Eilertson specializes in the installation of below-grade materials in electrical substations. The company has expertise in electric, telephone and fiber facilities. It performs work that ranges from low-clearance drilling to finish graveling. Eilertson s capabilities include storm damage restoration, vacuum excavation, oil containment, subsiting, and foundation, control cable and grounding installation. The company assists customers with direct buried cables, street lighting and drilled piers. It engages in common requests and custom projects. Eilertson was established in 1956 and has a location in Fond Du Lac, Wis.