List of ADT Stores in Garnet Valley, PA Outlet Note Regular Brands ADT Pennsylvania Garnet Valley Rating 4.9 based on 81 votes Official Website http://www.adt.com/ Products Alarm Monitoring Services NameAddressPhone Name/Address/Phone ADT outlet - Garnet Valley 1440 Conchester Hwy, Ste 17 (888) 256-5613 People Also Viewed