 Sheffield Wednesday, newly promoted to the Championship, had two bids rejected to buy Maguire in May 2012 but on 21 June 2012, they announced that Maguire had joined them on a three-year deal.He made his Owls debut in the 4–2 League Cup win over Oldham Athletic on 13 August.However Maguire had to wait until 16 March 2013 for another league appearance in the 0–2 defeat against Cardiff City.