NSTAR Customer Service Phone Numbers

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NSTAR Customer Service
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Contact NSTAR customer service phone numbers

Phone Number : 1-800-666-394-4726

Email : costomer.service@nstar.com

Business Hours:

Website : https://www.nstar.com/

Corporate Head office: 800 Boylston StreetBoston, MA 02199

NSTAR Customer Service Phone Numbers

Customer Service: 1-800-666-394-4726
Pay Bill By Phone:  800 662 7764
Toll free: 

NSTAR Headquarters Info, Email, Phone number, Website and live chat Information

Was a utility company that provided retail electricity and natural gas to 1.4 million customers in eastern and central Massachusetts including the Boston urban area. NSTAR became a subsidiary of Northeast Utilities in April 2012. In February 2015, Northeast Utilities and all of its operating companies (Public Service New Hampshire Connecticut Light and Power Yankee Gas and NSTAR Gas and Electric) became one large company known as Eversource Energy.
If you searching for NSTAR Customer Service Number, you are at the right place. In this post, we have provided a list of NSTAR Customer Service Phone Numbers. You can call NSTAR Customer Support the NSTAR 800 Phone Number given here and solve your queries.

NSTAR Corporate Office Address : – 800 Boylston StreetBoston, MA 02199
Headquarters Email : costomer.service@nstar.com
NSTAR complaint email:
Corporate Office phone number : (617) 424-2000
NSTAR Helpline:
Corporate Fax Number: (617) 424-2431
headquarters website: Click here
Discussion forum: Click here

NSTAR International Customer Service numbers

Canada and the U.S:
United-Kingdom :  
Australia :
United-Arab-Emirates :
Germany :

How to Contact NSTAR TOLL FREE 1-800 NUMBER

  • Hello thank you for calling NStar; for quality purposes your call maybe recorded. I am an automated assistant; how may I help you?
  • Customer service.
  • I understand you want to talk to a customer service representative. I maybe able to help you; you can say things like account balance, payment plan or moving; how may I help you?
  • Account balance.
  • Account balance and recent payments?
  • Yes.


List of numbers for NSTAR Customer care and support

NSTAR customer care number : 1-800-666-394-4726

Support number : 800-340-9822

NSTAR Cancellations: 844 273 7760

NSTAR Executive Team

Werner J. Schweiger: Chief Executive Officer and Director
Craig A. Hallstrom: President, Chief Operating Officer and Director
Philip J. Lembo: Chief Financial Officer, Senior Vice President, Treasurer and Director
Jay S. Buth: Chief Accounting Officer, Vice President and Controller
Gregory B. Butler: Senior Vice President, General Counsel and Director
Darrell McDaniel: President

NSTAR Application download

Android app download for NSTAR

NSTAR IOS app download

NSTAR Services

  • Technical Staffing Solutions
  • Equipment Relocation Services
  • Construction Management Services
  • Facilities Management Services

NSTAR history

NSTAR was formed in 1999 by the merger of BEC Energy and Commonwealth Energy System and currently has the following operating units: Boston Edison Company Cambridge Electric Light Company Commonwealth Electric Company and NSTAR Gas Company
As a part of the deregulation of the local electrical power industry, NSTAR has divested itself of all electric generation facilities keeping only those elements of the business which remain regulated. NSTAR sold its interest in the Seabrook Station nuclear power plant to FPL Group in 2002.

On November 16, 2006, the company announced a 7.4% increase in its dividend to an annual rate of USD1.30 per common share from the previous USD1.21.

NSTAR has ownership of unregulated district energy and telecommunications businesses, including Medical Area Total Energy Plant LLC. which produces electricity steam and chilled water for sale to customers in the Longwood Medical Area of Boston.

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