When rugby union became openly professional in 1995, Tuigamala was one of a number of former rugby union players who returned from rugby league. He played for London Wasps, winning the English Premiership, and later joined Newcastle Falcons in a world record £1m deal. He scored a hat-trick on his third appearance for Newcastle against Moseley at Kingston Park and was an important part of the 1998 Championship-winning side, making 16 appearances that season. He then delayed an arm operation to put in a Man of the Match performance in the 2001 Cup Final. Upon signing for the Falcons, teammate Doddie Weir called Tuigamala "simply the best rugby player in the world".