Innovative condensation-free portholes
Would you like to make your boat more sustainable and improve the level of comfort on board? Then opt for the unique insulated polymer portholes from TOPwindows. Our portholes are condensation-free and available with double glazing: this ensures very high insulation value and comfortable indoor climate. They are easy to assemble for new build or as replacement aluminium portholes.

Advantages
Condensation-free and more comfortable
TOPwindows portholes are fitted with extra well-insulated polymer frames and are available with double glazing. This greatly improves the level of comfort on board your boat.
Convenience
Thanks to the clever clamping system, you can quickly open and close the hinged porthole in one easy step.
Easily interchangeable
Our portholes are interchangeable with your existing portholes and are easy to install.