Andersen® 400 Series
Bay Windows
Beautiful Inside & Out. More Space. More Light.
Andersen Bay Windows extend outward to create added space, bring in more natural light and enhance your view. Built with premium materials and expert craftsmanship for lasting beauty, energy efficiency and performance. 400 Series bay windows feature all the individual qualities of Andersen’s double-hung and casement windows.
Turning possibility into reality
Performance
400 Series is Andersen’s most popular window line, proven through more than 50 years of real-world use. It pairs the natural beauty of a wood interior with a low-maintenance Perma-Shield® exterior that is vacuum-formed or extruded around the wood for a superior seal against the weather.
WARM WOOD INTERIORS
Real wood interiors in pine, maple or oak can be left natural, stained or painted to match your décor.
LOW-MAINTENANCE EXTERIOR
Durable Perma-Shield® exterior cladding never needs painting and stands up to sun, rain and snow.
DESIGN FLEXIBILITY
Choose from 7 exterior colors, a range of interior finishes, hardware, grilles and custom trim to create a bay that’s uniquely yours.
ENERGY EFFICIENT IN EVERY CLIMATE
Dual-pane glass comes standard, with Low-E4® and triple-pane glass upgrades available to help reduce heating and cooling bills.
TRUSTED BY CONTRACTORS
Andersen reports that 400 Series windows were rated the windows contractors trust the most in a 2024 survey.
SMOOTH, RELIABLE OPERATION
The double-hung or casement windows in your bay are built for years of easy, dependable operation.
SUPERIOR WEATHER RESISTANCE
Our weather-resistant construction seals
out drafts, wind and water so well that your home stays comfortable whatever the weather
QUALITY SO SOLID, THE WARRANTY IS TRANSFERABLE
Many other window and door warranties
end when a home is sold, but our coverage
— 20 years on glass, 10 years on non-glass
parts — transfers from each owner to the
next. And because it’s not prorated, the
coverage offers full benefits year after year,
owner after owner. So it can add real value
when you decide to sell your home
WOOD & PERMA-SHIELD® CONSTRUCTION
Andersen 400 Series bay windows combine a solid wood interior with Perma-Shield® exterior cladding. The wood provides natural warmth and insulating value, while the cladding is vacuum-formed or extruded around the wood to create a weather-tight, low-maintenance exterior. Select components use Andersen’s Fibrex® composite material for added strength and stability.
BUILT FOR STRENGTH & COMFORT
• A solid roof system supports the bay for lasting strength and durability
• Wood is a natural insulator that helps keep your home comfortable
• Perma-Shield® cladding seals out drafts, wind and water
• Proven through more than 50 years of real-world use
DESIGNED AROUND YOUR HOME
• 30° and 45° bays, plus 90° box bays with casement windows
• Double-hung or casement side windows
• Custom trim styles and head profiles
• Backed by one of the industry’s best limited warranties: 20 years on standard glass and 10 years on non-glass components, transferable to the next owner
Bay Window Options
Design your Andersen bay window your way
Exterior Colors
Low-maintenance exterior protects the wood from the elements.
Interior Wood Species
Choose a natural, stained or unfinished wood interior, or one of Andersen’s painted interior colors.
Colors shown are approximate. Ask your Galaxy consultant to see actual Andersen color and wood samples.
Why Homeowners Choose Andersen Bay Windows
Beautiful Inside & Out. More Space. More Light.
Built for Lasting Performance
Designed around the way you live
Structurally SoundBuilt with a solid roof system for strength and durability.
Premium InteriorsBeautifully finished wood interiors for a timeless look.
Quality HardwareCorrosion-resistant hardware for smooth, reliable operation.
Weather ResistantEngineered to resist the elements and stand the test of time.Specifications
Andersen Bay Windows
| Window Type | Bay |
|---|---|
| Frame Material | Wood, protected by a low-maintenance vinyl or Fibrex® composite exterior |
| Interior Finish | Pine, Maple or Oak (natural, stained or unfinished), or painted interior colors |
| Exterior Finish | White, Canvas, Sandtone, Terratone, Forest Green, Dark Bronze, Black |
| Glass | Low-E4® SmartSun™ Insulating Glass |
| Grid Options | Colonial, Prairie, Farmhouse & More |
| Configurations | 3-Panel Bay: 30° or 45° (double-hung or casement), 90° box bay (casement) Custom Sizes Available |
| Warranty | 20-Year Limited Warranty on glass 10-Year Limited Warranty on non-glass components 2-Year Limited Warranty on installation |
Ideal for Any Room
Professional Window Installation
Expert Installation. Superior Performance.
A great window starts with expert installation. Our certified installers make sure your Andersen windows are installed the right way, so you get the beauty, efficiency and long-lasting performance you expect.
- Factory-trained & certified installers
- InstallShield® solutions for superior protection
- Attention to detail on every window
- Clean, respectful & on-time service
- Backed by strong warranties
Strong Warranties. Lasting Confidence.
Built to last. Backed for years.
The Andersen warranty is transferable from one homeowner to the next, adding value and peace of mind when you sell your home.
Let us help you with your window replacement project
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