Lillis Electric, Inc. Share: Electrical Lillis Electric, Inc. Visit Website Request Info 110 12th Ave NE Mandan, ND 58554 (701) 663-3570 (701) 663-2848 (fax) Facebook Hours: Monday - Thursday: 8:00am - 5:00pmFriday: 8:00am - 2:00pmSaturday - Sunday: Closed About Map About Lillis Electric is a family owned company, serving the Bismarck-Mandan and surrounding areas since 1995. We appreciate your business and look forward to taking care of your electrical needs. What's Nearby? Distance: 5 10 15 20 25 50 mi.