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Check fraud is on the rise. Protect your accounts by monitoring activity often in Online Banking, the GSB Mobile App, and through account alerts. Learn more about how to identify fraudulent checks.

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Contact Us

Help Center

Routing Number: 211274573
Phone
Call
Fax machine
Fax
  • (207) 839-4757
  • Loan Payoffs:
    (207) 839-3158
  • Deposit Account Verifications:
    (207) 839-4233
Clock
Customer Service Hours
  • 7:30am - 5:00pm: Mon–Fri
  • 7:30am - 12:00pm: Sat
  • Closed: Sunday
  • Customer Service will be closing early at 1:00pm on Thursday, August 18 to celebrate our employees at a company event.
Office
Customer Service Office Address
10 Wentworth Drive,
Gorham ME 04038
Lost or stolen card?

To report a lost or stolen debit, ATM or credit card during business hours, please call:

(207) 839-4796

After hours, please call:

1-800-500-1044 for lost or stolen ATM/debit cards.

1-800-883-0131 for lost or stolen credit cards.

Lock Icon Lock Your Debit Card with Card Controls in the GSB Mobile App.

For other tips to protect your privacy and personal financial information visit our Security Center.

To protect your security when you communicate with us electronically, please do not include confidential and personal information such as Social Security Numbers and account numbers.

Need further assistance?

Chat with our live support team during normal business hours.

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