About us


Jochen Rohr
ENERGATE Sales: Region West - Mathias Häußler  ENERGATE Manager Kjell Hatlehol ENERGATE Sales: Region East

Energy efficiency MADE IN GERMANY

For generations our family-owned company, founded in 1919, has focussed on the production of sustainable, energy saving, high-quality windows and doors at our own factory in Speyer, Germany. We combine cutting-edge technology with specifically developed patents. Durability, comfort, safety, light-related design and a highly-efficient energy balance are values which are important to us.

Energy is a resource which is becoming more and more valuable. And that is the reason why we have decided to concentrate on the development and production of high-insulating and, therefore, energy-efficient windows and doors.

ENERGATE Sales: Region East

H Window Company, LLC® - Simply Revolutionary

H Window® is the North American distributor of Energate® windows and doors.
In 2002 the H Window Company® celebrated 15 years of operation in the United States.

In 2010 H Window® formed a partnership with Energate® and is looking forward to manufacturing Energate® windows in the United States in the near future.


H Window Company - Ashland, Wisconsin