Assistance for Existing ADT Customers

Thank you for choosing ADT, America's #1 home security provider. Whether you have questions about your ADT installation appointment or the ADT system currently in your home, we can help.

Do you:

  • Have a question about your ADT installation appointment?
  • Would you like to make an update to an ADT security package that you are waiting to have installed?
Call for priority service 1-888-606-2281

Do you:

  • Have a question about your ADT bill?
  • Have a concern or question about an ADT system that has already been installed in your home?
Call ADT Corporate 1-800-238-2727

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