We just took over an auto repair shop that was using On Guard and the owner gave them great reviews. We got set up with On Guard today and the whole process was easy and seamless. I called Corporate today to follow up with a question and the Owner actually took the call and answered my question. We are looking forward to a great relationship and being able feel comfortable that someone is keeping an eye on the security of our business.

On Guard Inc
On Guard Inc at a glance
Google reviewers rate On Guard Inc 4.7 out of 5 based on 37 reviews, with the owner responding to 73 percent of comments. Customers frequently praise the company for professional installations, responsive communication, and fair pricing, noting that staff members are knowledgeable and helpful. Positive feedback highlights the ease of setup and the quality of the security apps. However, a small number of negative reviews criticize the business for perceived deceptive practices and inadequate support for ongoing system issues.
- Google rating: 4.7 out of 5 from 37 reviews (89% five-star).
- Reviews on this page: 37 Google reviews (28 with written comments).
- Owner responses: the business replied to 73% of reviews.
- Most recent review: June 17, 2026.
- Service: Security Guard Company serving Country Club Hills, Illinois.
Data from Google, last updated October 25, 2026.
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Customer reviews
Reviews from Google, shown as published (original wording, unedited).
It was quick and easy and they did a great job in the installation. Everything was explained very well and happy with the app and security system.
Thank you so much for your kind words! We're thrilled to hear that the installation process was quick and easy and that everything was clearly explained. We're glad you're enjoying the app and feeling secure with your new system. If you ever have any questions or need assistance, we're always here to help!
Best in the area hands down. First class service. Tom, Jim, Joe, & Sarah are the best out there.
Thank you so much for the kind words! We’re thrilled to hear that you had a great experience with us. We truly appreciate your support and look forward to serving you again soon!
Great company, awesome team members, and by far the best customer service I have ever received from a company. I have been with On Guard for nearly 25 years. Recently added my summer home with security cameras, and alarms. There is no chance that I would be leaving On Guard.
Thank you so much for your kind words and for being such a loyal customer for nearly 25 years! We truly appreciate your continued trust in On Guard, and we're thrilled to hear that you've has a positive experience with our time and services. Thank you for your support!
Awesome, as always! Tom and Sara are always great to work with and coordinate with, they are exceptionally reliable, and very good people. I am thankful for OnGuard since 2019!
Thank you for your loyalty since 2019! We truly appreciate your kind words and look forward to serving you for years to come. Your support means the world to us!
We had a small camera issue and Jim was very helpful with getting this resolved in a timely manner.
Thank you for sharing your experience! We're glad Jim was able to assist and resolve the camera issue quickly. We're always here to help whenever you need us!
Great people and outstanding expertise and service.
Thank you for the kind words! We're so glad to hear you're happy with our team and service. Your satisfaction is our top priority!
Always professional and fair with their prices. I’ve had several systems installed by them and have never had an issue.
Thank you for your continued trust and kind words! We're so glad to hear that you've had positive experiences with our installations over the years. We always aim to provide professional service at fair prices, and it means a lot to know we've earned your loyalty.
BEST GUYS FOR YOUR HOME OR BUSINESS SECURITY SYSTEM
Thank you for the great feedback! We're honored to be your go-to choice for home and business security. We're always here to provide top-notch service and peace of mind!
On Guard was the Perfect Choice for All My Security Need’s from the Office Staff to Tom the Installation Expert! Tom Answered All My Question’s before I even finished asking them Professional Installation of All My Camera’s and Wiring Tom is the Right Man for the Job!! Highly Recommend On Guard Security!
Thank you so much for the amazing review! We're delighted to hear that you had a great experience with our team, especially Tom. We take pride in providing professional service from start to finish, and it's wonderful to know that we met your expectation.
Business details
- Address: 8036 Prairie Ct, Tinley Park, IL 60477
- Phone: (708) 429-2307
- Website: onguardinc.com
- Service area: Country Club Hills, IL