10 Things to Know About ADT Home Security

Kalicia Bateman

Last Updated: May 23rd, 2024

If you’re in the market for a new home security system, you’ve probably heard about ADT. 

With over 145 years in the home security industry, ADT has become a well-established home security provider, known for its comprehensive and customizable security solutions. The company offers a range of services including burglar alarms, fire alarms, video surveillance, and smart home automation. And key features of ADT's home security systems include advanced equipment such as motion detectors, door/window sensors, security cameras, and smart home devices that can be controlled via a mobile app.

While ADT does offer popular and high-performing home security options, you’ll want to make sure that it’s the best choice for you. To help you out, we’ve compiled a list of ten things you need to know about ADT.

1. ADT has been in business for over 145 years

ADT was founded in 1874, making it one of the oldest and most established home security providers in the industry. While a company’s time in business isn’t necessarily an indicator of product and/or service quality, it can provide peace of mind to know that your home security provider has years of experience in the industry.

2. How ADT home security systems work

ADT's home security systems work through a combination of hardware, software, and professional monitoring to protect your home from various threats. Here's a breakdown of how these systems typically function:

Hardware components

ADT provides a variety of home security products that include some of the following:

  • Sensors
  • Cameras
  • Alarms
  • Control panels

All ADT hardware makes up your home security system (combined with ADT’s software and professional monitoring) and is connected to your main control panel. Through the control panel you can arm or disarm your home security system and communicate with ADT monitoring centers.


ADT has three mobile apps that allow users to remotely control their security system from a smartphone or computer. It’s important to note that each app is compatible with different generations of ADT devices — in most cases, ADT Control® or ADT+ will be the apps you will use, especially if you’re buying a new ADT security system. Each app allows you to remotely arm/disarm your home security system, receive real-time alerts, access live video monitoring, and more.

ADT offers the following mobile apps:

  • ADT Control® — designed to work with ADT’s more recent security systems, particularly those using the ADT Command panel
  • ADT Pulse® — designed to work with ADT’s earlier security systems
  • ADT+ — designed to integrate your ADT security with your Google Nest devices

In addition to ADT’s mobile app software, you can integrate your ADT system with your smart home devices, including smart locks, lights, and thermostats, enabling automated home management.

Professional monitoring

ADT provides round-the-clock monitoring through its network of monitoring centers. When a sensor is triggered on one of your security devices, your system sends a signal to an ADT monitoring center. Upon receiving an alert, ADT's monitoring professionals will assess the situation and contact you. If necessary, monitoring professionals will also dispatch emergency services (police, fire department, or medical services).

3. The average cost of an ADT system

The cost of your ADT system will depend on the package and monitoring plan you choose. ADT offers two security system packages and a build-your-own package option. 

Prices for packages typically range from approximately $390 to $750 — this price range is the upfront cost of your system devices. In addition to this upfront cost, you are required to pay for a pro monitoring plan of $24.99 per month (if you install your ADT system yourself, you’re required to pay for a one month minimum for monitoring; if your ADT system is professionally installed by the company, you’re required to sign a 36-month contract for monitoring).

It’s important to note that ADT frequently has sales or offers special discounts on its products, packages, and monitoring services. Thus, the average costs outlined above are subject to change throughout the year.

4. ADT monitoring contracts

ADT contracts typically last for 36 months (3 years). However, the length of the contract can vary depending on the specific package and promotions available at the time of signing. In some cases, particularly for customers in California, ADT may offer 24-month (2-year) contracts.

It’s important to note that if you terminate your contract before the end of the term, you may be required to pay an early termination fee, which is usually a percentage of the remaining balance of your contract.

5. ADT products and packages

ADT offers a variety of products that are available to purchase individually or in a package. It’s worth noting that all ADT devices are wireless (some Google Nest devices are wired). 

ADT offers the following home security products:

  • ADT Door/Window Sensor
  • ADT Motion Detector
  • ADT Keypad
  • ADT Keychain Remote
  • ADT Smoke Detector
  • ADT Water & Temperature Sensor
  • ADT Door/Window Sensor Spacer

Every ADT system starts with one ADT Smart Home Hub, one ADT Window/Door Sensor and access to the ADT + app. 

ADT’s devices are also available to purchase in packages, providing you with the basic home security devices for your home, 24/7 professional monitoring, and more. Packages vary based on whether you’re installing your system yourself or if you’re having ADT install your system professionally.

6. ADT includes Google Nest products

In October 2020, ADT started offering Google Nest products as part of its home security systems. This collaboration between ADT and Google is intended to integrate Google's Nest smart home devices with ADT's professional monitoring services, enhancing the overall smart home and security experience for customers.

As part of its product lineup and packages, ADT offers the following Google Nest devices:

  • Google Nest Cam (outdoor or indoor, battery)
  • Google Nest Doorbell (battery)
  • Google Nest Cam (indoor, wired)
  • Google Nest Mini (2nd gen)
  • Google Nest Hub (2nd gen)
  • Google Nest Hub Max
  • Google Nest Thermostat

ADT and Google Nest device monitoring is integrated in the ADT+ app.

7. ADT professional and DIY installations

When you purchase an ADT home security package, you have the option to install your devices yourself or have ADT come to your home to install devices professionally. In many cases, ADT offers special discounts and offers if you choose a pro installation.

8. ADT system monitoring and response technology

ADT’s System Monitoring and Response Technology lets you easily verify or cancel an alarm with just one tap through your ADT mobile app. Each ADT mobile app is equipped with ADT Alarm Messenger™, a text messaging system that allows you to contact your emergency contacts to determine if an alarm is a real emergency. If you require emergency assistance, you can press the “Request Police” button in Alarm Messenger and 911 dispatchers will be sent to your home.

In addition to these quick and easy mobile app functions, ADT has six 24/7 professional monitoring centers. Thus, when you purchase an ADT package and a professional monitoring contract, you’ll be looped into a monitoring center immediately if one of your security devices is triggered.

9. ADT live virtual assistance

ADT offers live virtual assistance if you need support, assistance in setting up your new devices, and more. In most cases, you will have a video call with an ADT professional, removing the need for an in-person visit to troubleshoot any issues/concerns you may be encountering with your ADT system.

10. ADT customer reviews

ADT is ranked in the Top 10 Best Home Security Companies on BestCompany.com. Compared to other ranked home security companies, ADT reviews are currently limited. However, we can derive some patterns from customer sentiment that may be helpful if you’re considering ADT for your home security needs.

ADT reviews on BestCompany.com are currently mixed. Some recent reviews include complaints from customers about unexpected installation fees and other hidden charges.

However, 75 percent of ADT reviews are 4 or 5 stars. And satisfied ADT customers frequently highlight the following about their experience with company:

  • Feeling of security and safety in their homes
  • Reasonable pricing for devices and monitoring
  • Ease of remote system control and monitoring via mobile apps

The final word

Is ADT a good security system? Is ADT worth it? These are important questions to consider that can only be answered by researching and comparing the home security company options available to you. However, with your new foundation of knowledge about ADT, you may now be better equipped to make the best decision for your home security needs.

ADT Home Security Products and Reviews

Learn more about ADT's home security products, packages, and pricing. And read ADT reviews from verified customers.

Learn More
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