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Customer Assistance

The Sustainability Hub provides customers with facility tours, energy conservation advice, energy-efficient appliance details, statewide programs and incentives for customers, and general energy and electricity information. If you are looking for specific account information or bill payment services, we are happy to connect you to the following National Grid services:

Customer Service Phone Numbers:
Smart Grid
Smart Grid Hotline 855-377-SMART (7627)
MA & RI—Electric
General Service 800-322-3223
Electric Outage (24/7) 800-465-1212
Credit/Collections (M–F 7:00am–9:00pm; Sat. 7:00am–5:00pm) 888-211-1313
Work Request (M–F 7:00am–4:00pm) 800-375-7405
MA—Gas
Customer Service 800-233-5325
Gas Emergency/Leak (24/7) 800-233-5325
NSTAR Gas Service 800-592-2000