Hours Of Operations Comcast Service Center Pennsylvania Downingtown Comcast Service Center Hours of Operation and Locations in Downingtown, PA 4.5 - 19 votes 1 Locations in Downingtown www.customer.xfinity.com Comcast Service Center Hours Category: Electronics Comcast Service Center - Downingtown, PA 19335 1004 Cornerstone Blvd(800) 266-2278 View Store Details Explore DowningtownView More Apparel Stein MartCarter'sCatherinesAmerica's Best Contacts & EyeglassesRainbow Sports LA FitnessVansUnited SportsG & S Sporting GoodsDSW Jewelry Helzberg Diamonds Recommend For You Xfinity Store R & R Solutions Studio Xfinity Dm Computers Clear Internet Harmony Computer Solutions Ribbons Express Incorporated Fdm Group Incorporated Ventures Unlimited Incorporated Concerto Networks