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Existing Customers

Are You An Existing ADT Customer?

Call 866-568-6545

If you currently have ADT installed in your home and need customer support, please contact the ADT Customer Account team at 866-568-6545, or visit your ADT Customer Service page.

Are You Looking For New ADT Offers? Call 1-877-712-7549 and press 1

To take advantage of ADT’s new customer specials, call now at 1-877-712-7549. If you’ve previously ordered ADT through this website, you can also receive help with pre-installation questions by calling the number above.