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Fibrex® Composite

Andersen 100 Series Windows

The 100 Series is built from Andersen's exclusive Fibrex® material — a composite of roughly 40% reclaimed wood fiber and 60% thermoplastic polymer. It's twice as strong as vinyl, resists fading, and holds dark colors beautifully, giving you a clean, modern window at a smart price.

100% Fibrex® composite2× stronger than vinylLow maintenanceENERGY STAR® certified
Why Andersen 100 Series

Built to perform, made to last

Emerald City Energy is an authorized Andersen installer serving the Puget Sound since 1997. Here's what sets the Andersen 100 Series apart.

Twice as strong as vinyl

Fibrex frames are rigid and durable, allowing slimmer profiles and more glass than ordinary vinyl windows.

Dark colors that last

Unlike vinyl, Fibrex holds rich, dark exterior colors without warping or fading in the Northwest sun.

Energy efficient

Insulating frames and High-Performance™ Low-E4® glass help cut energy bills and block UV.

Sustainably made

Fibrex reuses wood fiber that would otherwise be waste — strength with a smaller footprint.

Styles & Configurations

Andersen 100 Series window & door types

A range of operating styles to fit every room, view, and architectural look — all available through Emerald City Energy.

Andersen 100 Series casement window
Casement
Andersen 100 Series awning window
Awning
Andersen 100 Series single-hung window
Single-Hung
Andersen 100 Series double-hung window in black
Double-Hung
Andersen 100 Series gliding window
Gliding
Andersen 100 Series picture window
Picture
Andersen 100 Series gliding patio door
Gliding Patio Door
Frequently Asked Questions

Andersen 100 Series questions, answered

What is Fibrex® material?
Fibrex is Andersen's patented composite made of about 40% reclaimed wood fiber and 60% thermoplastic polymer. It combines the strength and insulating value of wood with the low maintenance of vinyl, and it's roughly twice as strong as vinyl alone.
Is the 100 Series better than vinyl windows?
For most homeowners, yes. Fibrex frames are stronger and more rigid than vinyl, allow slimmer sightlines with more glass, and hold dark colors without the warping or fading common to vinyl — all at a comparable price point.
What colors are available?
The 100 Series offers a curated palette of interior and exterior colors, including popular dark shades like black and bronze that Fibrex can hold long-term without fading.
Is the 100 Series energy efficient?
Yes. 100 Series windows can be configured with Andersen's High-Performance™ Low-E4® glass and meet ENERGY STAR® guidelines for our Northern climate zone, helping lower heating and cooling costs.
Does Emerald City Energy install the 100 Series in my area?
Yes. We're an authorized Andersen installer serving Seattle, Tacoma, Bellevue, and the greater Puget Sound. Every installation is handled by our own trained crews and backed by our workmanship guarantee.
Compare

How the Andersen series compare

Not sure which line is right for your home? Here's a quick look at the full Andersen lineup.

SeriesMaterialBest forPrice tier
100 SeriesFibrex® compositeModern, low-maintenance, value$$
200 SeriesWood / vinyl exteriorAffordable real-wood warmth$$
400 SeriesWood / Perma-Shield®Best overall — most popular$$$
A-SeriesComposite / woodBest performance & architecture$$$$
E-SeriesWood / aluminumMaximum customization$$$$$

Explore other Andersen series

Ready for Andersen 100 Series?

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What our customers are saying

Real reviews from Seattle–Tacoma homeowners who chose Emerald City Energy for their Andersen windows and doors.

4.9
★★★★★
Average Rating
600+
 
Combined Reviews
28+
 
Years in Business
Installed by our own crews
Authorized Andersen dealer serving the Puget Sound since 1997
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Telephone Availability

Showroom Hours vary by location.

Monday
9:00 AM – 5:00 PM
Tuesday
9:00 AM – 5:00 PM
Wednesday
9:00 AM – 5:00 PM
Thursday
9:00 AM – 5:00 PM
Friday
9:00 AM – 5:00 PM
Saturday
9:00 AM – 5:00 PM
Sunday
9:00 AM – 5:00 PM

Payments & Financing

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We accept Visa, Mastercard, Discover, American Express, Checks, and Cash. We offer financing options on new windows and doors.

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WA Contractor License
EMERAI*034KG

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Tukwila Showroom
Open M–F
Mon – Fri: 9:00 AM – 5:00 PM
Bothell Showroom
Open M–F
Mon – Fri: 9:00 AM – 5:00 PM
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By Appointment
By Appointment Only

Our Service Area

Seattle, Ballard, Capitol Hill, Freemont, Green Lake, Greenwood, Laurelhurst, Madrona, Magnolia, Madison Park, Northgate, Queen Anne, Ravenna, University District, Wallingford, Wedgewood, West Seattle, Tacoma, Bellevue, Kent, Everett, Renton, Federal Way, Kirkland, Auburn, Redmond, Marysville, South Hill, Sammamish, Shoreline, Lynnwood, Lakewood, Burien, Bothell, Edmonds, Puyallup, Lake Stevens, Issaquah, University Place, Graham, Spanaway, SeaTac, Des Moines, Maple Valley, Mill Creek, Mercer Island, Mountlake Terrace, Kenmore, Union Hill-Novelty Hill, Cottage Lake, Martha Lake, Bonney Lake, Tukwila, Covington, Mukilteo, Mill Creek, Woodinville, Snoqualmie, Edgewood, Lake Forest Park, Newcastle, Gig Harbor, Lake Tapps, Sumner