Electrical Contractors O'Connell is a full service electrical contractor serving New York State and surrounding regions of the northeast. We maintain fully staffed offices in Buffalo, Rochester, and Syracuse as well as a satellite office in Albany. As the nation's 26th largest electrical contractor, O'Connell covers every major service segment of the industry. We provide comprehensive design-build, construction, service, maintenance, and emergency response services. With more than 100 years of electrical construction experience under our belts, you can be assured we have the capability and know-how to complete your project at budget and on schedule.