ENERGY STAR® QUALIFIED WINDOWS AND PATIO DOORS
Clear solutions for
maximum comfort
Choose ENERGY STAR® qualified windows and patio doors to save energy and enjoy greater comfort!
Greater savings, efficiency and comfort!
- +You can save up to 10% on heating costs if you replace all your windows with ENERGY STAR® qualified models.
- +Windows and patio doors bearing the ENERGY STAR® symbol are among the most energy-efficient in their category. They’re 20% to 40% more efficient than conventional models.
- +Enjoy greater comfort: less condensation in cold weather and better protection against sun damage to furnishings, thanks to UV filtering.
˲ Choosing the right ones
Did you know?
- +Up to 25% of a home’s heating losses take place through and around windows and patio doors.
- +You’ll be living with your decision on new windows for at least 20 years—One more reason not to waste energy.
Frequently asked questions
ENERGY STAR® qualified product |
Conventional product |
| Double or triple glazing with low-emissivity (“low-e”) glass, letting little heat escape | Double glazing with regular glass |
| Inert gas such as argon or krypton in sealed unit | Air in sealed unit |
| Warm-edge (made of low-conductivity composite material) | Aluminum |
ENERGY STAR® qualified products don’t necessarily cost more than conventional products. When they do, the money you save on heating should quickly cover the extra cost. In addition, your ENERGY STAR® qualified windows and patio doors can help increase the resale value of your home.
When you buy ENERGY STAR® windows or patio doors that are qualified for the zone you live in, you know you’re getting a highly energy-efficient product. If the product is qualified for a colder zone, you’ll save even more on heating.
Because new homes often have a large floor area and many large windows, owners have a lot to gain by selecting the most energy-efficient products available. If you’re having a house built, ask the builder to put in ENERGY STAR® qualified windows and patio doors.
To maximize your energy savings, have your new purchases installed by a professional. An experienced installer will be able to minimize heat loss and air infiltration around the frames. Most window retailers offer installation services.