Windows, doors & skylights

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Buy ENERGY STAR® to save you money!

Even though windows, doors and skylights do not consume energy, they can be a significant source of energy loss. If you’re in the market for windows, choosing ENERGY STAR certified models can save you an average of 8% on your energy bills as compared to a standard window. And windows that qualify for the ENERGY STAR Most Efficient designation are up to 40% more efficient than a standard window.

ENERGY STAR certified doors and skylights are also available to complement certified windows and add to your energy savings. Saving energy saves money and reduces your carbon footprint.

How to choose energy efficient windows


How to choose energy efficient windows

VISUAL: Mom looks unhappy next to an old window and is holding a warm drink because she’s cold.

Is your home drafty?

VISUAL: Dad is struggling to open an old window.

Are your windows hard to open or close?

VISUAL: A child is looking through a window with condensation build-up between the panes.

Do they have condensation buildup? 

VISUAL: Mom is shopping at a store for new windows. Camera moves to the ENERGY STAR Windows Display. 

Sounds like it's time for new ENERGY STAR certified windows.

VISUAL: Text appears on the ENERGY STAR Windows Display: “4 EASY STEPS”. Camera pulls back through the window of the store so that you see the store from the outside.  Camera continues to pull back as you see Mom driving away from the store.

Here are 4 easy steps to select energy efficient windows to make your home more comfortable.

VISUAL: Camera follows Mom’s car as she is driving home. A panel slides in showing “Step 1”.

STEP ONE: Look for the ENERGY STAR symbol

VISUAL: Mom continues driving and arrives home (view from the backyard). A raccoon walks up to the camera and gets startled. The ENERGY STAR Most Efficient logo appears. Facts from the script appear as the narrator says them (“SAVE 8% ON YOUR ENERGY BILLS”; “40% MORE EFFICIENT”). 

ENERGY STAR certified windows can save you an average of 8% on your energy bills.

Better yet, windows with the "ENERGY STAR Most Efficient" designation are up to 40% more efficient than standard windows.

VISUAL: A diagram of an ENERGY STAR window appears.  Features about the window appear as labels around the diagram (“low-e glass coatings”; “insulated frames and sashes”; “inert gases between the panes”).

ENERGY STAR certified windows are better insulated, through things like:

  • low-e glass coatings;
  • insulated frames and sashes; and
  • inert gases between the panes

VISUAL: The Panel for “Step 2” appears.

STEP TWO: Know your climate zone

VISUAL: A map of Canada appears.  The 3 ENERGY STAR zones are highlighted in different colors as a legend appears showing the colours and corresponding zone names: “ZONE 1”; “ZONE 2”; “ZONE 3”.

There are three Canadian climate zones: 1, 2 and 3. Choose a window rated for the zone you live in.

VISUAL: An animated ENERGY STAR label appears showing the ENERGY STAR zone and performance ratings changing for an increasingly efficient window.

For even more efficient windows, choose a window certified for a higher zone than your own.

VISUAL: Mom is at her computer looking up her climate zone at

You can look up your climate zone at

VISUAL: The panel for “Step 3” appears.

STEP THREE: Consult with a supplier about getting the right windows for your home

VISUAL: The back of the house appears.  The screen splits to show the animated ENERGY STAR label with the ENERGY STAR zone and performance ratings changing for an increasingly efficient window.  The label’s box for Solar Heat Gain Coefficient highlights.

For example, do you have an older home? You'll likely want windows with medium or high solar gain to transmit the sun's heat in cold months.

VISUAL: Wind gusts animate as trees sway in the wind around the house.  A flock of geese fly in the sky.  Text from the script appears (“COMPRESSION SEAL”; “CASEMENT & AWNING WINDOWS”).

Is your home exposed to wind gusts? You'll likely need a compression seal, found in casement and awning type windows. 

VISUAL: The panel for “Step 4” appears.

STEP FOUR: Hire a professional

VISUAL: A Window Installer’s van is driving on a road.  The van has an ENERGY STAR logo that says, “WE SELL ENERGY STAR”. The van passes a moose eating near the road.

Trained installers ensure your windows will perform their best.

VISUAL: Mom is at her computer searching for window installers.  Text from the script appears (“REPUTABLE INSTALLERS”; “3 QUOTES”).

Do your research to find reputable installers then get 3 quotes to install your ENERGY STAR certified windows.

VISUAL: The back of the house appears.  The camera pans up to the sky where the text for the 4 steps appears.  A red cardinal flies and lands on the text and then flies away.

Follow these 4 simple steps to select the perfect ENERGY STAR certified window that will save energy, save money and protect the planet.

VISUAL: The NRCan ENERGY STAR Vanity URL appears ( Copyright screen and then Canada Wordmark screens on white background.

For more information, visit

Key features

  • Special coatings (known as low emissivity coatings, or “low-e glass”) and insulated frames and sashes mean your window will be more comfortable to sit beside and there will be reduced condensation on the glass.
  • Available triple glazing for better exterior noise reduction and even more energy savings.
  • Special inert gases between the glass panes rather than just air for better insulation.
  • A label to indicate which of the three Canadian climate zones the windows are meant for.
Windows, doors and skylights

Start your research using the searchable product lists:

Helpful tips

  • Know your climate zone and ask for products that are certified for it. Save even more on energy costs by buying a product certified for a colder zone than where you live.
  • Make sure that your quotation or invoice actually says ENERGY STAR on it and lists which of the 3 Canadian climate zones the product is certified for.
  • Hire a professional to install your windows, doors or skylights – trained installers ensure your windows, doors or skylights will perform their best.
  • On the eastern and northern sides of your house, install windows with higher insulation values to reduce heat loss.
  • Educate yourself. Learn more about factors affecting energy efficiency here, including radiation, conduction, convection and air leakage.

What’s in a label?

The windows, doors and skylights label in Canada has the following components:

  • The ENERGY STAR symbol means the model is highly energy efficient.
  • The ENERGY STAR Climate Zone(s) map or indicator shows you the areas in Canada that the window, door or skylight is certified for.
  • Certified energy performance values as verified by a certification body.


All ENERGY STAR certified products are tested to meet strict efficiency specifications and are certified by an independent third party. They perform the same as or better than standard products without compromising performance in any way.

Other Information

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