Can Do. Will Do.

WARNING: You have entered a "Can Do. Will Do." zone.
Can Do. Will Do attitudes only beyond this point.

Count on us to keep your blades turning.

We provide specialised jack-up services for replacing major components on offshore wind turbines.

Offshore Wind  |  WTGs rescued: 81
It's a good challenge –  helping the world one turbine at a time.

Anders Nielsen, Project Manager

Anders Nielsen, Project Manager

Years lifting: 18  |  Vessel: J/U WIND
The technicians in those towers rely on my skills, and I like to deliver.

Søren Nielsen, Crane Operator

Søren Nielsen, Crane Operator

Years at sea: 47  |  Vessel: J/U WIND
My crew and ship are ready, willing, and able when you need us.

Gullbrandur Olsen, Captain

Gullbrandur Olsen, Captain

Plan your O&M future with us.

Armed with practical know-how and insightful expertise gained from succesful service of more than 400 wind turbines in 19 different offshore wind farms, we can help you plan your future O&M strategy.

Strong financial backing and a track record you can depend on!


WTG's serviced

Turbines, blades, gear boxes, generators
transformers, shafts, bearings

years in business

Providing offshore services
above and below the sea

wind farms

From the Baltic Sea
to the Irish Sea.
Deep to shallow - any seabed


DBB Jack-Up provides specially designed vessels that bring flexibility and efficiency to replacing major components on offshore wind turbines.

With the average offshore wind turbine size predicted to reach 6 MW by 2020,  vessels need to be designed for an even more demanding future.

All of our experience and know-how gained from service and major component replacements on more than 400 wind turbines has influenced the design and manufacture of these vessels.

The combination of these vessels and our insight gives us unparalleled flexibility to offer our customers the most efficient process.
We have the industry’s first self-propelled, heavy-lift barge with a permanently mounted, telescopic crane capable of working at a height of 100 metres - J/U WIND.

Furthermore, we have two more purpose-built jack-up vessels - J/U WIND SERVER and J/U WIND PIONEER -  capable of servicing even larger turbines in deeper waters, higher winds and on a variety of seabeds.
Jack-up vessels
Jack-up vessels
Made for offshore wind O&M

Effective and early planning of operations and maintenance processes can help reduce lost power production by up to 60 per cent

Our O&M professionals bring thousands of hours of practical experience in all aspects of O&M, from crew transfer to component replacement to health and safety measures.

We also manage Provision of Appointed Persons, seafastening design and MWS approvals.

Not a blade is left unturned when you plan your O&M future with us.
Ask us to help you save time and money in planning your O&M strategy and processes. In addition to long-term strategic planning, we can help with:

•  site-specific assessments
•  leg penetration analyses
•  maritime project management
•  lift planning and supervision

O&M planning
O&M planning
Plan your O&M future with us
For offshore wind decommissioning operations, we offer tailor-made solutions for removal of met masts, wind turbines and foundations. 

All operations are executed with a high focus on safety, cost efficiency and as little environmental impact as possible.

DBB Jack-Up also offers offshore installation support services such as commissioning of turbines and offshore substations.

Using jack-up vessels for installation support has a number of advantages including: access to cranes, a stable platform, highest safety and comfort of living quarters, swift repositioning by use of vessel’s DP system, large deck space for storage, workshop and stores facilities below deck.

Combined with the experience and skills of the DBB Jack-Up organisation, our purpose-built vessels offer a clear edge to the available alternatives.

Our team handles the whole process from planning of the safest and most sustainable decommissioning method to recycling of the removed components.
Expanding our business into decommissioning and installation support services

We are serious about ensuring offshore wind is a truly viable option for delivering to the world’s energy needs.

Massive investments have already been made in offshore wind infrastructure, and effective operations and maintenance of this infrastructure is critical in ensuring the industry delivers on its promise.

Through the work we do and the services we provide to the industry, we are intent on helping the industry reduce the costs of energy production by maximising operating time.
But there is work to be done. The cost of energy from offshore wind needs to be reduced by 40 per cent by 2020 from 2014 levels. Innovative and long-term strategic change and investment is required.

Asset owners, wind turbine manufacturers and vessel owners all have a part to play.
Our strategic purpose
Our strategic purpose
We believe in the future of offshore wind energy

Find out how we can help improve your O&M



J/U WIND is the industry’s first self-propelled, heavy-lift barge with a permanently mounted, large-scale, telescopic crane capable of working at a height of 100 metres. With a length of 55 m and breadth of 18 m, she can operate at a maximum depth of 35 m.
Download vessel specifications for WIND

J/U WIND PIONEER is a 50 x 28 m jack-up barge,
capable of lifting up to 232 tonnes and designed to operate in depths of up to 35 m.

Download specifications for WIND PIONEER

J/U WIND SERVER is our newbuild jack-up barge. At 80 m in length and 32 m in breadth, she is capable of lifting 400 tonnes and operating in depths of up to 45 m. She is equipped with a DP2 propulsion system.

Download vessel specifications for WIND SERVER




We are here to help our customers achieve their energy production goals. Although we demand a lot of ourselves and our equipment, we do not compromise on the safety of our people or our customers at sea.

Creating a safety culture requires constant attention, especially when conditions can present unexpected challenges. Every day, in our planning onshore and work at sea, we strive to provide optimal conditions for a safe work environment.

Safety thinking needs to be applied to every situation offshore.
DBB Jack-Up’s leadership is building a culture based on a shared vision of a safe work environment in the offshore wind industry.
Safety culture
Our way of working gives you peace of mind



We have defined policies for safety and occupational health, quality, environmental protection and pollution prevention and our procedures ensure that we comply with our policies, legal requirements and our customers’ requirements.

Our management system is certified towards the ISM 2014 Code, ISO 9001:2008, ISO 14001:2004 and OHSAS 18001:2008 and audited annually by Bureau Veritas.

We constantly strive to improve the offerings to our stakeholders to improve safety, environmental protection and production efficiency.
Management systems
Our systems document our capabilities


Reducing the cost of energy from offshore wind is our driving force. We are vigilant in understanding what brings value to our customers and how they can gain more from their investments.

Not only are we investing in the people and the equipment to meet the needs of the market today and tomorrow, but we are also investing in sharing knowledge and experiences throughout the industry.

But we can’t solve all the industry’s challenges alone. It will take cooperation throughout the supply chain if the industry is to live up to its potential of delivering sustainable, cost-effective energy.

Find out more at

Join likeminded professionals on



Find out how we exchanged three gearboxes at the Scroby Sands wind farm as E.ON launched its new maintenance strategy.
Download case story


DBB Jack-Up is a specialised operations and maintenance service provider to offshore wind farm owners and turbine manufacturers.

Our jack-up vessels provide cost-efficient and flexible solutions for exchanging major components of offshore wind turbines. And we provide strategic planning services to help reduce the costs of operating offshore wind farms.

With a solid track record gained from service and major component replacements on more than 400 wind turbines in 19 different offshore wind farms, DBB Jack-Up is in a strong position to contribute to the continued development of the offshore wind industry.

DBB Jack-Up was established in 2008 as a company within the DBB Group, based in Aarhus, Denmark. The DBB Group was founded in 1989 and, in addition to offshore wind turbine operations and maintenance services, provides salvage and subsea inspection services.



The right kind of employer

At DBB Jack-Up, our goal is to help wind farm owners across northern Europe operate their offshore wind farms safely and efficiently. Just as we are determined, ambitious and passionate about contributing to the future of renewable energy, we are honest and helpful in the way we deal with our customers. If we can do it, we will do it.

From time to time, we are looking for talented and ambitious individuals who can contribute to the success of our company and to the continuing development of offshore wind energy.

Interested in working on one of our offshore jack-up vessels?
Please send your application to

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"Thank you, your team and the ‘family’ on board the vessel WIND for a fantastic job assisting with the three gearbox exchanges. This was a great experience for the site and DBB contributed massively to this."

Keith Cooke, Operations Manager, Scroby Sands Wind Farm

"I would like to send a special thank you to the team at DBB. It has truly been a pleasure. We succeeded in completing the task as quickly as physically possible."

Michael Bay Christensen, MHI Vestas Offshore Wind

“I’ve been extremely impressed in the way DBB Jack-Up has responded to emergent requests and particularly how they contributed to the Marine Logistics meeting. DBB Jack-Up is very ambitious successfully collaborating with Siemens on a sustainable basis and not just for the immediate benefit of a charter fee."

Daniel Shore, Assistant Project Manager, Siemens Service Wind Power