Burglar alarm store · Country Club Hills, IL · reviewed since 2017
iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 64%82+52.1Reliability 28%80+22.6Replies to reviews 8%72+5.9Experts Score= 81Not enough data for value; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.81SCORE
AGradeiLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#27 of 36 security guard servicesiPosition by Experts Score among all companies we track in this category. · better than 26%
4.7★★★★★37 Google reviews · 2 photos
89%five-star reviews
5.00★last 12 monthsiAverage stars on reviews from the last 12 months only.
0%1–2★ in 2 yearsiShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
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.
Score profile vs other security guard services
Score per factor (100 = best)iEach factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: momentum and satisfaction; weakest: replies to reviews.
On Guard IncSecurity Guard Services median0 = centre, 100 = best
SatisfactioniSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.On Guard Inc: 82/100 on this factor. Category median: 89.A
82
ReliabilityiReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.On Guard Inc: 80/100 on this factor. Category median: 89.A
80
Craft & serviceiCraft & service · penalty only, up to −10 pointsGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Not enough reviews for this factor yet. Category median: 100.–
–
ValueiValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Not enough reviews for this factor yet. Category median: 90.–
–
MomentumiMomentum · penalty only, up to −10 pointsPenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.On Guard Inc: 100/100 on this factor. Category median: 100.A
100
Replies to reviewsiReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.On Guard Inc: 72/100 on this factor. Category median: 79.B
72
Bar = this company · dark tick = category median.
Star ratings
37 Google reviews we collected
4.7of 5
5 stars3389%
4 stars13%
3 stars00%
2 stars25%
1 star13%
Praise vs complaints
Phrases our text analysis found in 28 written reviews
90%praise
Praise3890%
Complaints410%
Topic share
How often each topic comes up in the written reviews
7topics
Staff & attitude1433%
Speed & response921%
Quality & results819%
Price & value512%
Would recommend37%
Honesty & trust25%
Communication12%
What customers talk about
We read 28 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“We had a small camera issue and Jim was very helpful with getting this resolved in a timely manner.”
“When I called to discuss the matter with Joe he yelled at me and stated that "he is a Christian and would not ever engage in such behavior".”
“It was quick and easy and they did a great job in the installation.”
“Very accommodating with scheduling to install equipment and overall great service!”
“Tom and Jim are insightful, reasonable and skilled.”
“Would highly recommend if you appreciate people who know what they're doing!”
“Tom and Sara are always great to work with and coordinate with, they are exceptionally reliable, and very good people.”
“Everything was explained very well and happy with the app and security system.”
People customers mention
Jim3 reviews
Tom3 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Recent reviews
Michael2 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 4 months ago★★★★★
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…
AgustinLocal Guide · 25 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★
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.
MikeLocal Guide · 50 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★
Best in the area hands down. First class service. Tom, Jim, Joe, & Sarah are the best out there.
Michael5 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★
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.
Derek9 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★
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!
Gary2 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★
We had a small camera issue and Jim was very helpful with getting this resolved in a timely manner.
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.
Agustin EspinalLocal Guide · 25 reviewsiTotal number of Google reviews Agustin has written across all businesses on Google Maps, not just this one.
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.
Response from the owner · a year ago
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!
Mike DeanLocal Guide · 50 reviewsiTotal number of Google reviews Mike has written across all businesses on Google Maps, not just this one.
Best in the area hands down. First class service. Tom, Jim, Joe, & Sarah are the best out there.
Response from the owner · a year ago
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!
Michael Degnan5 reviewsiTotal number of Google reviews Michael has written across all businesses on Google Maps, not just this one.
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.
Response from the owner · a year ago
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!
Derek Ward9 reviewsiTotal number of Google reviews Derek has written across all businesses on Google Maps, not just this one.
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!
Response from the owner · a year ago
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!
Gary Vilcek2 reviewsiTotal number of Google reviews Gary has written across all businesses on Google Maps, not just this one.
We had a small camera issue and Jim was very helpful with getting this resolved in a timely manner.
Response from the owner · a year ago
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!
Christopher Evoy2 reviewsiTotal number of Google reviews Christopher has written across all businesses on Google Maps, not just this one.
Always professional and fair with their prices. I’ve had several systems installed by them and have never had an issue.
Response from the owner · a year ago
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.
R Mazzola7 reviewsiTotal number of Google reviews R has written across all businesses on Google Maps, not just this one.
BEST GUYS FOR YOUR HOME OR BUSINESS SECURITY SYSTEM
Response from the owner · a year ago
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!
Pete Amato1 reviewiTotal number of Google reviews Pete has written across all businesses on Google Maps, not just this one.
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!
Response from the owner · a year ago
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.
