Glass Options

Nobody takes energy efficiency more seriously than Andersen. That’s why we offer multiple high-performance glass options that make it possible to get Andersen® windows and patio doors that are ENERGY STAR® certified, no matter where you live in the country.

Choosing The Right Glass

Most people can enjoy optimal energy performance and comfort with our standard Low-E/Low-E4® glass offerings. Low-E (‘low-emissive’) glass reflects heat in the summer and helps keep heat inside in the winter, making this a good choice in climates where both heating and cooling costs are a concern. 

Additional glass performance options include SmartSun™ glass that blocks 95% of the sun’s harmful UV rays and PassiveSun™ glass that brings the heat from sunlight into your home. Check with your Andersen dealer for glass options that make Andersen products ENERGY STAR® V 6.0 certified in your area.
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Glass Performance Options

Low-E / Low-E4® Glass

Most people can enjoy optimal energy performance and comfort with Low-E/Low-E4® glass. Low-E glass reflects heat in the summer and helps keep heat inside in the winter, making this a good choice in climates where both heating and cooling costs are a concern. 

Ideal for:
All Climates

Available on: Low-E glass is available on all Andersen products.

SmartSun™ Glass

SmartSun™ glass gives you the benefits of Low-E glass, plus it helps shield your home from the sun’s heat and filters out 95% of harmful UV rays while letting sunlight shine through.

Ideal for: All Climates

Available on: SmartSun™ glass is available on all Andersen® products.

Sun Glass

Sun glass offers outstanding thermal performance with a subtle tint that blocks out even more heat from the sun.  

Ideal for: Southern Climates

Available on: E-SeriesA-Series400 Series, 200 Series and 100 Series products.

PassiveSun® Glass

If you live in a cold climate, PassiveSun® glass allows the sun to heat your home.

Ideal for: Northern Climates

Available on: PassiveSun® glass is available on all Andersen® products.

Triple-Pane Glass

An extra pane of glass helps keep more heat in and cold air out, making this our most energy-efficient glass option. Perfect for colder climates where more months of the year are spent heating the home.

Ideal for:
Northern Climates

Available on: E-Series and A-Series products.

Select Andersen® A-Series windows are recognized as Most Efficient of ENERGY STAR® in 2021. Specific glass options apply.

Dual-Pane Glass

Clear dual-pane glass offers basic thermal performance. It’s available on select Andersen products in situations where codes allow its use. See your local code official for requirements in your area.

HeatLock® Technology

HeatLock® coating can be added to most of our glass options and reflects heat that likes to escape your home.

Energy Performance Details

Center of glass performance only. Ratings based on glass options available as of June 2021.

More details

Info Sheet

Explore glass options by climate, energy efficiency, light and more.

Additional Glass Options Info Sheet

Explore the availability of new options like satin etch glass and colored glass spacers.