Lillis Electric, Electrical Contractor, Mandan, ND, Bismarck, ND Residential, Commercial, Industrial. Lillis Electric is a full-service electrical contractor providing world-class services to commercial, residential, and industrial clients in North Dakota. As the area's electrical contractor of choice since opening its door in 1995, Lillis Electric combines quality, service, and safety to provide clients with electrical solutions that meet budgets and exceed expectations. While our clients' needs are diverse, the Lillis Electric service model delivers effective solutions for every project by uniting our experienced staff and extensive set of professional tools with accurate, comprehensive methods of scheduling and managing project work. You can feel confident calling Lillis Electric, Inc. knowing our highly trained estimators and electricians will treat you, your family and your property with the respect and attention you deserve. We are committed to providing high qu