Purpose: This study aims to identify shortcomings in the turnkey contract, to further find solutions and determine what improvements can be made to the construction process in the turnkey contract for renovations. Method: The work is based on a literature study, which is further used as a theoretical basis for the work. Interviews with project managers and clients have been carried out in collaboration with the Real Estate Office in the Fastighetskontoret in Västerås and one redevelopment project at a school within the City of Västerås was investigated. Results: Collected data from the literature regarding the turnkey contract for redevelopment constitute a theoretical basis for the work. The theoretical part is used for a comparison with data collected from the interviews and the studied project, which shows the worker’s part. The comparison focuses on large parts of a construction process which include, for and disadvantages of turnkey contracts, shortcomings that arise in the application of turnkey contracts for renovation work, the division of responsibilities over correction between the client and the contractor and views on the standard agreement ABT06. Discussion: The project studied did not have major shortcomings, but on the other hand, the work points out some shortcomings regarding communication during the work and coordination planning. No major errors are caused due to the shortcomings of the project, but it would be helpful to take those shortcomings into account to avoid those in future projects. Improvement proposals are further presented to streamline the work on new renovations within the city of Västerås with the Real Estate Office. Conclusion: The improvement proposals that the work has arrived at include instructions for customers to submit clearer tender documents to contractors, and that both partners in the work maintain good communication when needed to avoid delays and extra additional costs.