Home automation company · Tustin, CA · reviewed since 2018
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 55%88+48Reliability 24%82+19.9Value 14%100+14.1Replies to reviews 7%24+1.7Craft & service penalty52−4.8Experts Score= 79Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.79SCORE
BGradeiLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#35 of 44 security system installersiPosition by Experts Score among all companies we track in this category. · better than 21%
4.8★★★★★219 Google reviews · 24 photos
94%five-star reviews
4.96★last 12 monthsiAverage stars on reviews from the last 12 months only.
0.5%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.
Reviewers praise Smart Systems Technologies for efficient installations of security, smart home, and AV systems, noting that technicians are punctual, knowledgeable, and patient when explaining equipment. However, several low-star reviews criticize the company for unresponsiveness to support requests and difficulty canceling services. Customers also express concern over high monthly costs and mandatory three-year contracts, contrasting these terms with more flexible competitor offers.
Google rating: 4.8 out of 5 from 219 reviews (94% five-star).
Reviews on this page: 219 Google reviews (196 with written comments, 7 with photos).
Owner responses: the business replied to 86% of reviews.
Most recent review: October 23, 2026.
Service: Security System Installer serving Tustin, California.
Data from Google, last updated October 28, 2026.
Score profile vs other security system installers
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: replies to reviews.
Smart Systems TechnologiesSecurity System Installers 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.Smart Systems Technologies: 88/100 on this factor. Category median: 92.A
88
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.Smart Systems Technologies: 82/100 on this factor. Category median: 92.A
82
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.Smart Systems Technologies: 52/100 on this factor. Category median: 98.C
52
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.Smart Systems Technologies: 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.Smart Systems Technologies: 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.Smart Systems Technologies: 24/100 on this factor. Category median: 45.D
24
Bar = this company · dark tick = category median.
Star ratings
219 Google reviews we collected
4.8of 5
5 stars20594%
4 stars10%
3 stars00%
2 stars00%
1 star136%
Praise vs complaints
Phrases our text analysis found in 196 written reviews
97%praise
Praise39297%
Complaints123%
PriceiGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Price verdicts customers left with their Google review
99%fair
Great price3747%
Reasonable3544%
Overpriced11%
Not sure68%
Topic share
How often each topic comes up in the written reviews
7topics
Staff & attitude12832%
Quality & results8220%
Speed & response7017%
Communication5213%
Would recommend4812%
Honesty & trust164%
Price & value82%
What customers talk about
We read 196 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“Morgan was especially helpful and kind with my 2 year old son who was disrupting his job.”
“His patience is amazing and great attention to detail.”
“The system didn't work after he left and the receiver became hot and would go into shut down.”
“Morgan showed up right on time, knew exactly what he was doing, and had all three locations upgraded and working in about two hours.”
“He explained clearly how the upgraded system works.”
“We highly recommend SST Alarm System to anyone looking for a security company that truly values its customers!”
“I seldom utilize the service, because the system is reliable.”
“3 yr contract is a scam when operating this way.”
“The whole process only took 3 hours, and now we have the state of the art system at an affordable price.”
People customers mention
John22 reviews
Bismark16 reviews
Daniel10 reviews
Tyler5 reviews
Danny5 reviews
Morgan4 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Reviews for your job
Customers hired Smart Systems Technologies for 2 kinds of job. Pick one to see what they paid and said.
DDonna2 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. · 5 days ago★★★★★
Excellent “white glove” service from Al. He checked all 5 of our smart home systems, helped identify the correct app to download, and made sure the apps were working correctly on our phones. His patience is amazing and great attention to detail. Thank you Al!
Service not listed
JJohn3 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★★★★★
Alfred Hernandez represents your company very well.
He did a stellar job , of installing and educating me on the system.
He deserves 6 stars !!!
Reasonable priceInstallation
JJake2 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 weeks ago★★★★★
SST came to my new home and hooked me up with all the latest technologies.
Morgan was especially helpful and kind with my 2 year old son who was disrupting his job. Thank you Morgan for all your work and patience with my son.
CChristian2 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 weeks ago★★★★★
SST provider John was wonderful. I really appreciated his patience and work ethic.
OverpricedInstallation
KKaren7 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 weeks ago★★★★★
Al is a superb technician He fixed my doorbell issue got me back on line
I spent 1 hour (3weeks ago)on phone with another tech with no luck
AL successfully fixed it all
Nothing like person to person
Thank you Al and SSI for employing Al
Happy SSI customer
Not sureService not listed
AArnel1 reviewiTotal 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 month ago★★★★★
John, the SST technician did an excellent job on the installation. He explained clearly how the upgraded system works.Great customer service.
Excellent “white glove” service from Al. He checked all 5 of our smart home systems, helped identify the correct app to download, and made sure the apps were working correctly on our phones. His patience is amazing and great attention to detail. Thank you Al!
Services: Service not listed
J
John Burdick3 reviewsiTotal number of Google reviews John has written across all businesses on Google Maps, not just this one.
SST came to my new home and hooked me up with all the latest technologies.
Morgan was especially helpful and kind with my 2 year old son who was disrupting his job. Thank you Morgan for all your work and patience with my son.
Response from the owner · 3 weeks ago
Thanks Jake! We're happy we could hook you up with all the lates tech, especially since we had the opportunity to meet and train a future SST Tech. along the way. We appreciate you choosing SST and wish you and you family the best in your new home.
C
Christian Dobrowsky2 reviewsiTotal number of Google reviews Christian has written across all businesses on Google Maps, not just this one.
Al is a superb technician He fixed my doorbell issue got me back on line
I spent 1 hour (3weeks ago)on phone with another tech with no luck
AL successfully fixed it all
Nothing like person to person
Thank you Al and SSI for employing Al
Happy SSI customer
Price assessment: Not sure
Services: Service not listed
Response from the owner · 3 weeks ago
Thank you Karen! Sometimes there is no substitute for hands on service. We're glad to get your doorbell back online and appreciate your continued trust in SST.
K
Kristyn Aalto4 reviewsiTotal number of Google reviews Kristyn has written across all businesses on Google Maps, not just this one.
Our alarm system is old and needs replacement. Alfred and John from Smart Systems Technologies came and replaced the whole system, including installation, re-wiring, and programming. The whole process only took 3 hours, and now we have the state of the art system at an affordable price. Both Alfred and John are wonderful and efficient.
Price assessment: Reasonable price
Services: Installation
Response from the owner · a month ago
Thank you for sharing your experience! We’re glad the system upgrade and installation went smoothly and that everything was completed in one visit. We appreciate you choosing SST for your home security.