Boa Morte signed for the Hammers in January 2007 on a three and a half year contract for an undisclosed fee, which was believed to be around £5 million. He played his first game for the Hammers in an FA Cup tie against Brighton & Hove Albion, setting up two goals and on 13 January 2007 in the Premier League against former team Fulham. On 28 April 2007, he scored his first goal for the club in an important 3–0 win against Wigan Athletic. On 17 June 2010, Boa Morte signed a new two-year contract saying that he was looking forward to working with new West Ham manager, Avram Grant for the next two seasons. In August 2011 Boa Morte’s contract with West Ham was cancelled by mutual consent.
Former Hammer never wanted West Ham move
Former Hammer Luis Boa Morte has said he never wanted to join West Ham and the deal was done behind his back.