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TRUSTED BY THORNTON, CO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon91
    Verified home security system services reviews

Top-Rated Home security system pros in Thornton - Updated Nov 2026

Avatar for ADT
ADT
4.5(
891
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallAlarm or Security System - Repair+5 more

Serving Thornton, CO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"I used to work in the security industry. Once I got married and had kids I definitely wanted a home security system. Bought ADT about a month ago and it’s worked out excellent. No glitches or issues and everyone was awesome in the buying and activation process."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

35 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Vantage Security System Installation, LLC
Vantage Security System Installation, LLC
5.0(
9
)
Surveillance Cameras - Install or Repair

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"From consult to install Jack and Eric were extremely friendly and helpful. They asked questions to make sure that the products chosen made sense for my home and situation. After install, they walked through each piece of equipment and explained how to use them with the phone aps and in practice (arming/disarming security system, setting up codes and new users etc.) and made sure I was comfortable with all the things (cameras, security control box and so on). Would absolutely recommend and will use again in the future if I move or decide to change/upgrade."
Project pictures
Project pictures
Project pictures
Project pictures
Project pictures

+2

Response time6 hrs
Response rate91%
Avatar for Allen, Morgan & Shields, LLC
Allen, Morgan & Shields, LLC
4.8(
36
)
Surveillance Cameras - Install or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"I would strongly recommend Allen, Morgan, and Shields LLC for any type of security camera project you might have. Mr. Faisal did a great job quoting me the exact system we needed following our specifications. His technician did an incredible job and finished our project within 2 days. Very great quality, communication, and service."
Response time1 day
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Digital Concepts
Digital Concepts
4.8(
118
)
Surveillance Cameras - Install or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2010

Free estimates

Customers say: Quick response

"We recently needed to upgrade our home s WiFi coverage to get us the bandwidth necessary for multiple home security cameras. Anthony came out to my home, free of charge, to assess our situation and give us a quote. The proposed solution and the quote were both great. What s more, Anthony was super patient with me as I asked lots of neurotic follow-up questions by email. On the day of the project, he came with a partner, calling about 45 minutes ahead to let us know his ETA. He and his partner were both courteous and respectful, and they both wore masks without me having to ask (this work took place in the age of COVID-19). Partway through the project, I threw in some last minute thoughts about a new TV antenna and Anthony graciously agreed to do that work the same day, for a very fair price. At the end of the project we realized that part of the WiFi system did not quite meet my initial expectations for specifications. Not a deal breaker, but also not what we were expecting. Anthony acknowledged the discrepancy and provided a fair discount to make up for it. The job he did was completed safely, and they made it look very clean in the end. When you re poking holes in walls, you always want to make sure it looks professional when all is said and done. Anthony nailed it. I m very happy with the service I received and I would work with Digital Concepts again in the future, should such needs arise."
TV Mount
Denver Metro Area
Security Cameras
ClearSream 4
Response time12 hrs
6 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for System Communications
System Communications
4.8(
25
)
Surveillance Cameras - Install or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 1989

Free estimates

Credit card accepted

"I had a connectivity issue with our security cameras. The owner Steve was very accommodating with getting it done quickly. Had a minor issue after the fact and he promptly is coming back to correct it no charge. I will use them again and I recommend them for others to use. Jay"
Response time3 hrs
Response rate86%
5 neighbors recently requested a quote
Avatar for EHA Network Services
EHA Network Services
5.0(
15
)
Surveillance Cameras - Install or RepairSurveillance Cameras - Install or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

Evolving Home Automation is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Church Face Lift
Church Face Lift
Church Face Lift
TV Install
TV Install

+6

7 neighbors recently requested a quote
Recommended by50%of homeowners
First Class Security Systems
4.0(
6
)
Alarm or Security System - RepairAlarm or Security System - InstallAlarm or Security System - Install - For Business+4 more

Serving Thornton, CO and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"This company was about twice the cost as another system and couldn't provide a camera or other cost-effective alternative solution to the area I needed to most monitor."
Response time1 day
Response rate100%
1 neighbors recently requested a quote
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Home Security Systems FAQs, answered by experts

Your best bet is to install a bracket that secures to the bottom of the unit and the side of your house. You should still secure the AC unit in the open window using some of the other methods already listed, but a bracket is best to ensure that it stays put—both during operation and in case of an attempted theft.

Grounding is a great first step to prevent electrical shock, but you can take it further with GFCI outlets and AFCIs (arc fault circuit interrupters). In particular, AFCIs help protect against the type of electrical arcs that cause fires, like if a mouse chews on a wire or your laptop starts overheating at the wall. These are required in some areas of your home.

There are a number of ways to secure windows. You can add motion detectors or window sensors to detect movement and impact or change the window locks to make them stronger. Some of the ways you can secure windows are much like how you secure a home: closing the curtains at night and setting up security cameras outside so you can monitor your property even in your absence. 

If you want to make more home security upgrades to your perimeter, consider installing a smart automatic gate opener and a security camera. These will allow you to see who’s at the gate and open it for them (or not). You can learn how to install an automatic gate opener yourself or hire a professional for a little extra.

When deciding whether a home automation system is right for you, consider the advantages and disadvantages first.

Pros

  • Home automation can help make your home more energy efficient, possibly lowering utility bills.

  • A wide range of automated solutions is available to meet your needs.

  • Centralized and remote control of different home automation systems.

Cons

  • Home automation can be costly.

  • Not all automated systems are compatible with each other.

  • Over-dependence on home automation can be problematic if systems cannot connect to the cloud.

The Thornton, CO homeowners’ guide to home security system services

From average costs to expert advice, get all the answers you need to get your job done.