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5 Best Home Security Systems in Denver (2026)

Ranked by real Google ratings and review volume · How we chose

Brad Smith
By Brad Smith, Home Services Expert · ✓ Updated · 7 min read

We compared 19 home security systems in Denver on Google Maps · 5 listed · How we rank

Home security systems in Denver range from a national smart-home brand to a long-running local alarm company, a camera specialist and a fire-and-security firm. The businesses below hold more than 3,400 Google reviews between them, with Vivint alone holding more than 1,300, and ratings sit between 4.7 and 4.9. Star averages are close, so what you want protected, and how, decides the call.

Short answer: Vivint is the top pick at 4.9 stars from more than 1,300 Google reviews, followed by Security Central Inc. at 4.9 on more than 840 and Security Surveillance System at 4.9 on more than 460. Cost depends on equipment, cameras and the monitoring contract, so ask for itemized pricing and contract terms before signing.
Jump to a business

Denver Security Companies, Compared

# Business Rating Reviews Best for
1 Vivint 4.9 ★ 1,311 Smart-home security brand View ›
2 Security Central Inc. 4.9 ★ 847 Long-term alarm and monitoring View ›
3 Security Surveillance System 4.9 ★ 463 Camera systems View ›
4 Colorado Security Company 4.8 ★ 443 Alarms, cameras and smart home View ›
5 Pye-Barker Fire & Safety, formerly Mountain Alarm 4.7 ★ 416 Fire and security combined View ›
5 Best Home Security Systems in Denver (2026)

Alarm, camera and monitoring companies, reviewed

Vivint logo
#1 Overall🕑 Open 7 days

Vivint

4.91,311 Google reviews

Vivint is the Denver location of a national smart-home and security brand, on Colorado Boulevard. Google lists it as a security system supplier, a home automation company and a security system installation service. Reviewers describe sales reps who demo the Vivint alarm system and its app, installers who test everything before leaving and a process that felt unhurried.

What people praise

  • Reps who explain the system and the app without pushing, according to several reviewers
  • Installers who tested the equipment and made sure the customer understood how it works
  • A walkthrough of the app's features, per one reviewer
  • Reviewers describe the process as easy to follow
Reputation scorecardrank in Denver
Rating4.9 / 5
Review volume1,311 · 97th
Confidencevery high
Recency3 months ago
Info completenesssite · phone · hours
Rating breakdown98% 5-star
✓ VerifiedSource: Google

Our take: By far the largest review base here at 4.9, with feedback focused on the sales and installation visit. As a national brand, ask for the monitoring and contract terms in writing.

1685 Colorado Blvd Ste. 1699M, Denver, CO 80222

Security Central Inc. logo
#2🕑 Open 6 days/wk↩ Responds to reviews

Security Central Inc.

4.9847 Google reviews

Security Central Inc. is an Englewood alarm company on Inverness Drive East. Google lists it as a security system supplier, burglar alarm store, fire alarm supplier and installation service. Reviewers describe long customer relationships, including two who have used it for 25 and 35 years, along with installs, repairs and an upgrade to add cell phone control to an existing alarm.

What people praise

  • Customers of 25 years and 35 years praise the techs and the staff who answer the phones
  • One reviewer said the company got them installed more than a month before the scheduled date
  • A straightforward, inexpensive plan for cell phone control of an existing alarm, while other companies quoted much more, per one reviewer
  • A technician named Gerald singled out by two reviewers for knowledge and kindness
Reputation scorecardrank in Denver
Rating4.9 / 5
Review volume847 · 92nd
Confidencevery high
Recency2 months ago
Info completenesssite · phone · hours
Rating breakdown95% 5-star
✓ VerifiedSource: Google

Our take: A 4.9 backed by many longtime customers. Strong choice if you want a local alarm company to install, repair and monitor.

67 Inverness Dr E Unit b, Englewood, CO 80112

Security Surveillance System logo
#3🕑 Open 5 days/wk↩ Responds to reviews

Security Surveillance System

4.9463 Google reviews

Security Surveillance System is an Aurora company on East Bethany Drive, listed by Google as a security system supplier. Reviewers describe surveillance camera purchases and installs, remote-viewing support after setup and a customer looking to add another camera later.

What people praise

  • Technicians who explain the work, arrive on time and think through obstacles ahead of the install, per reviewers
  • Follow-up help with remote viewing, from a technician who came out quickly
  • A customer who bought a surveillance system and plans to add another camera
  • A technician who arrived early and found the problem quickly, said one reviewer

Worth knowing

  • One reviewer needed a follow-up visit to get remote viewing working after the install
Reputation scorecardrank in Denver
Rating4.9 / 5
Review volume463 · 87th
Confidencehigh
Recency4 months ago
Info completenesssite · phone · hours
Rating breakdown97% 5-star
✓ VerifiedSource: Google

Our take: Rated 4.9 on camera and surveillance work. Choose it when cameras are the priority, and ask separately about alarm monitoring.

10630 E Bethany Dr a, Aurora, CO 80014

Colorado Security Company logo
#4🕑 Open 5 days/wk

Colorado Security Company

4.8443 Google reviews

Colorado Security Company is a Denver company on South Downing Street. Its site lists burglar alarm and security camera systems for homes and businesses, smart home controls for garage doors, locks, lighting and thermostats, and video cameras with remote access, and says it has served the community for 10 years. Reviewers describe full installs built around the Alarm.com app.

What people praise

  • A custom proposal from a rep who visited the house, said one reviewer
  • One customer added a water shutoff valve and leak sensors and tied thermostats into the app
  • Installers who kept camera wiring low-profile and demonstrated the Alarm.com app, according to one reviewer
  • A quote process described as easy by a camera customer

Worth knowing

  • One reviewer took off a star because they wished the crew had cleaned up more after the install
Reputation scorecardrank in Denver
Rating4.8 / 5
Review volume443 · 82nd
Confidencehigh
Recency3 months ago
Info completenesssite · phone · hours
Rating breakdown95% 5-star
✓ VerifiedSource: Google

Our take: A 4.8 with detailed reviews of alarm, camera and smart-home installs. A good fit for bundling several systems under one app.

2401 S Downing St, Denver, CO 80210

Pye-Barker Fire & Safety, formerly Mountain Alarm logo
#5🕑 Open 5 days/wk↩ Responds to reviews

Pye-Barker Fire & Safety, formerly Mountain Alarm

4.7416 Google reviews

Pye-Barker Fire & Safety, formerly Mountain Alarm is a national fire and life-safety company; this Lakewood branch took over the Mountain Alarm business. Its site describes fire alarms, sprinklers, access control, video surveillance, intrusion detection and 24-hour monitoring, mainly for commercial facilities, and Google also lists it as a burglar alarm store and home automation company. Reviewers include long-time Mountain Alarm customers.

What people praise

  • One reviewer was billed after switching providers, and the company refunded the payments promptly and courteously once flagged
  • Another reviewer said a small settings problem was fixed immediately
  • Combines fire protection with alarm and security service, per its site

Worth knowing

  • Reviews are mixed, with a number of reviewers describing frustration with service follow-up and contract terms, so read the contract before signing
  • Its site focuses on commercial buildings, so confirm that it handles your home system
Reputation scorecardrank in Denver
Rating4.7 / 5
Review volume416 · 76th
Confidencehigh
Recency4 months ago
Info completenesssite · phone · hours
Rating breakdown87% 5-star
✓ VerifiedSource: Google

Our take: Rated 4.7, the lowest average on this page. Best when fire and security needs go together, and worth asking about contract length and monitoring terms.

7276 W Mansfield Ave, Lakewood, CO 80235

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How the scorecards read

Every number on this page comes from public Google data on the date shown. Rating is the live Google star average. Review volume is how many customers have rated the business, compared with other Denver security companies. Confidence weighs the rating by that volume, so a 4.9 on over a thousand reviews carries more weight than a 4.9 on a handful. Recency reflects how recently customers still review. No business can edit these figures.

What drives home security cost in Denver (2026)

Security pricing depends on the number of doors, windows and cameras, whether equipment is bought outright or tied to a contract, and the monthly fee for monitoring. Smart-home add-ons such as thermostats or water sensors also change the total, so ask each company for equipment and monitoring costs separately and for the contract length in writing.

Home security across the Denver metro

These businesses are based in Denver, Englewood, Aurora and Lakewood. Colorado Security Company’s site describes alarm and camera systems for homes and businesses, and Pye-Barker’s Lakewood page covers Lakewood, Denver and the Front Range. Searching for home security systems near me? Each listing shows a direct phone number and map link.

Questions to ask a security company

  • Is monitoring done locally or by a third-party center, and what does it cost per month?
  • How long is the contract, and what happens if I move or switch providers?
  • Does the quote cover cameras as well as door and window sensors?
  • Can I control the system from my phone, and will you show me how the app works?
  • Who owns the control panel and the codes if I cancel?

Frequently asked questions

Which Denver security companies here install cameras?

Security Surveillance System is built around cameras and surveillance installs, and its reviewers describe camera setups and remote-viewing support. Colorado Security Company’s site lists video cameras with remote access, and a reviewer there had cameras installed with low-profile wiring. Pye-Barker’s site lists video surveillance, but mainly for commercial facilities.

Can I add phone control to an alarm I already have?

A Security Central reviewer asked several companies about adding cell phone control to an existing alarm and said others quoted much more while Security Central came up with a straightforward, inexpensive plan. Another Security Central reviewer got help integrating a client’s alarm with a home automation platform. Ask any company whether your panel can be upgraded or must be replaced.

Which of these companies offers smart-home extras like thermostats or water sensors?

Colorado Security Company’s site lists smart home controls for locks, lighting, garage doors and thermostats, and one reviewer added a water shutoff valve and leak sensors and tied their thermostats into the app. Vivint is listed by Google as a home automation company.

Will the installer show me how to use the system?

Reviewers at Vivint describe reps walking through the system and the app, and a Colorado Security Company reviewer said the crew demonstrated the Alarm.com app. A Security Surveillance System customer needed a follow-up visit to get remote viewing working, so ask to see the app working before the crew leaves.

The takeaway

Vivint is the safe default for a smart-home security system from a national brand. Security Central suits homeowners who want a local alarm company, Security Surveillance System is the camera pick, and Colorado Security Company fits a bundled alarm, camera and smart-home install. Whichever you pick, get equipment, monitoring and contract length in writing.

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