Black & McDonald's high-voltage underground cable specialists handle everything right up to 230 Kv., including high voltage cable and switchgear installations, and substation startup, maintenance and repair. Our power electricians and linemen are subjected to intensive ongoing training. We have people with very specific, hard-to-find skills on staff - such as paper lead cable workers with more than 30 years of experience! Our civil capabilities are key to our "full service" approach. Some of the many varied tasks in the civil utilities specialists area include: installing reinforced concrete manholes, excavation for direct buried cables, concrete-encased ductbanks, concrete bases, road boring, and repairs to water mains, among countless others.