Baltimore, Maryland based Utility Contractor founded in 1920, specializing in underground infrastructure construction. HUBZon ... e Certified Areas of Expertise: · Gas Mains · Communication Conduit Systems · Steam/Hot/Chilled water · Sanitary Sewers · Storm Drains · Electric Transmission and Distribution Systems · Tunnels, Auger Boring to 36”, HDD · Dewatering and Well Points · Utility Locating Services and Test Pitting · Cast in Place and Precast Manholes · Restoration and Streetscape Work read more