ADT Customer Service and Support
Your ADT phone numbers all in one place
What Is the Customer Service Number for ADT?
Connect to the customer care you need by calling the ADT customer service number at 1-800-521-1734. ADT customer service representatives are standing by to offer high-quality support for your ADT-monitored home security system.
What Are ADT’s Customer Service Hours?
Perfect for those midnight emergencies, ADT customer service hours never stop. Contact ADT 24/7 for continuous customer support any time you need it at 1-800-521-1734.
Find Offers from Protect Your Home
With ADT's only Authorized Premier Provider, Protect Your Home, being a newbie has its perks. Protect Your Home for new customers include an ADT 6-month money-back guarantee*, potential discounts on homeowners insurance with a monitoring plan, and $850 of free equipment from Protect Your Home*. Plus, new customers can get same-day installation so you can help protect your home and loved ones quickly.
*Installation starts at $99. 36/24 mo. monitoring contract required. New customers only. Termination fees apply. See Terms below.