and why the heck would I need one if I’m on a month to month, it doesn’t make any sense. They ended hiring an attorney to file a suit. I sold the business shortly after and forced to pay them off through the sale. I strongly recommend you go elsewhere. The worst experience I’ve ever had to deal with. The company should be shut down. Why did it take me 12 years to write this review? Well I came across the folder with the contract and all the issues that arose at that time and felt this should not be something I let go. I wanted to let everyone know exactly what they did. By the way because of the contract and me selling a month later I had to pay for a 7 year contract which costed me with attorney fees $4500. Please please for your own good stay away from these crooks.

Chris Flowers

16:48 18 Sep 18

Prompt, Attentive and Service OrientedI have used Alarm Detection Systems for over 7 years. They take their work seriously and are very helpful. I highly recommend this company.

Craig Marlowe

16:04 15 Sep 18

Matt the technician was on time and he explained what he was going to do and then quickly repaired my system

Da Buckhunter

02:09 07 Sep 18

Very happy with the service ADS has provided us for years.

Office Warehouse Church

16:46 28 Aug 18

ADS is a locally owned, family owned business that has provided the alarm service where I work for many years. They are always professional and courteous and through the years have always provided good solutions to our alarm and entry security needs. I highly recommend their services.

Pete Oliva

14:38 27 Aug 18

Recently had a service call. The technician performed an outstanding job on rectifying the issue. Whenever alarm is triggered call back response is less than 10 seconds. Completely Satisfied customer!!!

Millie Molitor

01:47 21 Aug 18

Awesome company! So happy we decided to go with ADS. Professional, friendly, responsive company that wants to make their customers happy while providing excellent home security monitoring. This company goes above & beyond. Highly recommend ADS above all other home security companies!

Don Longacre

15:28 20 Aug 18

Perfect LOCAL business. Customer service is outstanding and everyone at ADS does the same. Used them for 30 years (or more since I can't remember!)

Methinee Kelly

15:18 20 Aug 18

Have been with this family owned security company for nearly 15 years so it’s a fine time to honestly rate them. This company has been responsive, accountable and reliable. Their staff are well trained and have a 1:1 professional approach with clients. Such a company is difficult to find in today’s business climate. If you need the best security coverage I would highly recommend Alarm Dection Systems (ADS).

Maggie Kast

19:01 13 Aug 18

The service technicians performed a prompt, thorough and accurate replacement of our alarm system panels and were considerate throughout.

Marilyn

17:30 13 Aug 18

I’ve used this service for several years. Every interaction with the staff has been professional, reassuring and friendly.

Danton Jany

16:24 13 Aug 18

ADS had a low battery warning on one of are boxes.1st They notified me. 2nd We set an appointment up. 3rd The service tech came out and was on time, polite, and did the job in a timely manor as well as up graded a chip in are other box. Thanks

Dennis Peters

14:15 30 Jul 18

I have used ADS for a number of years for the security of the company that I work for and from my personal experience I would recommend ADS for your needs. Great people to work with and very prompt.

Curt Rodin

13:45 26 Jul 18

Service has always been prompt and efficient. They really care about their customers.

Kimberly Weston-Dodd

05:04 14 Jul 18

Always Excellent Service 😀😀😀I Strongly Recommend🙌🏽🙌🏽💪🏽💪🏽

D Elect

04:08 14 Jul 18

We couldn't be any happier with the service. Our old service wouldn't fix or old system, but now with ADS they get the job done right.

Mario Mendez

21:03 13 Jul 18

Called for service and they came out right away. Service man was very friendly and professional. One of the best responses I ever received for a service call. Very happy. He took care of the problem like a pro.

Jim Friedman

20:25 13 Jul 18

We have had outstanding service from ADS for over 25 years. We trust their monitoring service, and appreciate the knowledgeable, professional, friendly service we have received from their installation and support staff.

Luk Chiu Li

19:08 13 Jul 18

I have been the customer of ADS for more than ten years now and their service is always very professional and prompt.

Bobbi Boston

16:10 29 Jun 18

I have had various alarm companies over the 30 or so years we have had a burglar alarm, but non can come close to ADS. Heather helps design the perfect system for you and was able to convert the alarm system in the house we bought over to ADS with NO cost for the system. Additionally, they re-keyed our locks for free.

Willie Gillespie

00:13 29 Jun 18

Great knowledge

Steve Schomer

14:31 26 Jun 18

Awesome, ultra fast and timely service! Always very professional with an answer to my issues. Have been a customer for almost 20 years.

Joe PALERMO

22:29 25 Jun 18

I HAVE BEEN ASSOCIATED WITH THIS GREAT COMPANY FOR 19 YEARS....VERY PROFESSIONAL, KNOWLEDGEABLE, RELIABLE AND MOST OF ALL HONEST....

William Krofel

18:33 25 Jun 18

ADS was on their toes for our alarm system when they advised that the signal back to their control station was lost. We had a new router installed and somehow the connection to ADS was lost. A service rep called immediately to check the problem? Not being able to rectify the problem over the phone they dispatched a service tech the next day. Within a half hour the service tech had the problem fixed and we were back on line with ADS. If ADS had not been pro active who knows how long our service would have been out?Great phone service, great on site tech.Thank you ADS and keep up your good work.

Cheryl Warren

18:20 25 Jun 18

We have used Alarm Detection Systems for many years at my office and they have always provided prompt and dependable service! They are very professional as they are in and out of the office areas, quickly and quietly.I would highly recommend them!

Susan Huang

18:40 18 Jun 18

What a wonderful, local company to protect my family and home. Heather is terrific! So patient and not pushy. She accessed our existing equipment and was able to use it all. Feeling safe! Thank you ADS.

Sally Roth

13:40 07 Jun 18

Israel corrected my fire alarm panel quickly and he was extremely courteous, explaining what was done and what may be needed down the road. Very happy that my town home association uses Alarm Detection Systems. Keep up the great work and customer focus!

Amy Bartemio

13:17 06 Jun 18

Our agency has trusted ADS services for our alarm needs for nearly two decades now, it is difficult to say that for any vendors nowadays. The ADS team is knowledgeable and very responsive. Customer care is top-notch! Thank you & keep up the great work!

David Berchem

21:07 23 May 18

Helpful on quick response service calls

MRT Sureway

21:14 17 May 18

The gentleman who came to our facility was very respectful and polite. He explained everything he was going to do for us and was in & out of here in a timely manner. Great company for our needs.

Sandy Chapman

21:05 16 May 18

ADS is professional, personable and responsive - I highly recommend them!

Michael Perez

18:47 12 May 18

We were considering a number of DIY home security options. At the end of the day, we felt more comfortable dealing on a personal level with local people we could trust. With the support of our friend John Spooner at Alarm Detection Systems, Heather Guthrie-Walkowiak came to our home, took us through our security options, and set us up with a package that served our needs without blowing up our budget. Then Heather got us scheduled quickly for our home install. Skip and Glenn put in a full day's hard work in getting our system installed and online. Once the install was completed, Heather and Skip made us comfortable in explaining how to operate our new home security system. All in all, we could not have asked for more from the total service experience we had with Alarm Detection Systems. Considering all the time and effort they put in from consultation to completion, I am so grateful that I did not try to DIY our home security. There is no way I could have set up anything like the system we have now, and we would not have had the service and support we get from ADS. We would not hesitate to continue to recommend ADS to our friends who are considering home security installation.

Dennis Sester

22:51 30 Apr 18

ADS did a great job of converting from AT&T to Comcast for our alarm system. Alex, the ADS technician, waited for Comcast to complete their work so the system could be tested. Alex made it look easy.

Hank Clemmensen

19:11 30 Apr 18

Last week I had some Internet communication issues with my ADS Alarm system and contacted phone support. The Tech was great, extremely knowledgeable, and very patient while he walked me through some trouble shooting steps over the phone. We were unable to resolve the communication problem and schedule a service call for the next day. ADS Service Tech arrived as promised and even called 20 minutes prior to showing up. When Mark arrived we immediately had the problem fixed, tightened up some loose wires that had been moved during a remodel job last year in the basement, and checked the entire system, in and out in under an hour. Mark was pleasant and very professional. Great job!

Oscar Regalado

20:36 18 Apr 18

This company has provided services to our organization for a number of years and I would like to emphasize a number aspects. To begin with, they are very reliable. Whenever, we need technical support they are always available and there are no surprises nor additional charges which truly demonstrates that this company is reputable and operated by honest people. Additionally, their staff is very friendly, professional, and have a high sense of initiative. For instance, when they send a technician to inspect the alarm they place major effort in sending the same technician. This is quite valuable, since he is already familiar with our system and gets the job done much more efficiently and effectively. Specifically, I would like to emphasize Navil who s truly a valuable asset for Alarm Detection Systems. He is always very approachable, professional , and knowledgeable. Considering these and many other aspects it would be a pleasure to recommend Alarm Detection Systems either for business or residential consumers. Thank You!

JoAnn Cregier

20:04 16 Apr 18

My alarm system battery was reading "low" and emitting a beeping sound. ADS left a message on both landline and cell phone letting me know to call for a replacement and made sure I knew it was covered under my plan. Jose arrived promptly early in the am and was very courteous, professional and thorough - making sure I understood what he was doing and checked all before leaving. Highly recommend ADS!

Hank Artlip

17:58 16 Apr 18

Great service!

Selden Fox

17:07 16 Apr 18

ADS was attentive to our situation and responded quickly to our needs.

Premier Academy

12:43 12 Apr 18

We have always had great luck with ADS. Their service and monitoring are outstanding. Keep up the great work ADS!

Steve Graham

20:07 09 Apr 18

Sandy Spielmann

17:11 09 Apr 18

We have been using Alarm Detection Services for several years and continue to be extremely pleased with their service and responsiveness. The annual maintenance review which is included in their service plan is always very thorough and it is performed by technicians (Jim) that are extremely friendly and very knowledgeable on our unique system.

Shane Blankenship

21:53 08 Apr 18

Robert and Joseph were both very professional, helpful, friendly and knowledgeable. It was a pleasure to have them service us. Thank you!

Sam Samules

00:17 03 Apr 18

We have used Alarm Detection Service for over 45+ yrs. We have never had a problem with their services, whether it be repair, extended services and check-ups. Their service people are very professional and supporting when help is needed or we have to understand the alarm's working.

Lisa England

15:47 02 Apr 18

They were very prompt to help out with our issue, and the technician was very friendly and knowledgeable.

Judy Blumenthal

16:04 30 Mar 18

This is a wonderful company with a very professional group of employees who truly care about their clients. We have used them for many years and during that time, it is they who call us to schedule our routine yearly check-up and if I don't return the call promptly, they call me again. There is no charge for this service- it is included in their maintenance contract. Their technicians and employees are very knowledgeable and we have been using the same technician, Tony, for every service call. He is terrific. I cannot recommend them enough!

Richard Hirsch

00:56 30 Mar 18

Alarm Detection Systems has provided us with excellent service for many years and we highly recommend them. Rich Hirsch

Admin Ashland

14:43 27 Mar 18

As a commercial building, we rely on ADS to provide service to all of our fire alarm, building access control, burglary alarm and video surveillance systems. Installation and service technicians are absolutely the best. All service is prompt and complete. Best care anywhere. - Ashland Ventures, LLC - Geneva, IL.

Tom McSweeney

13:43 27 Mar 18

Norm Holtz

23:11 26 Mar 18

Alarm Detection Systems is the best alarm company around. Sales and service are top notch. They have a monitoring station that is award winning. They are #1. Everyone there is very professional and very knowledgeable. You can't go wrong with an alarm system installed and/or serviced by them.

Edie Bisbee

14:26 24 Mar 18

Recently had a service call from ADS to solve a technical problem. The representative went over and beyond our expectations in solving the problem. He also gave information to help us communicate with ADS in the future.

THOMAS STREETY

15:28 21 Mar 18

Just wanted to say that the tech that came out to our facility was very impressive with the knowledge of our system and how to very quickly give us the new setup that we wanted for our panels. I would highly recommend them to other companies based on that and all of the communications I've had with them. Also, I have to mention that as soon as the work was done I received an email outlining everything which was very useful.

Nora Teeple

16:12 20 Mar 18

Out technician was very courteous and professional and finished the work in record time.

John Conway

20:31 19 Mar 18

Great Customer Service. The Service Tech was thorough, efficient and respectful of our house.

Sheila Griffin

19:30 19 Mar 18

Have used Alarm Detection Systems for years. Love the annual service contract which I have not had to use much! Easy to make an appointment with a specific time window and the the technicians are competent and professional. Highly recommend.

Ted Becker

17:24 19 Mar 18

Had (fortunately) a false fire alarm. I had ADS come out to clean all 9 units. Afterwards, upon looking up when hard wired units should be replaced, it appears that 10 years is suggested. Since they were close to 15 years old, decided to replace all of them. Since ADS had come out and cleaned them, they replaced all the units for only the cost of each unit...no additional labor charge! Technician was very conscientious and aligned units so that old paint marks did not show. Very happy with ADS

16:53 19 Mar 18

ADS has been extremely responsive and I would definately recommend their service to anyone looking for an alarm service.

Daniel Rocha

16:07 19 Mar 18

Harry Brodsky

02:24 27 Feb 18

Have had their home alarm service for years and have been very pleased with their customer service. Anytime I had to contact them, they have been easy to work with and service calls are scheduled promptly. Techs are professional and courteous. Highly recommend ADS!

Rose Benson

18:06 26 Feb 18

ADS is a great company to work with. When I called for an alarm that went off, Russ came right out to help us with problem and knew right away how to repair it. He also noticed our batteries were about to expire so replace them for us. Took time out to help me re-label our alarm box as the writing had faded over time. Highly recommend ADS!

Marty J

23:09 23 Feb 18

ADS has been "my" security company for both home and business for many years. They are reliable, prompt and stand behind their work. Just had a keypad replaced that was not working properly. Technician was on time, professional and friendly. I highly recommend ADS for anyone needing a security system.

Dennis Casola

20:14 18 Feb 18

Excellent service. Could not have been better.Excellent service. Very knowable service people.

John Gannon

20:34 16 Feb 18

PAMELA NASLUND

18:50 02 Feb 18

I selected ADS to protect my mother's home and my home after my experience with them at my employer before I retired from my position as Office Manager. My company had numerous issues with the security system for a couple of years, so our maintenance and executive team brought in ADS. Fixed. Done. Their sales and tech team have been just great for me too (installed 3 years ago). Highly recommended. Really.

Barbara Buri

16:56 02 Feb 18

I'm employed for RiverPlace Condominiums, the service tech came into our facility. He checked out our equipment, conducted himself in a professional manner. After completing his checks responded back to me with his finding, then left to go onto another job. I felt he was knowledgeable and would recommend this company.

john salopek

02:15 31 Jan 18

I have used ADS for all of our Commercial Alarms needs for about a year. The staff are friendly and knowledgeable. If you have a specific system they will, most likely, have the right tech. I have been impressed with the quick response, and thorough troubleshooting. Great Company, and Staff.

Bill Klein

15:32 29 Jan 18

I have been with Alarm Detection Services going on 16 years. Over that time, I have had some false alarms and even had the police show up on one occasion.From the beginning with sales and installation every person we came in contact with was friendly, knowledgeable and quick to respond.Since, we have had to have routine service calls and again the service was excellent from customer service to the technician who was sent on the call. Every error made on our part was answered quickly with friendly responses.I would highly recommend ADS to family and friends with no reservations.

Troy Underwood

19:07 22 Jan 18

I recently experienced a system issue with one of the zones being monitored by ADS. I could not tell whether the system was working or the battery to the system panel was out. When I called ADS, the customer service representative was very professional and helpful. She answered all of my questions, and served as first level of support to resolve the problem. After it was determined that I needed technical support, I was provided with some information I should have available when I called Tech Support. Tech Support was similarly professional and tried to resolve my issue remotely, but I was still going to need someone to come to the premises to investigate further. Eduardo (Eddie) arrived during the timeframe that I was scheduled for. He showed me his badge and introduced himself. Eddie was also very professional. He identified the issue and was very thorough in explaining the problem and resolving it. He tested the areas after fixing them, and he also updated our records. He identified areas where changes were made and let me walk through the changes with him twice. All work was completed within an hour. From the first phone call to the repair, the service was 5-star quality (5 out of 5 starts). Thank you ADS for giving us a sense of relief to know that our home is secure.

Nicholas Schlageter

19:50 19 Jan 18

Technician showed up same day we called. He resolved the problem quickly.

Tonya Olsen

17:24 18 Jan 18

Highly recommend. My service tech, Milo is laid back, yet still professional. I truly enjoy our every-so-often visits. Milo never makes me feel like an idiot for asking a million questions and he always makes sure I'm completely satisfied and understand the issue he came out to handle. Thank you for all your help and the extra attention you provide to dummies like myself.

Marilyn Seidl

15:04 18 Jan 18

Very friendly and courteous. The thing that struck me is the time they took to explain what they were doing and to answer any of my questions.. Excellent service!

Stephanie Sayles

20:02 08 Jan 18

Had a nightmare experience with Protection 1 for over a year and ADS has rescued us. Staff is thoughtful and intelligent professionals. Highly recommend to any one, residential or commercial.

Angel Roman

18:12 08 Jan 18

The staff is AMAZING! The gentleman that came out to our site was very helpful and made sure that our issue was solved. We called for our alarm code pad and he even went into the settings to make sure that our keypad sounds every time we press a number. He was helpful, friendly!

Fred Orcutt

14:31 04 Jan 18

My facility has used ADS for quite a few years now and are very pleased with them. ADS always makes sure we get inspected on time and that everything works properly. When their techs come for an inspection, they work quietly and efficiently in the background and you don't realize they are their until they announce the audible alarm test. Highly recommended

Maria Gomez

18:55 02 Jan 18

Jackie Splinter

12:50 29 Dec 17

Our alarm system went into warning mode on 12/27, and I called ADS for assistance. They scheduled a skilled technician to come out that very same afternoon who was able to explain and correct the problem. We have had a great experience with ADS over the years in terms of reliability, professional service, and a sense of protection of and safety within our home. We would highly recommend this company to others.

Alan Zunamon

23:45 28 Dec 17

Have been a customer for over 20 years. Whenever we have a problem (typically a false alarm requiring a check of a particular sensor)we get a prompt visit from a competent and courteous technician. It's particularly nice to see someone you have met in the past!

Tina D

15:22 05 Dec 17

Our company has used Alarm Detection Systems for many years. They are always very responsive. Our most recent system check up indicated problems with the alarm and the technician, Ryan, was very helpful in answering questions, and letting us know what we need to do to get it fixed.

Shane Krupinski

16:52 22 Nov 17

My company uses Alarm Detection Systems for providing and monitoring our security system. Recent we had an issue with our security pad. I placed a call to ADS and explained the issue. A service tech was sent out the same day. Ray Kostalek was very helpful and courteous. He took the time to ask questions about the issue and offered multiple solutions. I am very pleased with the job he did.

Jeremy Goldberg

05:45 22 Nov 17

A GREAT RELIABLE COMPANY WITH A GREAT SUPPORTING CAST--- MARK MEYER IS ONE -- A FINE DEDICATED EMPLOYEE WHO KNOWS HIS JOB AND GOES ABOUT IT IN A VERY SYSTEMATIC MANNER--- LIKE A SURGEON , HE IS METICULOUS IN HIS WORK--- A NEAT PERSONABLE INDIVIDUAL---- ALWAYS THINKING BEFORE ACTING WHICH MAKES FOR A PERFECT JOB---- MARK IS A CREDIT TO THE COMPANY ---- A ROLL MODEL!!!!YES !I HIGHLY RECOMMEND THE ALARM DETECTION OF AURORA AND MARK MEYER AS THEIR REPRESENTATIVE!!!!

Korrin Moore

03:49 18 Nov 17

I had an issue with my alarm system. ADS had someone to my house that day. Antonio was very polite and explained everything he was doing. Awesome customer service! And the call center staff members are amazing as well. I have set my own system off a few times and I can expect there phone call within 20 seconds. I recommend ADS to anyone looking for security or fire system. They do exactly what they say they are going to do (and sometimes even more).

Alice Banks

16:36 15 Nov 17

This was one of the very best experiences I have ever had with a vendor/supplier.First, David was on time and presented with a positive attitude both toward being at our facility and in general. He became aware that I had a "list" of items which I needed to go over with him and continued with the positive response of "we will take care of it!" With this in mind, he also knew he would be unable to meet his next client and made arrangements for them. Wow!! David was devoted to our facility yet showing his dedication to the next!David took as much time as necessary to bring me up to speed regarding things I needed to be aware of with our alarm and sprinkler systems. He was prepared with proper signage required to be posted/updated and was instrumental in helping me to understand rules and regulations he addresses. Bottom line here, I had David's undivided attention and he got me through every issue I had listed. David left having provided me with valuable information including additional contact information for future needs. I cannot say enough about ADS and their incredible representative, David. Thank you all for making my day stress free and pleasant!Alice A. Banks, Safety ManagerArena Americas, Hodgkins, IL

Lilibeth Alcazar

23:27 03 Nov 17

I am most pleased with the care & efficiency of the service of ADS. When our system seemed to be having some problems they called us right away and their technician came and addressed the issue promptly. I highly recommend this company! Kudos to a very professional staff!

Mangia Wine Bar

21:52 11 Oct 17

Jason DeLancey

19:36 11 Oct 17

My place of employment works with ADS. They're a great local company with very good customer service. Really good to work with.

Sheri Wernsing

23:51 08 Sep 17

Always friendly; exceptionally helpful; excellent customer service.

Zafra Lerman

17:57 07 Sep 17

I have had Alarm Detection Systems for many years and am extremely pleased with the company. When there is a problem and I call them, a technician shows up immediately to check what is going on. When by mistake while the house is alarmed, somebody opens a door and the alarm goes off, they call immediately to see if everything is okay. Many of the times we get a technician by the name of Tony who is outstanding and his service is beyond the call of duty. We always get explanations from the people who come to the house about what is going on and what is the most impressive, is how fast the company reacts to any call and needs we express. I recommend this company highly to anybody that would like to have a security system installed.

K G

00:26 03 Aug 17

Horrible service...Always need parts that are unavailable..You wonder why constantly calling them

Thomas Wood

23:58 15 Jul 17

Chris Boyce

17:50 28 May 17

I've had dealings with ADS for nearly 30 years Great security service and the very best in locksmiths and services.

Nathan Freeborn

16:02 19 Aug 16

Good luck if you hire these amateurs to protect your home. I had a false alarm at my property which I immediately disengaged. Minutes after alarm had been disengaged I called Alarm Detection Services and was placed on hold. After waiting on hold for several minutes, I had to hang up and call again. At this point, I already had local fire department at my front door which I will be billed for accordingly. When I called Alarm Detection back a THIRD time, I was told I would have to wait until tomorrow to speak with a manager. When manager finally did call me he had no recollection of a rep coming out a couple weeks earlier to provide an assessment of our system. Eventually manager handed me off to tech support because I could no longer engage system after false alarm. I'm pretty sure my smoke alarm is defective. The tech trying to help could not figure out problem and said my only option would be to bring out a service technician to troubleshoot at $265 for one hour. No thanks. All I want to know now is how soon can I switch security providers.

Joel Weinberger

15:32 18 Aug 16

Very happy with service provided by ADS and specifically their service representative Paul Torres (#1052). Paul came to our house late in the day to see if he could schedule the no-cost upgrade to our radio since they had been unable to reach us via phone. I asked if he could perform the upgrade right away that evening. He checked his parts in the truck and was able to perform the upgrade without scheduling a future appointment. There were a few hiccups and it took about 45-60 minutes, but he kept a great attitude and was very respectful during his visit. Thanks!

Mike Gauthier

21:17 27 Jun 16

Amazingly friendly, accessible and their response and service team is perfect. Couldn't be happier!

Raymond Gao

02:27 14 Jun 16

The most irresponsible manager & VP I have experienced. Stay away from this company. They deserve negative stars.

Matt Fuller

19:31 01 Apr 16

K Hoving Recycling Westchicago

14:35 04 Mar 16

We recently used ADS for the burglar alarm at our new industrial and office facility in West Chicago. We have had a great experience working with Beth, and the service and follow up from ADS has been first rate from start to finish.

CA Adams

20:37 26 Feb 16

We are very pleased with the service from ADS from the meeting with the sales team, to the installation, and now with the monitoring team. Everyone has been very professional, nice and easy to work with. They were able to meet all of the requests that were important to us, and did so effortlessly. Other security companies were very rigid and not very honest in some cases. But ADS is proving to be an excellent choice and we are glad that we chose them.

bill uznanski

05:00 15 Feb 16

Rodger Plant with ADS is great. He will find out what your security needs are and help get the system that is appropriate for your needs.

Ken Schatz

20:42 12 Feb 16

I contacted Rodger Plant of ADS to have him contact the office manager of a business I was remodeling. I needed their alarm company to move an alarm head and the company they used didn't even respond to their calls. Rodger contacted the office manager, got the account transferred to ADS and had the alarm head moved before the other company even returned the call. Not only is ADS a great company, Rodger is a great rep! Thanks again for keeping my project moving forward.

Julie Perez

18:06 12 Feb 16

I have worked with many companies and this by far is one of the BEST companies to work with. Every time I call for service they respond in a quick, friendly manner. (It's so nice to talk to a live person and not an automatedsystem.) From tech support, (shout out to Ricky Soto, John Kile, Nikki Gray and all the other guys who do an excellent job) to install and repairs, I've never had a bad experience. Always professional, always friendly and always willing to go the extra mile to ensure that they meet the needs of our company. Thank you ADS!!!

Nancy Winchester

02:23 12 Feb 16

Roger will determine you needs and develop a system that's perfect for you! More importantly you know who is monitoring your alarm system. Even for your home, don't go with a company where you don't know who is on the other side.

Nicholas Hofer

02:17 12 Feb 16

Alarm Detection Systems makes sure they check out YOUR Alarm System needs and fills the bill.Great people to have looking out for you...

Dawn Morrow

14:59 10 Feb 16

Our window cleaning business switched to ADS after years of using another alarm company. They have done a great job being professional and quick to respond to any of our needs at the shop.One thing I love as the owner is the U Link app on my phone. I can monitor when the employees come and go to pick up equipment and supplies. It has helped make my life so much easier.With the upgraded system and the U Link app, our company now pays almost Half the Price of the other alarm company. We highly recommend ADS for business or home alarm needs.

John Fitzgerald

23:09 09 Feb 16

Great company, great people.I first came across Alarm detection systems two years ago, and have nothing but good things to say. Everyone I speak to there is prompt, knowledgeable and friendly, with a HUGE emphasis on customer service.Our contact, Roger, is a former police officer, and when he talks about security needs and options, it really feels like a true consultation, not just a sales pitch.Can't recommend these guys enough.

Steve Immergluck

20:24 09 Feb 16

When Rodger came out to my house I instantly knew he was an expert in his field and I was in good hands. He recommended some outstanding services and from beginning to end our experience with Rodger and the ADS team was outstanding.

Paul Schifferer

16:12 05 Feb 16

We are a small business in Elgin, IL, and having great people help make your life and work easier is a wonderful thing. We just switched from another alarm company for our office to ADS, and it could not have been easier! Heather came out to our office for an estimate, and she was absolutely stellar, nice and great to work with. Our installation was very quick and clean. And we absolutely love having the Total Connect App on our phones - What a great and convenient tool. We even saved money on the deal.Bottom line: Great company to work with and we look forward to many years with you - Thank you all at ADS!

Rhonda Hagen

21:21 26 Jan 16

I was looking for a security system for my home. I wanted a local company, not a large global company. I did a lot of research and spoke to a few of my neighbors. I landed on Alarm Detection Systems. My neighbors raved about the company and how personal the service was. After having the system installed, I came to understand why my neighbors thought so highly of the company. Should I ever have the need to contact them, I always get a live person. Not an automated system that you get lost in! They have handled all of my questions with speed and efficiency. Kevin Carroll was our salesman. He answered ALL of my questions and was very thorough. This is how I expect a company and customer service to be! Thank you ADS for making us feel secure in our home and being there for us ALWAYS!!!!!

Salon625 Naperville

21:17 20 Jan 16

I switched to Alarm Detection and couldn’t be happier. The first person I met was Janita Schmitz. She is so full of energy and so passionate about her industry and Alarm Detection. She was very thorough about the process. She assured me I would always speak to a live person when I called (unlike my previous security company) and she was so right! The hook up was quick and easy.In today’s world there is nothing more refreshing then having a question, calling the company, and immediately speaking to a “real person”.The staff at Alarm Detection are all excellent! From start to finish everyone is so professional, friendly, and courteous. Thank you, Janita and Alarm Detection, for protecting my business and my home.

Hilary Stauber

20:04 19 Jan 16

We met with Heather Walkowiak of Alarm Detection Systems for our home. She showed up on time in fact she was 10 minutes early. She was extremely patient with us and did not push product or services we did not need. The installation was quick and the installer was very professional, and polite. He explained and showed me how to use the security system. He cleaned up after he was finished. I would highly recommend ADS and Heather Walkowiak. Thank You Again Heather for all your help! Stauber Family

Brittany Carroll

22:50 18 Jan 16

Alarm Detection Systems put a system in my family’s home today, the technicians worked clean and were very courteous. They went out of their way to work quietly while my young children napped. The experience from the sales consultation to the install was excellent.

judd nilles

03:52 19 Nov 15

Christina M

02:14 20 Mar 13

I had there service at my business. when one night someone broke into my store the alarm did not go off and i lost lost of merchandises. I asked for the explainatation from the company, vice president Robert alias bob came to my store and said even if the alarm would had gone off made no difference or stopped robber from stealing and laughed... and told me to tell my lawyer to call him. I was very disappointed and was surprised by his attitude and laugh. The cop were the one who found the business broken into instead of alarm system.

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Facebook Rating

4.6

Based on 58 reviews

Alarm Detection Systems

4.6

Charlie Melnash

18:17 15 Oct 19

We have been satisfied customers for many years. Their responsiveness and professionalism is as good as anyone could expect. Very happy with them on all accounts.

Karyn Domzalski

14:24 31 Aug 19

Incompetent. We had a mandatory inspection in May. I know where my alarms are and had to direct them to each of them. We made sure they tested all the correct alarms before they left and I was still given a notice saying I had to be present during my holiday weekend to be here for them to get what they missed. Please train your employees correctly so this doesn’t have to happen again.

Phyllis Young

22:16 27 Aug 19

Bridget Donelson

18:31 30 May 19

The installation techs went above and beyond what was required or expected. They spent a lot of time here and made sure I was 100% comfortable before leaving. Great job!!

Steve Kezios

00:52 17 May 19

ADS is focused not just on protecting your stuff but they also care about service. That's not easy to find any more. I most definitely recommend ADS and I don't recommend many services at all.

Mark Grimes

14:53 18 Apr 19

Suggestion what could get better….Try some Customer Service. We have been a customer for over ten years, and I think ADS has become complacent. Left two messages and no one called me back. After calling multiple times finally reach someone. I got the sense I was interrupting her day. My overall experience was not good on a scale of 1 to 10 they score a “2”. I could go on and on but will stop here. if anyone wants my opinion please reach out. I’m pretty sure ADS is not the only fire monitoring and inspection company in Naperville.

Kimberly Belle

20:39 29 Mar 19

Excellent customer service; warm, responsive and immediate. That's the most anyone could hope for!

Josette Belvedere

16:26 26 Mar 19

Prompt, reasonably priced, friendly & courteous.

Scott Kane

14:51 26 Mar 19

They are always responsive, and their service people are great.

Joey Cashmore-Johnson

16:55 20 Feb 19

The ADS team was stellar. They made sure that everything worked perfect and that I had a full understanding of the new system they installed.

Linda Moore

20:55 06 Feb 19

Their technicians are professional and pleasant to deal with. They are the face for the company. It inspires confidence in the service.

Brian Cann

13:38 16 Jan 19

We have been with ADS for several years. Very good service from field technicians and staff support. I would recommend ADS to anyone looking for quality security monitoring.

Nick Waltowski

23:57 10 Jan 19

Great people and great services. If you need an alarm call these guys.

Joe Dunsey

21:19 03 Jan 19

Service response is quick and all technicians have been helpful and personable. Always get the job required done.

Maria Pasquinelli

19:18 02 Jan 19

I have been a customer of Alarm Detection for 13 years. My service tech is knowledgeable and comes in knowing the job and ready to get it done. I really appreciate that they respect my time. Well Done ADS!

Colin Campbell

16:08 11 Dec 18

Darrell Tielbur Sr.

23:28 21 Nov 18

Recently we lost our camara system due to power failures. I sent e-mails request both times. Tere quick response is greatly appreciated. They found the problem areas and made the appropriate repairs. I work Security at a Car Auction

Joel Kogen

15:38 30 Oct 18

I be a client with ads for a long time All their staff from sales to monitor And service have always done a Fantastic jobI am a contractor and developerAnd deal with a lot of alarm company

Klhg Master

18:24 18 Oct 18

If you are in the market for an alarm system (Home or Business) then look no further than these guys. Locally owned and operated, we could not be any happier since making the switch several months ago. These guys rock.

Anca Covaliu

04:42 15 Oct 18

Awesome people!!!! I strongly recommend

Gerald Palmer

14:10 02 Oct 18

Just completed annual inspection - thorough, professional, and punctual. No other alarm company has given me this level of service.

Michael Cushion

23:48 05 Sep 18

We are very happy with our ADS protection and their customer service. We recommend ADS to anyone looking to protect their home.

Joe Holman

16:45 28 Aug 18

Bob Nykaza

18:49 16 Jul 18

We are fire protection professionals that use ADS for our fire alarm monitoring. Becky Wright is our point person. She is knowledgeable, responds quickly and is always very pleasant to work with. We at Fredriksen Fire enjoy working with Becky and ADS. Highly recommended.

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03:08 10 Dec 15

The water bug alarm saved us from a messy septic backup in our Basement. Thanks Heather and John for being the best!

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23:33 01 Apr 15

I never thought a security company could be super high tech, and have direct customer care!!!! Truly one of a kind, nice job ADS!Your newest Fan!!!

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Sindy Christine Valderrama

05:32 10 Oct 13

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17:03 04 Aug 13

They're great! so ive been told!

Nancy Roberts

23:36 26 Jul 13

Kristin Werner

11:20 20 Jul 13

Andrea Glaudel Arendt

00:12 18 Jun 13

Marilyn Miller Von Behren

02:41 05 May 13

Chuck Speck

21:15 01 May 13

Norm Holtz

19:57 30 Apr 13

Jeff Smith

17:11 29 Apr 13

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Business Security Systems

From cameras to access, we do it better.

ADS is one of the largest security companies in the country. Therefore, we have the products, services, and expertise to provide security and peace of mind 24 hours a day/365 days a year. Keeping your business safe and secure involves several protective systems such as burglar alarms, business fire alarms, and video verification. We are a complete alarm security business in Chicago.

As the most experienced alarm company in the Chicago area, we are a one-stop provider of:

Commercial Security Alarms — From perimeter door protection to interior intrusion sensors, we help keep your business safe from criminals.
Security Cameras — First of all, we can provide temporary location video surveillance during construction. Secondly, we provide IP security cameras with digital video recorders or network video recorders.
Business Fire Alarms — We design, install and repair fire alarm equipment and also test and monitor it to ensure it’s working properly.
Card Access — We offer various card access business alarm monitoring 365 days a year.

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Home Security

Let’s talk about your home alarm.

If you’re looking for greater security and all-important peace of mind, you may be considering an alarm system installation in Chicago. At Alarm Detection Systems, Inc., we listen to you and determine what concerns you most. Then after evaluating your needs, we suggest the home security package that is the best fit for you.

Stay Protected Schedule your FREE Evaluation

Schedule Your FREE Evaluation

Considering a Chicago alarm system installation company? Start with us. We don’t sacrifice safety, and neither should you.

For the fastest response to your inquiry. Please use the instant chat function in the bottom right corner of this web page during regular business hours 8:00 a.m. to 5:00 p.m. or call 630.844.6300

Join our Team

Respect, Professionalism, and Integrity.

Employment at Alarm Detection Systems means being a part of a team of leaders in security systems. Join a group of exceptional people who share a common passion for providing the highest level of service to thousands of customers every day.

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