Verified from the manufacturer’s own documentation · last checked September 18, 2026
| Manufacturer | Andersen |
|---|---|
| Series | 400 Series |
| Frame material | Wood core with Perma-Shield exterior cladding. Andersen describes Perma-Shield as a proprietary high-grade vinyl that is vacuum formed or extruded around the wood for a weather seal, giving a wood interior with a low-maintenance exterior |
| Styles / configurations | Double-hung, Woodwright double-hung, casement, awning, gliding, picture, bay and bow, and specialty shapes; gliding and hinged patio doors are also offered in the line |
| Glass options | High-Performance Low-E4 glass family, including Low-E with HeatLock coating and SmartSun; blinds between the glass and standard or custom grille patterns available. Stormwatch Protection options are offered for coastal code requirements |
| U-factor | Not published by Andersen as a single range. NFRC-certified performance data is published per product in Andersen's trade product guides. Configuration dependent: check the label on your quote |
| SHGC | Not published by Andersen as a single range. Configuration dependent |
| VT | Not publicly specified |
| ENERGY STAR | Andersen offers ENERGY STAR certified configurations across its lines; certification follows the glass package and the climate zone rather than the series |
| NFRC certification | NFRC-certified performance data published per product in Andersen's trade product guides |
| Warranty | Andersen Owner-to-Owner limited warranty, which Andersen states transfers when the home is sold. Andersen's 400 Series page states the coverage as 20 years on standard glass and 10 years on non-glass components. Dealer documentation adds that wood exteriors are covered for 5 years and lists exclusions such as art glass and blinds between the glass. Read the current warranty document before purchase |
| Positioning | Andersen's best-selling wood line, positioned above the Fibrex composite 100 Series: wood interior, clad exterior, wide color and style range. Andersen states the line has been validated through more than 50 years of use and accelerated weather testing |
| Price position | Not publicly specified |
| Installation | Replacement and new construction, sold through Andersen dealers and certified contractors |
Notes
Color counts differ between dealer sources (seven exterior colors in one, twelve trim colors in another), so we do not publish a figure. VT and installed pricing not publicly specified. Woodwright is a distinct double-hung construction within the same line
Sources
Andersen 400 Series series page (materials, styles, warranty headline, Perma-Shield description); Andersen warranty page; dealer documentation for the 5-year wood exterior term and warranty exclusions; dealer pages for color counts, which vary between sources