Winchester Bancorp, Inc. operates as an investment holding company of Winchester Savings Bank which engages in providing banking services. Its personal banking products and services include deposits, such as Nexus and Nexus Plus, checking, savings, money market, certificates of deposit, and individual retirement accounts, loans, including mortgage, home equity, and consumer loans, and services, such as convenience services, Internet and mobile banking, insurance products, and other services. The company is headquartered in Winchester, MA.