Natural Resources Canada
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Office of Energy Efficiency Links


Personal: Residential


Windows, Doors and Skylights
(Fenestration Products)


Improving the energy efficiency of your home's windows, doors or skylights (known as fenestration products) can substantially improve comfort. It can also reduce your home's energy use and cut down on greenhouse gas emissions that contribute to climate change. Purchasing the best windows, doors and skylights means finding a balance between cost, ease of operation, maintenance, durability, attractiveness and energy efficiency.

Energy-efficient fenestration products will:

  • reduce your home energy costs by 7 to 12 percent
  • reduce or eliminate cold drafts
  • collect less condensation
  • reduce noise from outside

Energy Star Symbol


ENERGY STAR qualified windows, doors or skylights are among the most energy efficient products in their class.


Considerations for new homes or renovations:

Three common fenestration problems in existing homes:


The ENERGY STAR name and symbol are administered and promoted in Canada by Natural Resources Canada and are registered in Canada by the United States Environmental Protection Agency.