Hours Of Operations ADT Maryland Edgewater ADT Hours of Operation and Locations in Edgewater, MD 4.7 - 140 votes 2 Locations in Edgewater www.adt.com ADT Hours Category: Home & Garden ADT - Edgewater, MD 21037 (410) 741-2070 View Store Details ADT - Edgewater, MD 21037 535 Mayo Rd(410) 798-1100 View Store Details Explore EdgewaterView More Apparel KmartCatherinesDotsAthletaAdmiral Cleaners Sports Capital StoresWest MarineBlades 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