Mass Bay Electrical Corporation is an electrical contractor located in East Boston, MA. They specialize in the following: 1. ... Medium & High Voltage Underground Cable Installations. 2. Airport Runway Lighting and Signage Installations. 3. Street/ Highway, sports, & bridge Lighting. 4. Commercial & Industrial Installations 5. 115 & 345KV Transmission Construction 6. Distribution & Transmission Grade Substation Construction 7. Traffic Signal Construction & Maintenance 8. Traction Power and Catenary Construction read more