Building Energy works with builders, homeowners and governments to continuously raise the bar in sustainable construction.


We offer a range of services including building science consulting and energy modeling, to certification of new homes under Energy Star, LEED and Passive House, to blower door testing, on-site inspection and training.


We have been helping Canada build better homes for over 30 years, founded by building science pioneer Bruce Gough. Licensed architect, Mark Rosen, started with Building Energy in 2008 to gain an appreciation and understanding of the way houses are put together. Starting out as a site inspector, he is now the owner, and has helped develop software tools, sits on several advisory boards and continues to actively lead the industry towards positive change. We  now certify over 900 homes in the Ottawa-area per year.


235C Breezehill Avenue South
Ottawa, Ontario, Canada  K1Y 2J2