Contact ADT Alarm Guard

At Alarm Guard, our representatives want to make sure that as an ADT customer, you can feel good about contacting us at any time you feel the need to. Reach out to us by either calling or filling out the webform on this page.

If you're not yet an ADT customer and would like to learn more, be sure to reach out through the ADT sales phone number. A home security professional will be happy to work with you in determining the right home security solution for your home.

For existing ADT customers, reach out on the ADT Customer Service phone number, and a representative will be happy to handle any questions or concerns you might have about your system or service.

adt security sign

For ADT Sales

1-800-730-9580


For Existing ADT Customers

1-888-238-2727

*See complete Terms and Conditions