Valdes revealed last week that he will not extend his current contract at Barcelona that runs out in June 2014.
"At this moment there is no contract with Barcelona," Courtois's father told La Derniere Heure.
"A few days ago Thibaut had contact with the goalkeeper coach of Chelsea, who will soon report on his progress at Atletico. When this is done, we will work with Chelsea to talk about his future."
The Belgium international's agent Christophe Henrotay added: "Thibaut will finish the season at Atletico. He belongs to Chelsea, we'll see later but there is no contact with Barca."
Courtois joined Chelsea from Genk in the summer of 2011 and has been on loan at Atletico since then.