YOUR ENERGY COMPANY FOR ALL SEASONS Uncas Gas is a locally operated propane provider serving customers in southeastern Connecticut since since 1971. With offices in Danielson, and Franklin, we cover all of Windham and New London Counties, large parts of Southern Worcester County, and large parts of Tolland County. Our fully-trained and licensed technicians also clean, service, and install heating and cooling equipment and water heaters for your complete year-round energy savings, comfort, and safety. Our service department provides Emergency Service 24 hours a day, 7 days a week, including holidays – so you can rest assured we will be there when you need us.