• Viimsi State Gymnasium

    The design and construction of a gymnasium building for 540 student’s was aimed at creating a low energy consumption building. The school is a three-story building. The main building material is wood, which is used both in supporting structures and as a finishing material.


  • Enefit connection at Illuka 110kV substation

    One 110kV line cell at Illuka substation for connecting Enefit Kaevandused AS, with a commercial metering system. On 1 July 2021, Merko Ehitus Eesti acquired a stake in Connecto Eesti, and the Merko electrical construction business line merged with Connecto. Acting jointly under the Connecto brand makes it possible for us to offer a significantly broader range …


  • Apartment buildings at Paepargi str 39, 41 and 45

    The three 7-storey buildings in Paepargi have a total 93 apartments. The energy performance of the flats in the class B buildings is ensured by hydronic floor heating and heat-recovery forced-air ventilation. The apartments have good soundproofing qualities with regard to inside and outside noise and sliding glass doors offer protection from the elements. BIM …


  • Renovation of the Vändra 110kV substation

    In the course of the works, the Vändra 110kV substation was renovated using a turnkey method and including delivery of equipment along with the necessary design work, installation, configuration and inspections. The old switchgear was demolished and a new H-type 110kV external switchgear was established along with reconnections of lines, and new control, auxiliary and …


  • Renovation of the Ranna 110kV substation

    The works included reconstruction of one of the most important high voltage substations in central Tallinn as a turn-key project. Scope consisted of design, renovation works of the substation building, delivery and installation of new high voltage equipment, relay protection and telecommunication devices, electrical works and commissioning. To ensure electrical supply in central Tallinn, works …


  • Construction of the Luige-Kangru pedestrian and bike path

    A new asphalt-paved pedestrian and bicycle path running parallel with kilometre 5.3 – 8.5 of basic road no. 15 (Tallinn-Rapla-Türi) was built. This phase was the last one in the structure of the area’s bicycle paths. It will complete the network of bike paths in the area by joining the routes already established earlier. A …


  • Reconstruction of Mõniste 110/35/10kV substation

    Merko Infra complete the reconstruction of Mõniste 110/35/10kv substation. Works included design, construction and installation work of the substation as well as installation and configuration of secondary equipment. A new switchgear building was erected, in which a new two-sectioned 10kV switchgear and an arc-suppression coil were installed. A 35kV switchgear was installed on the substation‘s …