Leask Marine has been delivering marine construction solutions since 1985. With decades of experience across projects of all sizes, we provide a comprehensive range of services to meet the demands of this challenging sector.
Our unique combination of specialist vessels and skilled dive teams allows us to deploy the right resources for every project, whether on land, along the shoreline, or beneath the sea. From concept to completion, we offer the complete package to help our clients achieve their goals.
Operating in some of the world’s harshest marine environments, our knowledge, hands-on expertise, and proven track record ensure projects are delivered safely, on time, and to budget. As a trusted “one-stop shop,” we pride ourselves on offering cost-effective solutions that meet deadlines while respecting the needs of all stakeholders.
Case Studies
The Leask Marine team successfully completed 2 seasons of marine dredging support workscopes for our client, Haventus at Ardersier Port.
The first season's work involves clearance of various debris from the entrance channel and port basin in the very unlikely event of potential unexploded ordnance (pUXO) on and below the seabed to allow the capital dredge to take place unhindered. A flat-top barge was mobilised in the existing Ardersier port and will be used to remove the targets. The barge was loaded with mooring equipment and equipment used for the clearance works, including screening equipment and a 65t long-reach excavator. The barge was towed between locations using a multi-cat vessel. The vessel was used to assist positioning the anchors of the barge and will service the barge operations. The positions of the barge were based on a grid system that was established prior to the works.
The 2025 scope of work included 24/7 general dredging assistance, anchor handling, and floating line handling. This marked the second consecutive season that Leask Marine has delivered a wide range of dredging activities at the port, further supported by our on-call diving team, ready to provide rapid backup whenever needed.
The Ardersier 450-acre Energy Transition Facility is set to become Scotland’s largest facility on the North Sea coast for the deployment and servicing of offshore wind installations, an exciting development that we are proud to help bring to life.
Fair Isle & Grutness
The Leask Marine team at Fair Isle successfully completed dredging operations in support of our clients BAM Nuttall and Shetland Islands Council on the Fair Isle Ferry Replacement Project.
The scope of works involved pre-construction dredging of Fair Isle Harbour, where our team utilised a flattop barge and a long-arm excavator to remove sand, overburden, and bedrock to reach the required charted depths. The spoil was removed using a split hopper barge and transported to the designated disposal ground.
Following the completion of works at Fair Isle, the team mobilised all resources to the Grutness Ferry Terminal on Shetland, where we were commissioned to carry out further pre-construction dredging in preparation for upcoming harbour facility upgrades.
Leask Marine’s civil engineering team were contracted to carry out all marine based engineering and construction activities for the multi-million pound Stromness outfalls project in Orkney on behalf of Scottish Water.
This extensive project involved the Leask Marine civil engineering team, multiple vessels and crews, commercial civil diving team and shoreside construction work.
The team excavated outfall trenches, welded outfall piping, laid and buried the pipelines, laid pipeline protective concrete mattresses, rebuilt infrastructures such as market posts, slipways, street lighting and access paths.
