Duffy's Electric, Inc. is a full service electrical contracting specializing in commercial electrical work throughout Maine. We have a three divisions, construction department, service department, and traffic signal department. Our specialty is retail, completing and providing maintenance for the following companies, Lowes, Home Depot, Wal-Mart, Simon Properties, Dicks Sporting Goods, Kohls, Hannaford, Delhaize, Food Lion, JC Penney, Kmart, Sears, Circle K, RH Foster, Sunbelt, United Rentals, Irving, Carquest, Ruby Tuesday, olive Garden, Smokey Bones, Yankee Candle, Delia's, Spencer's, Macy's, Uno's.