Altena Boat Care is: HISWA Certified Yachtservice 

Your yacht must be well maintained. Not only from a safety point of view, but also looking at the environment. Then you also want to make sure that the company that carries out work on your yacht is a professional company. A company with expertise. Yacht service companies can therefore obtain the ‘HISWA Certified Yacht Service” quality mark. Thanks to fixed protocols and controls, the water sports enthusiast is assured of careful and professional work according to quality standards. 

Yacht service companies offer many different services: winter storage, painting, cleaning of the hull, engine maintenance and repair, maintenance and repair to electricity and gas installations and much more. Each of those activities is a specialty in itself. Many HISWA yacht service companies offer all these services at a professional level. The HISWA Certified Yachtservice company delivers quality, which is demonstrable because these companies work according to established protocols. This way their working method is verifiable and you know what you are getting. 

The HISWA Certified Yachtservice companies work with protocols for:

  • Engine maintenance
  • Winter storage
  • Gas installations
  • Underwater ship
  • Marine diesel maintenance
  • Safe Lifting 
  • Maintenance vessel
  • HISWA Port and Wharf Regulations 

The certifies HISWA companies are checked and assessed by an external organization. For example, each participating company is visited by an inspector to check whether all the conditions set ware met. This prevents unprofessional situations, which activates are associated with them and what the customer can expect. 

Of course, the HISWA General Terms of Delivery Agreements will also be applied and orders will be confirmed to you. The HISWA Conditions have been drawn up in consultation with consumer parties and thus ensure clear agreements. Very clear! 


  • Have regular maintenance carried out, this reduces the risk of malfunctions, avoids high costs and unnecessary environmental impact.
  • A well-maintained ship is a safe ship.
  • Indicate as precisely as possible which job must be carried out. 
  • Ask for a clear quotation of the work to be performed. 
  • Make clear agreements about the scope of the work and the delivery time.
  • For major jobs, ask the entrepreneur to take a look on board.
  • Ask if the company is a HISWA member! Then you know whether the HISWA General Terms and Conditions are used. 

Altena offers much more!

Winter storage.

Both indoor (heated) and outdoor storage. The total area of the business premises is 10.000 m2. The buildings in which our workshops, offices, canteen and warehouse are housed have an area of 4.000 m2.

Altena Boat Care supplies an extensive program from maintenance, painting of the installation of equipment. 


Custom-made interior and expertly sealed teak decks give the woodwork a thoughtful and attractive appearance. 


We provide the complete upholstery of the interior, where you can choose from fabric, leather, Alcantara, silk and nappa. 


Good preservation, obtained by blasting, two-component coating, two-component filler and a double topcoat, guarantees the preservation of your yacht.  

Steels and stainless work.

We can also carry out all types of renovations in our blasting department and also build complete hulls, of steel and / or aluminium. 

Request a quote without obligation, or visit our yard.