Many lighthouses exist for a long period of time and are of great architectural, historical and material value. For repair and reconstruction of each lighthouse specialists of GT Corporation develop an individual design.

Technology of repair considers structure construction, degree of damages and operation conditions. In many cases repairs have restoration character. To ensure durability of repairs modern anticorrosive materials resistant to environmental attacks in open sea conditions are used. Materials, equipment and machinery are delivered to the site by seagoing vessels or helicopters. Diving and climbing activities play an important role in this type of repair works.

Works on repair, reconstruction and restoration of few tens of lighthouses and navigation beacons were successfully conducted by specialists of GT Corporation in Estonia, Latvia, Russia, Spain.