ADT Customer Service. Let ADT provide you with the peace of mind that comes from knowing that the #1 security company in America is helping protect your home and family, 24 hours a day, 7 days a week. For over 131 years, ADT has been the most respected name in the security business.

1-866-746-7238 – Sales
1-888-ADT-ASAP – Service (1-888-238-2727)
1-800-220-3417 – Rebates
1-888-238-2727