How to Reach ADT Customer Service

You can reach ADT customer service by dialing their 800 support number which is 1-800-521-1734. Live customer service is available via this number available 24/7..

ADT Customer Service on Social Networks

You can also reach ADT customer service via social networks. You can reach ADT Facebook page at or via ADT Twitter page at

ADT Brief History

ADT was founded in 1874. Its first headquarters were located in Florida.

ADT Customer Service Options

ADT Online Customer Service and Other Useful Links

ADT Phone Numbers

    For customer service dial 1-800-521-1734. ADT Phone Customer Service

  • Call ADT 800 number via 1-800-521-1734

ADT Customer Service Working Hours

You can call ADT customer service and reach live customer service agent during following working hours: available 24/7. Call center phone number is 1-800-521-1734.

Read more information about ADT.