Balhous's career began in the youth system of Al-Karamah before starting his professional career with the senior team. He won with Al-Karamah four Syrian Premier League titles, four Syrian Cups, one Super Cup and helped the club reach the final of the AFC Champions League for the first time. Al-Karamah were defeated 3–2 on aggregate in the final by Jeonbuk Hyundai Motors of the K-League. Three years later, he was an important factor in his side's first-ever accession to AFC Cup Final. Al-Karamah were defeated 2–1 in the final of the second most important association cup in Asia by Kuwait SC of the Kuwaiti Premier League. On 3 October 2011, Balhous joined Al-Wahda on loan until the end of the 2011–12 season. On 26 August 2013, he signed a one-year contract with Oman Professional League club Dhofar S.C.S.C.. On 7 July 2014, he signed a one-year contract extension with Dhofar S.C.S.C.