Police were called to Carlos Barber Shop on Garfield Road to reports of a serious assault at around 3.30 yesterday afternoon.
A White man in his early 20s, in black clothing and a Nike t-shirt, was last seen heading towards Addlestone station.
A 22-year-old man has been arrested for attempted murder and possession of an offensive weapon; a knife was recovered nearby.
Anyone with information is urged to contact police.