Security system supplier · Sunset Hills, MO · reviewed since 2023
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 59%99+58.1Reliability 26%98+25.6Value 15%100+15.2Craft & service penalty99−0.1Experts Score= 99Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.99SCORE
AGradeiLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#3 of 34 cctv installation servicesiPosition by Experts Score among all companies we track in this category. · better than 94%
5.0★★★★★82 Google reviews · 24 photos
100%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 St Louis Alarm Co five stars based on eighty-two reviews, with the owner responding to ninety-eight percent of comments. Customers describe the company as responsive and professional, highlighting punctual installation of security cameras, alarm systems, and network equipment. Recurring themes include clear communication, fair pricing, and thorough walkthroughs that address specific property needs. Reviewers note that staff often go beyond initial scope to ensure systems function correctly, providing prompt quotes and reliable support for both residential and commercial clients.
Google rating: 5.0 out of 5 from 82 reviews (100% five-star).
Reviews on this page: 82 Google reviews (77 with written comments, 3 with photos).
Owner responses: the business replied to 98% of reviews.
Most recent review: October 31, 2026.
Service: CCTV Installation serving Sunset Hills, Missouri.
Data from Google, last updated November 1, 2026.
Score profile vs other cctv installation 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: value and momentum; weakest: reliability.
St Louis Alarm CoCctv Installation 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.St Louis Alarm Co: 99/100 on this factor. Category median: 90.A
99
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.St Louis Alarm Co: 98/100 on this factor. Category median: 87.A
98
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.St Louis Alarm Co: 99/100 on this factor. Category median: 98.A
99
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.St Louis Alarm Co: 100/100 on this factor. Category median: 100.A
100
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.St Louis Alarm Co: 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.Not enough reviews for this factor yet. Category median: 73.–
–
Bar = this company · dark tick = category median.
Star ratings
82 Google reviews we collected
5.0of 5
5 stars82100%
4 stars00%
3 stars00%
2 stars00%
1 star00%
Praise vs complaints
Phrases our text analysis found in 77 written reviews
100%praise
Praise183100%
Complaints00%
Topic share
How often each topic comes up in the written reviews
7topics
Would recommend3620%
Staff & attitude3419%
Quality & results3318%
Speed & response2514%
Communication2212%
Price & value179%
Honesty & trust169%
What customers talk about
We read 77 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“Highly recommend this company to any household or business!”
“Professional, knowledgeable, thorough, and an absolute pleasure to work with.”
“The install was top notch and the cameras performed great.”
“Received a quote promptly and answered all my questions.”
“They walked us through setting up detection zones, reviewing footage from our phones, and even viewing our cameras right on our home TV.”
“Joe is responsive, punctual, thorough, and truly stands behind his work—and his pricing was exceptionally fair for the quality delivered.”
“We now have reliable, 24/7 surveillance that gives us the peace of mind we've been missing.”
People customers mention
Joe21 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Reviews for your job
Customers hired St Louis Alarm Co for 2 kinds of job. Pick one to see what they paid and said.
JJames11 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 week ago★★★★★
If you need a professional to install a security cameras, do yourself a huge favor and call Joe at St. Louis Alarm.
Our experience with Joe was nothing short of what one should expect when hiring a real pro. He took my call, went out to my house to provide me with an estimate and then a week later, he came out and…
SShreeLocal Guide · 30 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. · 3 months ago★★★★★
Responsiveness owner! Came out to walk my property and listened to my concerns and needs. Received a quote promptly and answered all my questions. Installation team was amazing! Took pride in there work and treated my home with respect. (Cleaned up after themselves too!) 100% recommend!
RRod5 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. · 3 months ago★★★★★
St. Louis Alarm was very easy to work with. Always very responsive. Would definitely recommend.
UUmair8 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★★★★★
Joe was great to work with. Very professional, easy to work with, and thorough. He set up our whole house and took the time to make sure everything was working properly. Highly recommend him for any security needs!
LLeviLocal Guide · 24 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★★★★★
Best alarm and security company I’ve ever worked with! High quality service and communication. Helped setup alarm systems and security systems for my business. Highly recommend this company to any household or business!
BBriana4 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★★★★★
Working with STL Alarm Co. was a fantastic experience! The service was outstanding from start to finish. Joe and Blake made the setup and installation process incredibly easy, providing step-by-step guidance every step of the way. Their personalized customer service, attention to detail, and genuine care for their…
⭐⭐⭐⭐⭐ 5 Stars – Absolutely Outstanding Service!
I can't say enough great things about St. Louis Alarm Co.!
Our old camera system was outdated and constantly missing important activity, including people and vehicles pulling into our own driveway. That's not exactly reassuring when you're relying on it to help protect your home and family.
St. Louis Alarm Co. came in and completely changed that! We now have reliable, 24/7 surveillance that gives us the peace of mind we've been missing.
What really stood out was the time they took to make sure we understood EVERYTHING. They walked us through setting up detection zones, reviewing footage from our phones, and even viewing our cameras right on our home TV. They didn't just install a system and leave. They made sure we were comfortable and confident using it.
It's refreshing to work with a company that genuinely cares about doing the job right and making sure their customers are taken care of.
If you're considering upgrading your security cameras or installing a new system, I HIGHLY recommend St. Louis Alarm Co.! Professional, knowledgeable, thorough, and an absolute pleasure to work with. Couldn't be happier with the results!
Response from the owner · a day ago
Thank you, Mark! We're thrilled to know the new system has given you peace of mind. Helping you feel confident in using your setup is so important to us. We truly appreciate your kind words and recommendation!
J
James Johnson11 reviewsiTotal number of Google reviews James has written across all businesses on Google Maps, not just this one.
If you need a professional to install a security cameras, do yourself a huge favor and call Joe at St. Louis Alarm.
Our experience with Joe was nothing short of what one should expect when hiring a real pro. He took my call, went out to my house to provide me with an estimate and then a week later, he came out and installed a great CCT system for us. “The correct way”.
Joe took care of us and we’re very appreciative of his level of professionalism. The install was top notch and the cameras performed great.
Thanks Joe, my wife and I are looking forward to doing more with you and St. Louis Alarm in the near future.
Response from the owner · a week ago
Thank you, James! We're thrilled to hear about your great experience with Joe and how satisfied you are with the installation. Your kind words mean a lot, and we look forward to working with you again soon!
S
Shree ShermanLocal Guide · 30 reviewsiTotal number of Google reviews Shree has written across all businesses on Google Maps, not just this one.
Responsiveness owner! Came out to walk my property and listened to my concerns and needs. Received a quote promptly and answered all my questions. Installation team was amazing! Took pride in there work and treated my home with respect. (Cleaned up after themselves too!) 100% recommend!
Response from the owner · 3 months ago
Thank you, Shree! We're thrilled you had such a positive experience with our team. Your kind words about our service and installation mean a lot to us. We truly appreciate your recommendation!
S
Sheri O'Gorman1 reviewiTotal number of Google reviews Sheri has written across all businesses on Google Maps, not just this one.
The security system they installed for me is really helpful and great to have!
Response from the owner · 3 months ago
Thank you, Marin! We're thrilled to hear that the security system is helpful for you. If you ever need assistance or have questions, feel free to let us know!
U
Umair Bajwa8 reviewsiTotal number of Google reviews Umair has written across all businesses on Google Maps, not just this one.
Joe was great to work with. Very professional, easy to work with, and thorough. He set up our whole house and took the time to make sure everything was working properly. Highly recommend him for any security needs!
Response from the owner · 3 months ago
Thank you, Umair! We're thrilled to hear about your great experience with Joe. Your recommendation means a lot, and we're glad everything was set up perfectly. Let us know if you need anything else!
L
Levi AlldredgeLocal Guide · 24 reviewsiTotal number of Google reviews Levi has written across all businesses on Google Maps, not just this one.
Best alarm and security company I’ve ever worked with! High quality service and communication. Helped setup alarm systems and security systems for my business. Highly recommend this company to any household or business!
Response from the owner · 4 months ago
Thank you, Levi! We're thrilled to have supported your business with our alarm and security systems. Your recommendation means a lot, and we're always here to help if you need anything in the future!
B
Briana McKevitt4 reviewsiTotal number of Google reviews Briana has written across all businesses on Google Maps, not just this one.
Working with STL Alarm Co. was a fantastic experience! The service was outstanding from start to finish. Joe and Blake made the setup and installation process incredibly easy, providing step-by-step guidance every step of the way. Their personalized customer service, attention to detail, and genuine care for their customers truly set them apart. If I could give them 6 stars, I would! Thank you for making the entire experience seamless and stress-free.
Response from the owner · 4 months ago
Thank you, Briana! We're thrilled to hear Joe and Blake provided such a seamless and stress-free experience. Your kind words about their dedication and care mean so much to us. We appreciate your support!
K
Kathleen Holt4 reviewsiTotal number of Google reviews Kathleen has written across all businesses on Google Maps, not just this one.
Joe is knowledgeable, available, timely, and quick to help. He makes good recommendations and has a strong knowledge of all systems he works with. Good team.
Response from the owner · 5 months ago
Thank you, Kathleen! We're thrilled to hear about your positive experience with Joe and our team. Your kind words motivate us to keep delivering excellent service. We'll be sure to share your feedback with Joe!
