 In 1981, Pettigrew moved to Heart of Midlothian for a £120,000 fee, going on to achieve promotion to the Premier Division at the end of the 1982-83 season.He joined Morton in 1984 for one season, then ended his playing career the following season after playing a small number of games for Hamilton Academical.It was at Motherwell that he won five caps for Scotland, 4 in 1976 and 1 in 1977.