 His brother, Gareth, also a footballer, having played for the Hartlepool United academy; his father, Taffy, is a former manager of Seaton Boys; Horwood attended both St Aidan and Brierton School and lived in Seaton Carew before moving to Sheffield United.In 2016, he became a father.While at Chester, Horwood changed his allegiance to supporting Chester and worked with the University of Chester's football teams and coached the first team to an unbeaten season in 2016/2017 as part of the Blues' community programme.