The 26th Ephorate of Prehistoric and Clasical Antiquities consists of a Conservation Department, which is responsible for the conservation of archaeological objects. The department employs conservators and conservation technicians. For the objects coming from its jurisdiction areas, the Ephorate has conservation Laboratories, based at:
1) The Archaeological Museum of Piraeus
2) The storage area at Elliniko
3) The Archaeological Museum of Salamis

The specialised staff employed, is able to perform conservation works on objects made of ceramic, stone, metal etc., incoming to the laboratories from archaeological excavations (salvatory or not), as current museum objects or parts of monuments.
The conservators of the Ephorate are also responsible for the execution of conservation works - excluding restoration - (surface consolidation, cleaning, etc.) performed on the monuments under the supervision of the Ephorate.
The Ephorate has also recently contributed to special needs of other regional services providing access to specialised conservation equipment and services.

During 2009, 1665 objects have undergone conservation treatment in the Ceramics Conservation laboratory of the Piraeus Archaeological Museum, coming from excavations in the following municipalities: Piraeus, Tauros, Kallithea, Moschato, Kaminia, N. Faliro, Aghios I. Rentis, Salamis, Voula, Vari, Varkiza, Glyfada, Kyther, Antikythera, Aegina. Conservation work has been performed also, on objects from the Marathon Archaeological Museum and the New Museum of the Athenian Acropolis.