The timeline of the work in the area of the castle and specifically in the citadel is outlined as follows:

In 1987, restoration was carried out on the curtain wall of the citadel, but parts of the western tower that showed damage and loss of material, such as the ramparts and specific sections on its facades, were also reinforced.

The first architectural and structural design conducted on the citadel was approved in 1999. Subsequently, in 2004, the project for the restoration and promotion of the castle was approved on the condition that new designs for this project were provided.

 In 2008, under the 3rd CIP, the work to restore both the curtain walls of the citadel and a large part of the middle wall was completed by the 11th Ephorate of Byzantine Antiquities.

The first phase of the consolidation of the castle of Servia ensued, during which the restoration works that were carried out primarily concerned the consolidation and maintenance of the Byzantine castle, especially interventions considered necessary for restoring its structural integrity.

The second phase of the works on the castle began in 2011. Initially, the necessary excavations were carried out both in the area of the gate of the middle wall and inside the citadel, in the areas around the western and north-western towers, in order to document the construction phases of these buildings and complete the final restoration plans (3D mapping of the area, final structural design, soil engineering examination).

Finally, in 2014, the additional project for fixing and restoring the castle of Servia and the western tower of the citadel was approved. The restoration work of this phase started in August 2020.