HELP PROTECT YOUR HOME
ADT Home Security in Catonsville, MD
ADT is America’s most trusted* security company, tested and proven throughout our 150-year history Catonsville homeowners know we can help them protect what matters most.
Compare ADT security packages
Compare ADT security packages
Outdoor Video
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Front Door Protection
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Total Safety
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ADT+ Mobile App & Control
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Intrusion Detection
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Trusted Neighbor
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Front Door Video
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Perimeter Video
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Motion Detection
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Fire & Carbon Monoxide Detection
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Water & Temperature Detection
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Remote Access
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Alarm Cellular Backup
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30-day Event History
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Theft Protection Guarantee¹
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Money Back Guarantee¹
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24-Hour Battery Backup
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- 1 Requires ADT Complete pro monitoring plan and compatible devices. See here for terms.
- 2 Terms and conditions apply, see here for terms.
- 3 Applies after ADT has made attempts to resolve a system related issue. Requires purchase and continual monthly payment of both QSP and professional monitoring at time of activation to be eligible. See here for terms.
Two easy installation options
Two easy installation options
Convenience and protection in the palm of your hand
Convenience and protection in the palm of your hand
The ADT+ app lets you access your ADT system, Nest cams and Nest thermostats, all in one place.*
Screen images on this page are simulated
Happy Customers in the Catonsville Area
Powell
Cambridge, MD
via ConsumerAffairs
Cambridge, MD
via ConsumerAffairs
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."
Nicholas
California, MD
via ConsumerAffairs
California, MD
via ConsumerAffairs
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."
Charles
Clearwater Beach, MD
via ConsumerAffairs
Clearwater Beach, MD
via ConsumerAffairs
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.
Same-Day Installation- 6-Month Money-Back Guarantee*
- 24/7 Live Phone Support
- 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
- Fruitland
- Eden
- Hebron
- Delmar
- Allen
- Parsonsburg
- Quantico
- Pittsville
- Mardela Springs
- Princess Anne
- Whitehaven
- Powelville
The ADT+ app gives you convenience and protection in the palm of your hand. You can access your ADT system, Nest cams and Nest thermostats, all in one place.*
More control, more choices, more peace. ADT has partnered with Google to give you more ways to help protected and stay connected to your home. Integrate Nest cams, Nest thermostats and Nest Hub for a more connected ADT system you can easily control, whether you’re at home or on the go.