ADT Monitoring Customer Service
From technical support to billing for ADT monitoring, we have specialists waiting to assist you. Find the right number for your specific need below.
*$99.00 or $199 customer installation charger and new monitoring agreement. Early termination fees aplly. See terms and conditions.
I need ADT customer service for:
Existing ADT customer service
Call now: 1-877-342-2453
New ADT customer service
Call now: 1-877-815-4752
ADT-monitoring customer service FAQs
What is the ADT monitoring existing customer service phone number?
Any ADT monitoring existing customers can reach out for customer service at (800)-716-3640.