High-Performance Window Glass Solutions for Your Home

Renewal by Andersen of Long Island (and our parent company the Andersen Corporation) has a long-standing tradition of bringing home improvement products to the market that enhance our customers’ lives. We work hard to make sure our replacement windows and patio door projects not only don’t harm the planet, but that they actually make our environment healthier. This commitment to protect natural resources through rigorous environmental standards is part of why Andersen Corp received the 2019 ENERGY STAR® Partner of the Year – Sustained Excellence award.

But, installing Energy Star certified replacement windows does more than just help you save money on your heating and cooling bills – although that is something every Long Island homeowner can definitely appreciate. The glass option you choose when designing windows for your home may help you limit noise transfer, block harmful UV rays from prematurely aging your furnishing and reduce annoying glare in your home.

Here are some quick facts about high-performance, low-E4 glass options for replacement windows and patio doors to help you make wiser design decisions.

Why Low-E4 Window Glass Matters

You may be wondering if choosing low-E4 glass really matters when it is time to select individual replacement window elements. It does, and here is why.

Poorly performing windows account for a huge percentage of wasted energy that flows through a window as lost heat in the winter and unwanted heat gain during the summer.

SmartSun™ glass, the outstanding, high-performance, low-E glass option for Long Island homeowners, is 49 percent more energy efficient in winter and 70 percent more energy efficient during warm months compared to traditional single pane glass.

When our customers combine the awesome benefits of our exclusive Fibrex® composite window frame material with SmartSun™ glass, they enjoy a window with exceptional NFRC ratings that demonstrated high-performance and maximum energy efficiency in one low-maintenance package.

There are other glass options for the discerning replacement window shopper as well, including patterned glass that obscures the view and another low-E type called Sun Glass we recommend.

High Performance Low-E4 Sun Glass

Sun Glass is an excellent solution for people who struggle to control air conditioning bills during the warmest months on the Island. This popular glass uses a special glass coating applied during the manufacturing process to reduce visible light transfer. The technology contributes to the highest rating for solar heat gain, resulting in lower air conditioning bills and a more comfortable home during the summer.

Renewal by Andersen of Long Island has a special glass for every climate and every setting. With so many glass solutions available, you can have confidence that replacing your poorly performing home windows with modern, high-performance replacement windows you will maximize your savings potential and enhance the comfort and air quality in your home.

If SmartSun™ with HeatLock® Technology™ or high-performance low-E4® Sun Glass don’t seem to be the perfect glass solution for your home, consult with your replacement window brand specialist. Be sure to explain your concerns and specific requirements.

Schedule a Free In-Home Consultation with a Renewal by Andersen of Long Island Representative to Learn More About Our Glass Options

We understand you want window solutions that enhance energy efficiency and help you create comfortable, safe indoor spaces for your family. Your neighborhood Renewal by Andersen of Long Island replacement window and patio door representative can answer all your questions about low-E glass types and our exclusive, patented Fibrex® window frame material.

The glass patterns we offer provide a beautiful option to heavy curtains or drapes used for privacy. Schedule your in-home consultation by filling in the short form on this page or dialing (866) 609-5033 for immediate assistance during normal business hours.


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  • The Difference Between Replacement and New Construction Windows!
  • The Different Kinds of Frame Materials and What That Means to Your Windows’ Performance and Longevity!
  • How the Right Glass Can Save You Money on Your Heating & Cooling Bills!
  • The Critical Role Proper Installation Plays in the Performance, Durability and Warranty of Your New Replacement Windows!
  • What Features and Options are Important to You and What Role They Play in Your Ultimate Satisfaction Today, and for as Long As You Live in Your Home!
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