Guarantee Electrical Company (GECO) is an electrical contractor that provides engineering, construction, and maintenance services for buildings and infrastructure. Its capabilities include design-assist and design-build electrical engineering, electrical construction, systems integration, and energy solutions such as lighting, solar installations, and EV charging, as well as preventative maintenance and emergency electrical services. GECO serves the commercial, industrial, water and wastewater, healthcare, education, logistics, and government and federal sectors.