Although the core element in CLIL and immersion programmes is the integration of content and language, it is challenging to achieve a balance between the two to meet the dual-objective of CLIL. Research on the beliefs teachers have about CLIL and the way they understand the role of content and language in their classes is crucial to achieve that balance. In the Basque Autonomous Community (BAC), a multilingual region in Spain, schools are implementing CLIL programmes in order to improve students' English proficiency and foster multilingualism. This case study aims at exploring how teachers in this particular setting conceptualise the integration of content and language in CLIL and their understanding is reflected through pedagogical practices. For that purpose, the thoughts and practices of two CLIL teachers with different teaching backgrounds are examined here. The findings show that teachers understand and implement CLIL in different ways and that there are substantial differences between the content-oriented teacher and the language-oriented teacher. This study shows that it is difficult to achieve a balance of content and language in CLIL classrooms because some classes tend to be content-oriented without enough attention given to language, while others are language-oriented without enough attention paid to content.