Hours Of Operations ADT Pennsylvania Johnstown ADT Hours of Operation and Locations in Johnstown, PA 4.7 - 140 votes 1 Locations in Johnstown www.adt.com ADT Hours Category: Home & Garden ADT - Johnstown, PA 15904 430 Town Centre Dr(814) 933-0429 View Store Details Explore JohnstownView More Apparel TJ MaxxRoss Dress for LessBig LotsOllie's Bargain OutletH & M Sports VansSnap FitnessFinish LineDunham's SportsBasic Basic Jewelry ZalesKay JewelersBoscov'sPiercing PagodaBon-Ton 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