The 25 year old is set to arrive at Tynecastle from Debreceni VSC, with the view to signing a permanent deal in the future.
"We will take him at first on loan for six months, then maybe after if he is happy we can talk about a transfer," Laszlo told the Evening News.
"We have been looking for a first-choice goalkeeper because Steve has been doing a great job but he is the goalkeeping coach, not the real goalkeeper.
"Jamie MacDonald is the No.2 but I am trying to build a young team. The players I bring must be not only young, they must have international experience.
"Balogh is a young goalkeeper and he has the experience. He played once for Hungary and he has experience of playing in Champions League qualifying rounds and the Uefa Cup.
"He is a two-time Hungarian champion and two-time Hungarian cup winner. We have searched for this for a long time in the market. If you don't have so much money you must search and now we have found some players who are young and hungry."