400 Series casement window
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Tech specs
BEST SELLING
The crowd-pleasing casement window
The 400 Series casement window is a best-seller for a reason. It has plenty of options to fit the look and feel of your home, all while bringing in up to 6-feet of floor-to-ceiling fresh air.
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Contemporary
Traditional
See this window in real homes.
using #andersenwindowsDesign it to fit your life
STYLE
A look you'll love
INSECT SCREENS
Nature without the bugs
GRILLES
Form and function
A top warranty in the industry
Every 400 Series window and door comes with one of the industry's best limited warranties. The warranty is even transferable, so it'll continue to add value if you decide to sell your home.
Technical guides for professionals
View our sizing and performance documents to get your project started.
400 Series Product Guide For Professionals
Created for trade professionals, product guides provide high-level overviews of the features and options available with each Andersen® product series. Additionally, they include detailed information on the construction of each type of 400 Series window and door, along with sizing charts and section details. Product performance data is also included.
Andersen parts & accessories are always available
The essentials
We're here for you
With the largest service network in the industry, we're ready if you need us.
Call 888-888-7020 or find a service provider.
Explore other casement windows
- Made of Andersen-exclusive composite material (Fibrex® ), which is twice as strong as vinyl
- Virtually maintenance-free
- Available as single units or in twin and triple combinations
- Available as replacement insert window
- Virtually maintenance-free aluminum exterior to resist water and stand up to the elements
- Stained or painted wood interior with aluminum
- Exterior to resist water and stand up to the elements
- Hinged on the sides with no center meeting stile, allowing for unobstructed views
- Stained or painted wood interior with aluminum
- Exterior to resist water and stand up to the elements
- Weather-resistant design makes this our best-performing casement
- Wide array of style options including factory-finished wood interiors for architectural authenticity
- Triple-pane glass options provide exceptional energy efficiency
- Unique hinges allow casement sash to open to 95° for maximum ventilation
- This is your low-maintenance, energy-efficient window solution.
- Multi-point lock on the perimeter of the frame offers enhanced security