Replacement Window GuideThe 400 Series is Andersen's flagship wood replacement window. It pairs a natural wood interior with a protective factory exterior. Andersen backs the glass and non-glass parts under separate limited warranty terms.
Frame and Materials
The 400 Series uses wood as its core frame material. Andersen states that these products are primarily made from wood with a Perma-Shield exterior cladding. The cladding protects the frame from weather while the interior stays natural wood.
On the 400 Series Tilt-Wash Double-Hung style, Andersen describes the build as wood and vinyl. A vinyl exterior protects the window from weather while the interior is natural wood. This construction targets homeowners who want a real wood interior with lower outside maintenance.
Glass and Energy Options
The 400 Series comes standard with dual-pane glass for a baseline level of energy efficiency. Andersen offers upgrades from that baseline for buyers who want more thermal performance.
Available upgrades include triple-pane glass and low-emissivity (Low-E) coatings. These options help reduce heat transfer and cut the ultraviolet light that passes through the glass.
Warranty
Andersen backs the 400 Series with a limited warranty that splits coverage by component type. The glass and the non-glass parts carry different terms.
Andersen lists 20 years on standard glass and 10 years on non-glass parts for the 400 Series. The warranty is transferable to later owners.