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Customer Service Center

  • Welcome to Washington Gas’ eService Center.

    Please login below with your username and password or check your account by simply entering your 12-digit account number and address after clicking any of the options in the light blue box to the right.

    Washington Gas would like to remind you to update any payment or bank accounts that may require the appropriate account number. Your login information - username and password - remain the same. 

    Available Paymen​t Options:

    • eService: Check, Debit and Credit Card payments. Free
    • Payment Lines: 844-WASHGAS (844-927-4427) / 888-360-5647 (debit/credit cards). Free
    • Cash - Create an EZ-Payslip, print or show on your mobile to pay your bill with cash at any 7-Eleven. Free
    • Customer Service – Account & Bill assistance -844-WASHGAS (844-927-4427)​. Mon-Fri - 8 a.m. to 9 p.m.; Sat - 8 a.m. to 4:30 p.m.; Sun - Closed


    On August 2, 2019, the Maryland Public Service Commission (PSC) issued a ruling to suspend the license of SmartOne Energy (SmartOne), a third-party retail energy supplier, to operate as a natural gas retail supplier in Maryland, on the basis of unfair and deceptive marketing practices.  In the PSC’s action, a civil penalty of $561,000 was also imposed against Smart One. Learn More...​

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