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National Grid Customer Service
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Contact National Grid Corporate

Toll free phone number: 781-907-1000
Welcome to the National Grid complaints department brought to you by HissingKitty. Experienced poor customer service? We make it easy to file a formal complaint against National Grid online. Simply use our free form and your feedback will be instantly forwarded for review. Need to contact the National Grid corporate office? We have the mailing address, phone number, and email address listed below.

Experienced poor service? File a complaint here!

National Grid Contact Information

Report complaints to corporate and get satisfaction

  • National Grid headquarters address

    • 40 Sylvan Road
    • Waltham
    • MA 02451
    • United States

  • Company website

    www.nationalgridus.com

  • 1-800 phone number

    781-907-1000

  • Better Business Bureau rating

    A+

  • Customer service hours

    24 hours a day

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