The article presents the analysis of damages and concept of reinforcing of the wood ceiling at the public utility building. The initial inspection reveals alarming, excessive beams deflections. After the existing floor coating was removed, the detailed geological research and other necessary condition survey was conducted. The received data was used to perform static calculations and to test the strength of the structural elements. Due to its poor technical condition, further exploitation of the ceiling is forbidden. The solution how to strengthen the ceiling was presented. The basic difficulty in developing the concept of reinforcement was the need to ensure the continuity of use of the room below.

Keywords: ceiling; timber; failure; repair.