Hours Of Operations ADT Michigan Dewitt ADT Hours of Operation and Locations in Dewitt, MI 4.7 - 140 votes 2 Locations in Dewitt www.adt.com ADT Hours Category: Home & Garden ADT - Dewitt, MI 48820 (877) 277-0604 View Store Details ADT - Dewitt, MI 48820 13183 Schavey Rd(517) 705-0235 View Store Details Explore DewittView More Apparel CarharttCatherines Sports Bikeworks Jewelry AvonMeijer 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