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Wood Interior · Perma-Shield® Exterior

Andersen 400 Series Windows

The 400 Series is Andersen's most popular line and the benchmark for wood replacement windows. Natural wood interiors deliver warmth, strength, and insulation, while the Perma-Shield® exterior cladding makes them remarkably low-maintenance and weather-resistant — the best overall blend of performance, style, and proven durability.

Natural wood interiorPerma-Shield® exteriorMost popular Andersen line20-year glass warranty
Why Andersen 400 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 400 Series apart.

Warm wood interior

Beautiful natural wood inside, ready to stain or paint, with the strength and insulation only real wood provides.

Perma-Shield® protection

A rugged exterior cladding shrugs off rain, sun, and seasonal swings without painting or scraping.

More choices

The widest range of sizes, styles, exterior colors, grilles, and hardware of Andersen's clad-wood lines.

Proven performance

Decades of field-proven durability plus High-Performance™ Low-E4® glass options for real energy savings.

Styles & Configurations

Andersen 400 Series window & door types

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

Andersen 400 Series casement window
Casement
Andersen 400 Series awning window
Awning
Andersen 400 Series tilt-wash double-hung window
Tilt-Wash Double-Hung
Andersen 400 Series Woodwright double-hung window
Woodwright® Double-Hung
Andersen 400 Series gliding window
Gliding
Andersen 400 Series picture window
Picture
Andersen 400 Series bay window exterior
Bay & Bow
Andersen 400 Series specialty shape window
Specialty
Andersen 400 Series Frenchwood hinged patio door
Frenchwood® Patio Door
Frequently Asked Questions

Andersen 400 Series questions, answered

Why is the 400 Series so popular?
It offers the best overall balance Andersen makes: the warmth and strength of a real wood interior, a low-maintenance Perma-Shield® exterior, and the widest selection of sizes, styles, and colors — backed by decades of proven performance.
What is Perma-Shield® cladding?
Perma-Shield is Andersen's protective exterior covering over the wood frame. It resists weather, won't rot, and never needs painting, so the window keeps its looks with minimal upkeep.
How does the 400 Series compare to the 200 Series?
Both have wood interiors. The 400 Series uses a more durable Perma-Shield exterior and offers far more sizes, shapes, colors, and grille options, while the 200 Series is a streamlined, value-priced line with a vinyl exterior.
What's the difference between Tilt-Wash and Woodwright® double-hungs?
Both tilt in for easy cleaning. The Woodwright® has a more traditional, true wood look with a putty-style glazing profile, while the Tilt-Wash is a versatile, contemporary clad-wood option.
Does Emerald City Energy install 400 Series windows locally?
Yes. As an authorized Andersen installer, we fit 400 Series windows throughout Seattle, Tacoma, Bellevue, and the Puget Sound, installed by our own crews and backed by our 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 400 Series?

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

4.9
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600+
 
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Years in Business
Installed by our own crews
Authorized Andersen dealer serving the Puget Sound since 1997
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Showroom Hours vary by location.

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

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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
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Open M–F
Mon – Fri: 9:00 AM – 5:00 PM
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By Appointment
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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