Specialist, bespoke products, high quality en well experienced are the key words for our company.
At Thormarine our key values are clearly visible in custom engineering, production and delivery of doors, hatches and windows for the overall maritime industry, offshore, offshore wind and construction and infrastructure projects.
Our Weathertight and watertight doors are type approved for position 1+2 according load line conventions and SOLAS convention, and all individual tested on pressure.

Our bespoke products are used for nearly all “closures on board” on commercial vessels, yachts, mega yachts, Tugs, Naval vessels, offshore constructions, (offshore) containers and the offshore wind industry.

Together with our dedicated sales team, supported by our engineers, we offer our customers a professional solution for nearly all watertight closures on board.

Watertight doors

Watertight hatches

DIN Toggle doors

A60 doors

BAIER Hatches


Manhole covers

Spare parts


Worldwide activities
We supply to nearly all parts of the world, for some countries we work together with local agents. Click on our world map to find a contact.

Recent projects

Ritz-Carlton Yacht
Thormarine Catalogus