Winchester Bancorp, Inc. operates as a bank holding company for Winchester Savings Bank that provides banking products and services in the United States. The company offers personal and business savings and checking accounts, non-interest-bearing checking, interest-bearing checking, money market, and savings accounts, as well as certificates of deposit; and one- to four-family residential real estate loans, multifamily residential real estate loans, construction loans, commercial real estate loans, home equity loans and lines of credit, commercial business loans, small business loans, business term loans, and consumer loans including automobile loans, home mortgages, credit lines, and other personal loans, as well as invests in securities. It also provides cash management, safe deposit boxes, wire transfer and foreign currency, notary and signature guarantees, and online and mobile banking services, as well as credit and debit cards and other services. Winchester Bancorp, Inc. was incorporated in 1871 and is headquartered in Winchester, Massachusetts. Winchester Bancorp, Inc. operates as a subsidiary of Winchester Bancorp, MHC.