Use the menu below to find complete location and contact information.
Lobby
Walk-in: Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Drive-up
Mon – Fri 8:00am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby Hours
Walk-in: Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby Hours
Walk-in: Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Drive-up Hours
Mon – Fri 8:00am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Mystic Auto Bank Express is drive-up only.
Drive-up Hours
Mon – Fri 8:00am – 4:00pm (Branch closes from 11:00am – 11:30am) • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby & Drive-up Hours
Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby Hours
Walk-in: Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Drive-up Hours
Mon – Fri 8:00am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby & Drive-up Hours
Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
One Franklin Square
Norwich, CT 06360
We’re moving! Our One Franklin Square / 300 Main Street location will close on June 27, 2025. On July 1, 2025, we will open our new branch location at the Mercantile Exchange Building, 55 Main Street, Suite 310, Norwich, CT 06360.
Lobby & Drive-up Hours
Mon – Fri 8:30am – 4:00pm
Lobby Hours
Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Drive-up Hours
Mon – Fri 8:00am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby & Drive-up Hours
Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby & Drive-up Hours
Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby & Drive-up
Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby Hours
Walk-in: Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Drive-up Hours
Mon – Fri 8:00am – 4:00pm • Sat 9:00am – 12:00pm
Video Banking ATM
Mon – Fri 8:00am – 7:00pm • Sat 8:00am – 3:00pm
Lobby Hours
Walk-in: Mon – Fri 8:30am – 4:00pm • Sat 9:00am – 12:00pm
Drive-up Hours
Mon – Fri 8:00am – 4:00pm • Sat 9:00am – 12:00pm
Monday – Tuesday: 8:30am – 8:00pm
Wednesday – Friday: 8:30am – 4:30pm
Saturday: 11:00am – 3:00pm
Sunday: 11:00am – 2:00pm
One Franklin Square
Norwich, CT 06360
We’re moving! Our One Franklin Square / 300 Main Street location will close on June 27, 2025. On July 1, 2025, we will open our new branch location at the Mercantile Exchange Building, 55 Main Street, Suite 310, Norwich, CT 06360.
*Customer Care Center will be open on these days and can be reached at 860-448-4200.
Our ATM network provides Nationwide access to cash.
Safe and secure access to your Chelsea Groton accounts and apps to help you manage your money on the go!
Connect with a local Video Banker who can help with most of your banking needs, through our Chelsea Live App or Video Banking ATMs.
Yes, the fee is 3% with no charge for Relationship Account customers.
Yes, services are available for customers; contact any of our branches or our Customer Care Center for assistance at 860-448-4200.
Bank checks and money orders are available for purchase by bank customers through any of our 14 branch locations.