Call Support

No matter if you’d like to book an installation, need to change your appointment time, or need help with your new ADT-monitored security system, we’re here to help. Just call us at (312) 319-8662. Our business hours are Mon-Thu, 9:00 AM - 7:00 PM and weekends 9:00 AM - 5:00 PM.

Go ahead and also read through our security FAQs to learn the answers to our most popular questions.