Hours Of Operations ADT Illinois Ottawa ADT Hours of Operation and Locations in Ottawa, IL 4.7 - 140 votes 1 Locations in Ottawa www.adt.com ADT Hours Category: Home & Garden ADT - Ottawa, IL 61350 (815) 313-4255 View Store Details Explore OttawaView More Apparel CarharttCarter'sRainbowFashion BugJustice Sports RoxyBianchi Jewelry Avon 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