Seajacks Leviathan and Seajacks Kraken are prepared for their coming assignments, following a series of repair and renewal jobs by Shipdock Amsterdam. The shipyard, part of Damen Shiprepair & Conversion, had been commissioned for the two jack-ups by Seajacks UK Ltd. The Great Yarmouth (United Kingdom) based company has assigned the shipyard various and different major and minor adjustments on the two jack-up sister vessels in between North Sea offshore windfarm and oil & gas installation contracts.