After taking over the family business, Boscov expanded the original store at Ninth and Pike Streets in Reading. In 1962, he opened Boscov's West in Sinking Spring, Pennsylvania, the company's first full-line store. Boscov's North opened in Muhlenberg Township, Pennsylvania in 1965 and Boscov's East opened in Exeter Township, Pennsylvania in 1967. During the 1970s and 1980s, Boscov and his brother-in-law, Edwin Lakin, expanded the chain to Pennsylvania, Maryland, Delaware, New York and New Jersey. By 2005, Boscov's had 39 stores with $1 billion in sales.