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Protect Your Home in Catonsville Today!

ADT Wireless Home Security System

*36 month monitoring contract required. Applies to Traditional Service Level only without Extended Warranty Plan.
See important terms and pricing here.

Keeping Catonsville, MD homeowners safe from criminals


At ADT, we understand that the most important service we can offer to you is to protect the security and tranquility of your family and home. To us, this means more than just installing a home security system in your Catonsville, MD home. We have been the leading home security company for over 140 years. At ADT, we are also leaders among home security companies in Catonsville, MD developing home automation systems that work in conjunction with our home security alarms. You can be assured that your home is monitored and secure, 24 hours a day/365 days a year, no matter how far you may be from Catonsville, MD. We ensure your home is monitored and secured for a variety of disasters.

Reliable Home Security Systems with the Latest Technology Innovations


The ADT home security systems installed in Catonsville, MD are more advanced and more effective than ever when paired with Pulse - our cutting edge home automation service. The Pulse home automation control smartphone app gives you full access to your security alarm and household functions from the palm of your hand, whether you're in Catonsville, MD or anywhere else your life takes you.

From the comfort of your smartphone you can easily manage your home security with the ability to: Arm and Disarm the System, Receive Security Alerts, Adjust Your Thermostat, Control Lighting and Appliances, Lock and Unlock Doors

Pulse home automation means you never have to worry about forgetting to turn off appliances, setting the alarm, or walking into a dark empty house, and the service is matched by ADT's dedication to giving you the fastest response when your security alarm is triggered.


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

Security Camera and Surveillance Systems


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.

Catonsville Home Automation Services

Easily manage your security, lifestyle and home all from the palm of your hand with our home automation services. Our Pulse system is designed to help you control your living environment, whether you're home or not. Keep your home safe and your family comfortable by easily adjusting the lighting, temperature and even your home security system. Learn more about Home Automation Solutions.

The best part is that all these ADT home security services are affordable for the everyday home, condo, apartment, or townhome owner in Catonsville, MD. The peace of mind which ADT security systems provides, by ensuring your family and home are safe, is invaluable. We invite you to compare our home security alarms, systems, and automation can provide peace of mind at a price you can afford.

Smart Home Technology in Catonsville


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.

ADT Security Services

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.

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.

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.

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.

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."

Secure your home in Catonsville with an

ADT Wireless Security System

ADT Security starting at $28.99

*36 month monitoring contract required. Applies to Traditional Service Level only without Extended Warranty Plan. See important terms and pricing here.