Hours Of Operations ADT California Diamond Bar ADT Hours of Operation and Locations in Diamond Bar, CA 4.7 - 140 votes 2 Locations in Diamond Bar www.adt.com ADT Hours Category: Home & Garden ADT - Diamond Bar, CA 91765 24205 Seagreen Dr(909) 860-6804 View Store Details ADT - Diamond Bar, CA 91765 23410 Golden Springs Dr(909) 718-4512 View Store Details Explore Diamond BarView More Apparel Big LotsH & MCarharttCarter'sCatherines Sports TargetLA FitnessColemanAll American Sports ShopAll Sports Recommend For You Stacy Furniture Build-A Bear Workshop J. C. Penney 84 Lumber A.C. Moore Arts & Crafts Adams Golf American Standard American TV & Appliance Andersen Windows & Doors Andronico's Market