Home Alarm Systems Customer Service
For New ADT Home Alarm Systems
Learn more about how ADT can protect your home and family
Contact a security advisor at 1-877-360-3458.
Sales Center Hours:
English Speaking Agents:
Mon-Fri 7am-1am EST, Sat 9am - 12am EST & Sun 10am - 10pm EST.
Spanish Speaking Agents:
Mon-Fri 12pm-9pm EST
Current ADT Customers
For assistance with an existing ADT home alarm system contact ADT at 1-866-746-7238.
If you have a question about your installation appointment and you would like to speak to a Customer Relations Associate, please call 1-866-382-1697.
Customer Relations Hours:
Monday – Friday: 8:30am – 7:00pm EST