Gas Utility Companies
Connecticut Natural Gas Corporation
Customer Service: 860-524-8361
Greenwich Area Customers: 203-869-6900
Emergencies: 866-924-5325
Southern Connecticut Gas Company
Customer Service: 800-659-8299
Customer Service: 800-659-8299
Emergencies: 800-513-8898
Eversource - (Yankee Gas Services Company )
Customer Service (Residential): 800-989-0900
Customer Service (Residential): 800-989-0900
Customer Service (Business): 888-688-7267
Emergencies - 877-944-5325