Choosing the right door for your building is just as important as choosing windows, as they play a key role in building envelope performance. High performance doors will result in long-term savings on your energy bills, and our Commercial Building Envelope Program will pay up to 100% of the incremental cost over a standard door.

It’s important to consider U-value – the rate at which heat transfers through the door and frame. Your door supplier or contractor can help you choose the right door.

High performance doors have these features:

  • better core insulation;
  • thermally broken frame;
  • improved glazing (triple pane, better low-e coatings, argon fill, warm edge spacer).


  • long-term energy savings;
  • higher insulation value;
  • less potential for condensation;
  • small incremental cost compared to the overall cost of the door;
  • enhanced building durability and aesthetics.

Financial incentives (PDF, 240 MB) are available for single, glazed entry doors with up to 50% glazing (¼, ½ or ¾ lite) and with a U-value of less than 1.6 on doors of an existing building. Eligible projects receive $125/m2/U.