• Low Emissivity Windows

    ENERGY STAR® qualified windows not only can save you money, but also help improve your comfort, cut drafts and reduce fading of interior furnishings.

What is Low Emissivity?

Thanks to advances in technology, today’s ENERGY STAR® certified windows, doors, and skylights offer greater savings than ever before with such products as low emissivity (low-E) glass.

Low-E glass is made with a metallic coating on the inside of the insulating glass unit. This lowers the window’s ability to transfer heat and saves energy without compromising visibility.

The low-E coating also reduces fading by up to 75% by reflecting long-wave light rays that carry heat and UV.

shop ENERGY STAR® windows

What is your average monthly heating/cooling bill?

ENERGY STAR® qualified windows can help reduce your energy bills by 23% on average, depending on where you live. Savings vary by region. The greatest savings tend to come from the areas with hot summers, cold winters or both.

Take the Home Efficiency Audit


3 EPA Wins From Home Depot in 2017!

Home Depot’s commitment to sustainability was recognized 3 times by the EPA in 2017! Click here to learn how our energy efficient product assortment was recognized by ENERGY STAR for…

View all previous blog posts »


We all think of pretty flowers and a manicured lawn when we think of curb appeal, but what about upgrading or updating your windows?   Updating your windows and exterior doors is an investment, but a smart one that saves you energy and gives your home a fresh look that will last a lifetime.

Energy Star® Products Sold
The number of applicable ENERGY STAR® certified products sold in our U.S. stores and online since 2006.
Electricity Saved in 2017
The amount of electricity saved in kilowatt hours (kWh) last year based on the number of applicable ENERGY STAR® certified products sold.

*This number assumes that the products sold are replacing non ENERGY STAR® qualified products
Dollars Saved in 2017
The amount of money saved last year based on the amount of electricity saved from the number of applicable ENERGY STAR® certified products sold.
Homes Lit for One Year
The number of homes that the electricity saved could light for one year.

*This number assumes that the average home consumes 1,527 kWh a year for lighting.
The above numbers are based on averages and certain assumptions. Click on a ticker for details.

Look for energy-efficient low emissivity windows at The Home Depot

If you're going green, look to The Home Depot. We pride ourselves on being environmentally friendly and offer many different eco options. Your windows prove no exception. Estimates vary from region to region, but window replacement with ENERGY STAR® qualified windows can help reduce your energy bills by as much as 24%. These green windows not only can help you save money but also help reduce greenhouse gas emissions. For any home improvement project or “green need,” go to The Home Depot for green solutions.