Protect Your Home in Catonsville Today!

ADT Home Security in Catonsville, MD

We’re here to deliver the best home security equipment and services to fit your needs - since 1874. Catonsville homeowners trust ADT to help them protect what matters most.

Brick house with an ADT sign out front

Compare pro-installed smart security packages

Compare pro-installed smart security packages

Secure Home
Smart Home
Video & Smart Home
Intrusion detection
Our Best Package
Fire, CO & flood monitoring
Voice control
Touchscreen control panel
Remote access mobile app
Smart home automation
Video security
Stored video clips


Looking for a DIY security system?

Looking for a DIY security system?

ADT is Catonsville’s choice for home security


Whether you’re at home or away at work, we ensure your Catonsville residence is monitored 24/7 for your family’s safety and protection. Catonsville and surrounding area homeowners count on ADT to professionally install and monitor their homes every day. ADT home security systems can include:

  • Digital panel 
  • Entryway contacts 
  • Wireless keychain remote 
  • Motion detector
  • Yard signs and window decals 
  • 24/7 monitoring

At ADT, we believe in protecting what matters most. If your security system sensors are triggered, ADT will alert emergency responders to your home for you. Catonsville homeowners can also receive automated customized mobile alerts.

Happy Customers in the Catonsville Area

Cambridge, MD
via ConsumerAffairs
5-star rating

Jan. 5, 2017

"It's been a year since I relocated and transferred my service to my new home. The area manager still checks with me periodically making sure everything is okay.

 I appreciate the care and concern provided and the assurance that any issues which arise will be promptly resolved."

California, MD
via ConsumerAffairs
5-star rating

Nov. 23, 2017

"The installer was very thorough in making sure everything was set up properly. He made it a point to have me download the apps for ADT and Ring, and showed me how to link the devices to my phone. 

Because of his thoroughness, I didn't have any questions at the end of the installation. Great work."

Clearwater Beach, MD
via ConsumerAffairs
5-star rating

Feb. 3, 2018

"We had another company and we asked our neighbors about ADT and they said that they were very happy with them and we weren't happy with the other company. We've been with ADT for years and we're very happy. 

We haven't had any break-ins and we have it on our rentals house right next door also. There were times when I go next-door to do projects and when I'm carrying stuff in and I don't get to the alarm quick enough and it goes off. I'm always worried what's going to happen, but when we call, we tell them what happened and they ask for the password. Once they get that, then they're fine. I like that feedback immediately so that's good. But I can always use more signs if ADT wants to send us more.

I have recommended them to relatives and friends. I told them our experiences and how accessible ADT always is. Sometimes, we have to take long vacations to be with our grandchildren and we always call them and let them know that, but we have a neighbor who knows our passwords. ADT has never failed and they've done a very good job with what we've asked them to do. I feel very safe when we leave to go on vacation that nothing is going to happen without us being made aware of it right away."

ADT Catonsville Service Area

Our ADT Catonsville team offers professional home security installation and a variety of security and automation products and solutions.

  • Check MarkSame-Day Installation
  • Check Mark 6-Month Money-Back Guarantee*
  • Check Mark 24/7 Live Phone Support

*Subject to certain restrictions

  • ADT Security Services
  • Catonsville MD
  • United States
  • (240) 297-1568
  • Catonsville Office Hours
  • M-F 8am - 4pm
  • Sat/Sun Closed
  • Questions? Call Us Today!
  • M-F 7am - 9pm
  • Saturday 8am - 6pm
  • Sunday 9am - 6pm
Nearby Cities
  • Fruitland
  • Eden
  • Hebron
  • Delmar
  • Allen
  • Parsonsburg
  • Quantico
  • Pittsville
  • Mardela Springs
  • Princess Anne
  • Whitehaven
  • Powelville

With ADT smart home automation you never have to worry about forgetting to turn off appliances, setting the alarm, or walking into a dark house. ADT home security systems installed in Houston offer advanced features when paired with ADT Command - our cutting edge home automation service. The ADT Control smart home mobile app gives you full access to your security alarm and smart home equipment, whether you're in Houston or anywhere else life may take you.

With ADT Control you can easily control your smart home’s equipment on the go. You’ll be able to:

  • Arm and disarm your system
  • Receive automated security mobile alerts 
  • Adjust your smart thermostat 
  • Control smart lights 
  • Lock and unlock smart locks

Our home automation service is matched with our dedication to giving you the fastest response when your security alarm is triggered.

Keep an eye on your home, pets and loved ones with trust-worthy security cameras and surveillance systems. Your surveillance system will automatically start recording if your alarm is ever triggered, and notifications are pushed to your smartphone or tablet. Not only do these investments provide peace of mind, they can also assist with discounts on your homeowners insurance.

Easily maintain control of your home and improve your quality of life with this convenient technology. This provides a simple solution for monitoring all aspects of your home, regardless of where life takes you, from safety (by seeing who is at your front door) to energy consumption. Smart home systems are great for all living situations whether you live in a house, condo, apartment or mobile home.

Get smarter home security with remote control of your system and more. 

Burglary Monitoring

Our home alarm security systems are constantly monitoring to ensure that once a burglary alarm is received at a Customer Monitoring Center, a trained ADT professional will notify you and first responders quickly.

Fire and Smoke Monitoring

When a fire and smoke detector in one of our home security systems is received, a trained ADT professional will notify you and your local fire department as quickly as possible.

Medical Alert Monitoring

Never feel alone again with ADT medical alert monitoring in our home alarm security systems. Push a button to be connected to a trained ADT professional through the two-way voice intercom system. If assistance is needed, this professional will contact the appropriate emergency response services.

Security Camera Systems

With an ADT wireless home security camera system, you can do more than monitor your home security remotely — you can manage your life. For example, looking in on the cable repairman from your office.

Carbon Monoxide Monitoring

A carbon monoxide (CO) leak can spell serious harm for you and your family since it can be impossible to detect without a warning device. Make your home a safer place with CO monitoring services available with most ADT home security systems.