Here is what our team is doing to keep our customers and employees safe amid concerns of COVID-19. Learn More.

Call Support

Whether you’d like to book an installation appointment, are trying to reschedule an appointment, or have questions on your new ADT-monitored security system, we’re here for you. Go ahead and give us a call at 833-319-7449. Our office hours are Mon-Thu, 9:00 AM - 7:00 PM and Sat-Sun 9:00 AM - 5:00 PM. 

You can also look at our security FAQs to get answers to our most popular questions.

Corporate Headquarters

11646 Lakeside Crossing Ct St. Louis, MO 63146