Andersen Fibrex Windows Pros & Cons

Andersen Fibrex Windows Pros and Cons

The window industry continues to innovate to offer homeowners products that are eco-friendly and reduce their energy bills. Andersen’s Fibrex® windows are one such example. 

In this post, we’ll tell you about:

What are Fibrex windows?

Fibrex® windows refer to Andersen’s 100 Series windows. The window frame and its operable parts are made from a blend of wood fibers and thermoplastic polymer, which creates a strong and energy-efficient window. 

The Pros & Cons


  1. Eco-friendly
  2. Low-maintenance
  3. Blocks thermal transfer
  4. Durable
  5. Beautiful color and frame profiles


  1. More expensive than vinyl windows
  2. Exclusive to Andersen

Benefits of choosing Fibrex® windows

Fibrex® windows have lots of benefits including those that go beyond being a high-quality and dependable product. 


As the world continues to shift toward implementing environmentally sustainable practices so is Andersen with Fibrex®. This composite material is made by repurposing wood and plastic fibers that would otherwise go to waste. 

Additionally, Andersen is able to reduce its VOC emissions(↗) because they are not required to treat the wood regrind with preservatives.

DOWNLOAD: Andersen’s Green Record(↗) 


Unlike wood windows, Fibrex® windows don’t require regular maintenance to sustain their performance. An occasional wash or wipe down will keep Fibrex® windows looking good and gives you an opportunity to spot any unnoticed problems.

Blocks thermal transfer

Fibrex® blocks the transfer of heat and cold to keep your home at a consistent temperature even when the weather changes. According to Andersen(↗), Fibrex® “blocks thermal transfer nearly 700 times better than aluminum” ultimately helping you reduce your heating and cooling bills. 


Fibrex® windows are strong and retain their stability and rigidity regardless of climate. They experience less thermal expansion than windows made from other materials so weathertight seals stay weathertight. Additionally, Fibrex® won’t rot, decay, flake, blister, peel, or corrode.

Beautiful color and frame profiles

The look of black on black windows is one of the biggest design style trends at the moment.  Our customers are a big fan of this look and they’re not alone. We asked Monica Batiz, of El Paso Window Co.(↗) why her customers are choosing Fibrex® over other materials and she said they choose Fibrex® because of the “durability and the look of the black-black” window. 

Andersen is one of the few manufacturers that offer windows with a black interior and black exterior. If this contemporary look is what you’re seeking, Fibrex® windows will meet your needs at an affordable price. The rest of Andersen’s 100 Series exterior color choices are warm neutrals that can be combined with color-matched interiors or with a classic white.

Drawbacks of choosing Fibrex® windows

There’s not much to say that’s negative about Fibrex® windows. With more than 100 years of history producing top of the line products, Andersen has established itself as the nation’s leading manufacturer of windows and doors. In addition to being one of North America’s best-known manufacturers, Andersen windows and doors are sold globally.

More expensive than vinyl

The biggest potential drawback to Fibrex® windows is that they are more expensive than vinyl windows. Brand recognition carries a premium but overall Fibrex® performs better than vinyl. Unlike Fibrex® windows, vinyl windows are manufactured by lots of companies which means the quality of the product varies because not all manufacturers provide the same level of craftsmanship as the next. 

Exclusive product

Because Andersen is the only manufacturer of Fibrex® windows you have to be careful about who or where you purchase Fibrex® windows and who you choose to install them. Installation is the most important part of your remodel–a bad installation can sometimes result in damage but it’s more likely that you’ll end up missing out on the energy benefits that your new or replacement windows should provide. 

We recommend working with a trusted Andersen Window Dealer, in the North Texas area that includes us, Brennan Enterprises, but if you live somewhere else you can use Andersen’s Dealer Locator(↗) to find a dealer close to you.

How much do Fibrex® windows cost?

The cost depends on the style, size, hardware, and glass package. Fibrex® windows are available at some big box stores but they come as-is off the shelf. Working with a dealer means the windows are custom ordered to fit your home and your specifications, plus, you’ll be working with a group of people that specialize in measuring and installing Andersen 100 Series Fibrex® windows.

Below is an example of the cost of a single Fibrex® window without installation. This example is of a single-hung window with a black/black finish – a popular choice for our customers.


Base Price

Size: 3’0” W x 5’0” H
Style: Single Hung
Color: Black Exterior/Black Interior
Glass: Low  SmartSun High Performance
Grids: Colonial Divided Light with Spacer
Extra: Insect Screen
Hardware: Black Andersen 100 Series hardware



To learn more about Andersen’s 100 Series Fibrex® windows and their other product offerings visit our Andersen product pages.

We offer in-home consultations to homeowners in the North Texas area, if you would like to schedule a consultation for a FREE estimate please give us a call at 817-860-9767 or submit this form to have one of our representatives reach out to you.


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