Renewal by Andersen(R) Delivers Ease-of-Cleaning and Energy Efficiency with High-Performance Low-E4(TM) Glass

Now standard on all Renewal by Andersen® replacement windows and Frenchwood Patio Doors, new High-Performance Low-E4™ glass proves to be the next generation in insulated, energy-efficient, low-maintenance glass. Recently introduced by parent company Andersen Windows, Inc., High-Performance Low-E4™ glass is exclusive to Andersen (also spelled Anderson) products, including Renewal by Andersen® residential and commercial replacement windows and doors.

Once Andersen Low-E4™ Window Replacements are Installed, Homeowners in Northern Virginia (VA) Cannot Live Without Them.

Features of Andersen Low-E4™ innovative glass coating include easier cleaning, reduced dirt built-up, and reduced water spots by up to 99%. Once activated by sunlight, these features demonstrate energy saving technology at its best, helping to substantially reduce heating and cooling bills. Generally, Low-E4™ glass is 45 percent more energy efficient in summer and 35 percent more energy efficient in winter than standard dual-pane glass. Depending on where customers live, that can cut energy bills as much as 25%*.

With cold winters and warm, muggy summers, Northern Virginia (VA) and towns such as Fairfax, Annandale, Herndon, Falls Church, and Gainesville can dramatically benefit from Low-E4™ glass. When installed within Renewal by Andersen® replacement windows, Low-E4™ glass can make homes in this region feel comfortable year around.

Applied to one of the glass surfaces within the airspace, Low-E4™ transparent metallic coatings deflect radiant heat and let in visible light. Other features of the glass coatings include reduced glare and ultra-violet light by 83 percent for improved protection from fading for interior fabrics and furnishings.

“For over a century, Andersen has continually improved the performance of windows and doors. Renewal by Andersen® is pleased to be able to feature this latest breakthrough in glass technology” said Craig Evanich, president of Renewal by Andersen®. “Combined with Andersen’s patented low maintenance Fibrex® material and our exclusive start-to-finish process, Renewal by Andersen® offers a combination of products and experience that uniquely positions us to meet the window replacement needs of our customers.”

100 Years and Growing of Innovation in Window Manufacturing
The first to introduce insulated glass (1952) and Low-E™ glass (1983), Andersen has been at the forefront in glass innovation for over a century. Today, Andersen offers one of the largest window and door glass packages in the industry. A standard feature on Renewal by Andersen® windows and Frenchwood Patio doors, High-Performance Low-E4™ glass comes in multiple varieties including High-Performance, High-Performance Sun™, High-Performance tempered, High-Performance impact resistant, and High-Performance patterned glazings. For replacement windows in Fairfax, Gainesville, Annandale, Herndon, Falls Church, and Northern Virginia (VA), homeowners agree that when it comes to unlimited options, trusted manufacturing, and eco friendly products, Andersen Renewal is second to none.

Renewal by Andersen®, recognized as a leader in the window and patio door replacement industry, offers a nationwide network of retailers covering over 90 market areas. For a local retailer or more information, visit

* A study of identical homes comparing Low-E4™ to ordinary dual pane glass showed a 25% savings on cooling bills, 10% on heating. Savings may vary geographically.