Customer Support
Whether you’re looking to book an install, need to change your appointment time, or have questions on your newly-installed ADT-monitored system, we’re here to help. Simply call us at (909) 247-3368. Our office hours are Mon-Thu, 9:00 AM - 7:00 PM and Saturday & Sunday 9:00 AM - 5:00 PM.
In addition, you can go to our security FAQs to get answers to common questions.