In 2009 Statskontoret has stated that the numbers of construction failures has increased in the Swedish construction sector. One of the reasons to insufficient quality management in the construction sector is the project based organization. A project based organization has a temporary nature which may bring deficits in continuous improvement. Continuous improvement means that small improvements in the daily work within an organization achieve a higher quality level.The purpose of this study is to better understand how a company in the construction sector can improve its management of quality deviations, in order to support the work with continuous improvements. The study is based on a case study in order to more specifically investigate how management of quality deviations is carried out within STRABAG Sverige AB.Initially a literature study was carried out in order to increase a better understanding of how a quality deviation can be defined, and how management of quality deviations can be designed, in order to support continuous improvement in a company in the construction sector. Then a description of the current management of quality deviations within STRABAG was carried out. The description consists of information collected through documents and semi-structured interviews with persons in the organization. In the analysis a comparison was made between the produced frame of reference, and the description of current management of quality deviation in STRABAG. This was made with the intention to identify in what extent the current management of quality deviations was carried out in the organization. From this analysis several improvement areas could be identified with the purpose to strengthen STRABAGs management of quality deviations.The results from this study consist of seven recommendations that describe how STRABAG can improve their management of quality deviations, in order to strengthen continuous improvement. The recommendations refer to: • Define what a quality deviation is• Implement a systematic analysis on quality deviations• Improve a continuous follow-up for corrective actions• Implement a statistical follow-up on quality deviations• Clarify management’s commitment in the quality improvement• Create an acceptance for mistakes and highlight their importance• Improve the exchange of experience of what improvements that had been made on quality deviations in organizations projects / Validerat; 20130605 (global_studentproject_submitter)