Analyzing 6,520,3756.5M ReviewsFor 18,08018.1K Experts

HM Security - ADT Authorized Dealer logo

HM Security - ADT Authorized Dealer

Security system installation service · Lakewood, CA · reviewed since 2020

How 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%98+53.5Reliability 24%97+23.5Value 14%100+14.1Replies to reviews 7%58+4.1Experts Score= 95Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.95SCORE
AGradeLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#14 of 44 security system installersPosition by Experts Score among all companies we track in this category. · better than 70%
5.0 ★★★★★ 918 Google reviews · 84 photos
99%five-star reviews
5.00★last 12 monthsAverage stars on reviews from the last 12 months only.
0.5%1–2★ in 2 yearsShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
92%reviews answered by the owner
Oct 2026latest review
📞 Call (800) 377-4082Request a call backWebsite ↗

HM Security - ADT Authorized Dealer at a glance

Customers frequently cite professional installation, thorough explanations of equipment, and affordable pricing when reviewing the security and camera services. Many highlight quick scheduling and helpful staff who ensure customers understand system operations. However, some low-star reviews describe technicians arriving late, failing to resolve issues, and charging for incomplete work, alongside complaints about contract extensions without clear notification.

  • Google rating: 5.0 out of 5 from 918 reviews (99% five-star).
  • Reviews on this page: 917 Google reviews (744 with written comments, 52 with photos).
  • Owner responses: the business replied to 92% of reviews.
  • Most recent review: October 23, 2026.
  • Service: Security System Installer serving Lakewood, California.

Data from Google, last updated October 25, 2026.

Score profile vs other security system installers

Score per factor (100 = best)Each 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.

Satisfaction98Reliability97Craft & service–Value100Momentum100Replies to reviews58Satisfaction: 98 (median 92)Reliability: 97 (median 92)Value: 100 (median 100)Momentum: 100 (median 100)Replies to reviews: 58 (median 45)
This companySecurity System Installers median0 = centre, 100 = best
SatisfactionSatisfaction · 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.HM Security - ADT Authorized Dealer: 98/100 on this factor. Category median: 92.A
98
ReliabilityReliability · 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.HM Security - ADT Authorized Dealer: 97/100 on this factor. Category median: 92.A
97
Craft & serviceCraft & 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: 98.–
–
ValueValue · 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.HM Security - ADT Authorized Dealer: 100/100 on this factor. Category median: 100.A
100
MomentumMomentum · 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.HM Security - ADT Authorized Dealer: 100/100 on this factor. Category median: 100.A
100
Replies to reviewsReplies 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.HM Security - ADT Authorized Dealer: 58/100 on this factor. Category median: 45.C
58

Bar = this company · dark tick = category median.

Star ratings

917 Google reviews we collected

  • 5 stars91299%
  • 4 stars10%
  • 3 stars00%
  • 2 stars00%
  • 1 star40%

Praise vs complaints

Phrases our text analysis found in 744 written reviews

  • Praise1,152100%
  • Complaints50%

PriceGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.

Price verdicts customers left with their Google review

  • Great price4575%
  • Reasonable1423%
  • Overpriced00%
  • Not sure12%

Topic share

How often each topic comes up in the written reviews

  • Staff & attitude27524%
  • Quality & results24121%
  • Would recommend21519%
  • Speed & response18416%
  • Communication11410%
  • Price & value1029%
  • Honesty & trust262%

What customers talk about

We read 744 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.

  • “And easy set ups very friendly would recommend to everyone !”
  • “Louis gave me exceptional service, was very thorough on the set up and the account process.”
    “Horrible service.”
  • “I am going to highly recommend him and the ADT services to my family and friends.”
  • “The team that came over did everything super fast under two hours.”
  • “He explained everything in detail and was patient with us.”
  • “Everything was more than reasonable, from the pricing to the level of customer service provided.”
  • “They know how to take care their customers they get the done the right way, very honest and informative.”

People customers mention

  • Rey 58 reviews
  • Ray 34 reviews
  • Tony 30 reviews
  • Jose 20 reviews
  • Julian 16 reviews
  • Louis 12 reviews

praise complaint · found by our text analysis, Google review wording unchanged.

Reviews for your job

Customers hired HM Security - ADT Authorized Dealer for 2 kinds of job. Pick one to see what they paid and said.

Recent reviews

Parminder4 reviewsTotal 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 day ago★★★★★

Great experience with HM Security. Louis did an amazing job helping secure my business. Everything went smoothly and the service was excellent. Highly recommend!

Customer photo from Parminder's review
Great priceInstallationSecurity cameras
VeronicaLocal Guide · 24 reviewsTotal 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. · 2 days ago★★★★★

Excellent service ! And easy set ups very friendly would recommend to everyone !

Customer photo from Veronica's review
Ellen3 reviewsTotal 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. · 2 days ago★★★★★

ADT rep Reynaldo is superb !!! EXCELLENT SERVICe!!!! QUICK ANS EASY TRANSITION !!!! VERY INFORMATIVE ANd and great personality !

A2 reviewsTotal 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. · Edited a week ago★★★★★

Julian our installer was very helpful and knowledgeable. He explained everything in detail and was patient with us. Very professional! Highly recommend!

Aviance5 reviewsTotal 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★★★★★

Louis gave me exceptional service, was very thorough on the set up and the account process. Not to mention, very patient! I am going to highly recommend him and the ADT services to my family and friends.

Customer photo from Aviance's review
Jennifer2 reviewsTotal 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★★★★★

Excellent service, very professional and great customer service. The team that came over did everything super fast under two hours. I would highly recommend them!

Great priceInstallationSecurity cameras

Jobs customers hired them for

JobReviewsCategory typical
Installation64—
Security cameras38—

Compare with

Photos

Customer reviews

5.0 ★★★★★ 918 reviews on Google · rating breakdown

Reviews from Google, shown as published (original wording, unedited).

Jobs customers hired them for — from Google's service tags and the review text
Team members customers mention
Filter by topic — each topic is highlighted in the reviews in the same color
Parminder Singh4 reviewsTotal number of Google reviews Parminder has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Great experience with HM Security. Louis did an amazing job helping secure my business. Everything went smoothly and the service was excellent. Highly recommend!

  • Price assessment: Great price
  • Services: Installation, Security cameras
Veronica YazminLocal Guide · 24 reviewsTotal number of Google reviews Veronica has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Excellent service ! And easy set ups very friendly would recommend to everyone !

Ellen Tran3 reviewsTotal number of Google reviews Ellen has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

ADT rep Reynaldo is superb !!! EXCELLENT SERVICe!!!! QUICK ANS EASY TRANSITION !!!! VERY INFORMATIVE ANd and great personality !

Mia Alvarez1 reviewTotal number of Google reviews Mia has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Rey me dio muy buena oferta para proteger mi negocio. Gracias!

Lucila TLocal Guide · 42 reviewsTotal number of Google reviews Lucila has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Great service. Prompt and professional. We would highly recommend.

  • Services: Installation, Security cameras
Jose Linares2 reviewsTotal number of Google reviews Jose has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Excellent service. Louis was efficient and professional. Highly recommended.

A Ram2 reviewsTotal number of Google reviews A has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Julian our installer was very helpful and knowledgeable. He explained everything in detail and was patient with us. Very professional! Highly recommend!

Response from the owner · 2 years ago

Thank you for your kind words about Julian! We appreciate your recommendation and are glad to hear about your positive experience with him.

Aviance Garcia5 reviewsTotal number of Google reviews Aviance has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Louis gave me exceptional service, was very thorough on the set up and the account process. Not to mention, very patient! I am going to highly recommend him and the ADT services to my family and friends.

Veronica Galvez3 reviewsTotal number of Google reviews Veronica has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Rey me ayudo a proteger mi negocio, buen precio. Lo recomiendo!

Rolando Sanchez Pacheco1 reviewTotal number of Google reviews Rolando has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Rey is the best in the business. Helped us out so much. Recommend to everyone!

HM Security - ADT Authorized Dealer on Google Maps →

Business details