This is a Bachelor’s degree project withthe aim of investigating how to preventwarranty errors in apartment buildings.Our goal has been to compile the mostcommon warranty errors and the reasonbehind them.To achieve this goal, we have studiedthe warranty protocols from fiveprojects. We also performed interviewswith people who work in house productionand people who work with warranties. Thepurpose of the interviews was to findout the underlying causes of warrantyerrors and what one could do to preventthose.Cracks in walls and ceilings were themost frequent remarks on the warrantyprotocols. Remarks on the floors,windows and doors were also common, butnot to the same extent. This wasconfirmed both by the studies of thewarranty protocols and from theinterviews. The reasons behind thesewarranty errors were based on manydifferent things including deficienciesin the choice of technical solutions andmaterials.The results from the interviews showedthat if the company is to preventwarranty errors they must firstly raiseawareness about warranty errors.Secondly, they should highlight what themost common and costly warranty errorsare. In order to do this they shouldstart gathering statistics from thewarranty protocols.An evaluation of each project should bedone when the warranty expires. Thewarranty errors that occurred and theunderlying causes must be analysed. Theevaluation of each projekt must be usedto prevent future warranty errors.Experience feedback is very important ifwarranty errors are to be prevented.

This thesis is ordered by Peab Sweden AB Regional Jönköping and concerns of warranty inspections. The intention is to work out a basis, which show the most common complaints is the warranty inspections, and make a small analysis on what causes them to be. The report also presents possible solutions to prevent the occurrence of defects. It also covers the issue of how the client looks at Peabs way to overcome the objections of warranty inspections. The report has the following issues: •What are the most common errors observed during the warranty inspection? •What are the causes of complaints? •What can be done to reduce the number of complaints? •How the customer thinks that the complaints be addressed? Twenty-five Guarantee survey records from the projects Peab has done in recent years has been the starting point for the investigation. In the protocols, we have categorized the remarks and made a compilation of common remarks. Through interviews with inspectors, buyers, site managers and Peab's inspection team the results have been analyzed and interpreted. These survey methods have resulted in various proposals for measures that can reduce the remarks. An example may be to inform professional workers in the building about what the most common remarks are and how to guarantee that these can be prevented. The compilation is categorized according to the most common complaints, construction types, actors and types of buildings.The compilation of inspection protocols showed that the cracks are the most common complaints. The interviews gave confirmation that the survey compilations of protocols were equivalent to reality. The conclusion is that the most common complaints are mainly cracks in the wall corners, roof angles and doors that need to be adjusted. These remarks are mainly due to the tight construction times, sloppy and wet materials that are installed. But there are also many other factors contributing to many of the common faults of warranty inspection that cannot be defined as a single cause. Interviews with clients revealed that they are satisfied with the way Peab remedy defects observed at guarantees, while the survey does not disturb the residents/production.