Memberships & Awards

Alpen HPP is committed to manufacturing and delivering highly energy efficient and premium quality window and door products. We ensure our windows meet the strictest requirements by actively seeking third party certifications and memberships that validate the quality of work we produce both in manufacturing quality and energy saving results.

We are honored to have won multiple accolades and awards from a variety of organizations recognizing our high performance products and our commitment to engineering windows that meet and exceed energy efficiency requirements for high energy savings.


American Architectural Manufacturers Association (AAMA) Membership
AAMA is a third-party organization that is a leading window industry source of performance standards and product certification. Each window we create is tested by AAMA to independently demonstrate our product’s performance and quality. When you buy super-insulating Alpen Windows, you can rest assured in knowing that you are getting high quality windows that meet and often exceed AAMA’s tests.

NFRC Member
NFRC is a non-profit organization that administers the only uniform, independent rating and labeling system for the energy performance of windows, doors, skylights, and attachment products. Their goal is to provide fair, accurate, and reliable energy performance ratings.

All of the window series we manufacture are tested by an accredited NFRC lab. The NFRC label we place on each and every one of our windows is proof that we are driven to provide super-insulating, highest performing windows and doors.


Passive House Institute US

The Passive House Institute US (PHIUS) is a consulting and research firm working to further the implementation of Passive House standards and techniques nationwide. Passive House refers to a rigorous but voluntary standard for super energy efficient buildings. The standard focuses on passive solar design, super insulation, advanced window technology, air tightness, and ventilation.

USGBC is a non-profit organization that certifies sustainable businesses, homes, hospitals, schools, and neighborhoods. USGBC is dedicated to expanding green building practices and education and its LEED® (Leadership in Energy and Environmental Design) Green Building Rating System™.

Each and every one of our windows contributes points to creating an energy efficient built environment.


2007 Top Ten green building products selection by BuildingGreen, the industry leader in green building products.