HELP PROTECT YOUR HOME
ADT Home Security in Largo, FL
ADT is America’s most trusted* security company, tested and proven throughout our 150-year history Largo homeowners know we can help them protect what matters most.

Compare ADT security packages
Compare ADT security packages
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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.
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.*
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Happy Customers in the Largo Area
ADT Security Services is rated 4.5 out of 5 stars based on 70 customer reviews from the Largo area

Karen
Largo, FL
via ConsumerAffairs
Largo, FL
via ConsumerAffairs
Nov. 19, 2017
"I was very pleased with the upgrade of system. LOVE THE CAMERAS. Was pleased with the installer too. He was very personable & knowledgeable about his work. Cleaned up after himself.
Glad for the upgrade of the system. Feel very safe now the cameras are in."

Candace
Largo, FL
via ConsumerAffairs
Largo, FL
via ConsumerAffairs
June 22, 2017
"We love our new security system! It replaced another one we had and we're so glad. Our security consultant/installer was very professional. The customer service is fantastic as well.
We wish every company was as good as ADT. We made a great choice and we are very satisfied!"

Diane
Clearwater, FL
via ConsumerAffairs
Clearwater, FL
via ConsumerAffairs
April 21, 2017
"I have been using ADT for over 10 years. I have been able to get help over the phone and also all the servicemen that come to the house are so knowledge, nice, and helpful.
Quality of service is 10+ in my book. I always feel secure with the security provided."
ADT Largo Service Area
Our ADT Largo 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
- 11401 S Belcher Rd #290
- Largo FL 33773
- United States
- (813) 448-3550
- Largo Office Hours
- M-F 8am - 4pm
- Sat/Sun Closed
- Questions? Call Us Today!
- M-F 7am - 9pm
- Saturday 8am - 6pm
- Sunday 9am - 6pm
- Clearwater
- Indian Shores
- Gandy
- North Redington Beach
- Bay Pines
- Dunedin
- Oldsmar
- Pinellas Park
- Kenneth City
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.