Contact Us

Customer Care

542-7711 or Toll Free 1-800-992-0316
Fax: 603.542-5432

To e-mail CSB customer support, please click here.  
 

CSBee-Line

1-888-Call CSB (1-888-225-5272)

From the local area, call 542-5437
 

CSB Offices

Main Office
Washington Street Office
Maple Avenue Office
Charlestown Office
Cornish Office
 

CSB Routing & Transit Number

2117-7019-0