Certifications and Awards


  • Certified by the National Fenestration Rating Council (NFRC) (rates thermal performance)
  • Meets or exceeds Canadian Standards Association guidelines (CSA) (structural performance and public safety)
  • Certified by the American Architectural Manufacturers Association (AAMA) (structural performance and public safety)
  • Certified by the Energy Star program (energy savings) in Canada and the United States
  • Certified by Intertek (quality and safety standards)
  • Member of the Window and Door Manufacturers Association Hallmark Certification (WDMA) (quality standards)
  • Member of the Efficient Windows Collaborative (energy efficiency)


Gaulhofer has been awarded the German RAL seal of quality. This award is given for high product quality and service excellence, color precision and environment-friendly products. Gaulhofer has won this prestigious award for its wood and wood/aluminum windows and doors. To us this is one of the most prestigious awards in our industry. To you it is the greatest possible assurance of receiving uniformly high quality products and service.