Connecticut electricity utility customers of Eversource, formerly the Connecticut Light and Power Company, can contact customer service at 800-286-2000, as of 2015. Representatives are available Monday through Friday from 7 a.m. to 7 p.m.
For credit and collection inquiries, customers can call 800-286-2828. Business customers can call 888-783-6617. Business customer services representatives are available Monday through Friday from 8 a.m. to 5 p.m. To report energy theft, customers can call 800-286-5350.
For assistance with gas services, customers can call 800-989-0900, and business customers can call 888-688-7267. For credit and collection inquiries, customers can call 800-438-2278. To report a gas leak or other emergency, customers can call 877-944-5325.