Andersen
Andersen is a Minnesota-based window and patio door manufacturer that sells wood and composite units through a network of independent dealers and building supply retailers. Its 400 Series is the volume line most contractors quote first, while the A-Series covers larger, more customizable openings. Andersen publishes NFRC-rated performance data by product line rather than a single brand-wide number, so the exact rating depends on the configuration ordered.
Parent company Andersen Corporation · Premium positioning · Updated August 2026
Product lines
Andersen's highest-volume wood window line, offered in a range of NFRC-rated glass packages.
Wood-composite construction with a wider range of shapes, sizes, and published performance options.
Made-to-order wood windows with the broadest published design and finish options in the lineup.
Fibrex composite line positioned below the wood lines on price.
Warranty summary
| Coverage | Published term |
|---|---|
| Glass, insulated unit | 20 years published against seal failure on most residential lines |
| Non-glass parts and finish | 10 years published on most wood and composite lines, with shorter terms on certain hardware |
| Labor | Published only when installed by an Andersen-certified contractor program in the given market |
| Registration | Not required to activate base coverage, but Andersen recommends keeping proof of purchase |
| Transferability | Limited transfer published for the original residence, with conditions in the written warranty |
Warranty length differs by product line and by component, and installation method can affect a claim. Read the specific warranty document for the series quoted rather than assuming brand-wide terms.
Price positioning
Andersen prices in the premium band for wood and composite construction, with the 100 Series priced lower as its value entry. No installed price is published, so a written local dealer quote is the only reliable comparison.
Installation channel
Sold through independent dealers and major building supply retailers, with local installation typically subcontracted rather than performed by Andersen employees.
Maintenance considerations
- Wood-clad exteriors on the 400 and A-Series need periodic exterior finish inspection where cladding is exposed to trim damage.
- Weep holes and drainage tracks should be cleared of debris each season to keep water managed away from the frame.
- Hardware such as locks and hinges should be lubricated per the care guide to avoid premature wear claims.
- Keep the original sales receipt and installation date, since claims are tied to purchase records rather than a registration database.
Andersen comparisons
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Financing options
How homeowners pay for this work, with the tradeoffs of each route.
Warranty resources
What manufacturer coverage does and does not include, and where a service contract fits.
Frequently asked questions
What is the difference between Andersen 400 Series and A-Series?
The 400 Series is Andersen's higher-volume wood line with a set range of published options, while the A-Series offers wood-composite construction with a wider range of shapes, sizes, and performance packages.
How long is the Andersen glass warranty?
Andersen publishes 20 years of coverage against insulated glass seal failure on most residential lines. Confirm the exact term on the warranty document for the series you are quoted.
Do I have to use an Andersen dealer to keep the warranty?
Base product warranty generally follows the unit regardless of installer, but any labor coverage tied to a certified installation program applies only when that program installs the windows.
What is Fibrex?
Fibrex is Andersen's proprietary composite material used in the 100 Series, made from reclaimed wood fiber and thermoplastic polymer according to Andersen's published product literature.
Are Andersen windows ENERGY STAR certified?
Certain configurations across Andersen's lines qualify for ENERGY STAR depending on the glass package and the climate zone. Check the NFRC label on the specific unit quoted rather than assuming the whole line qualifies.
Can the Andersen warranty transfer if I sell my house?
Andersen publishes a limited transfer provision tied to the original residence with conditions stated in the written warranty. Review that document before assuming coverage carries to a new owner.
Verify these details yourself
- Installed price in your market, which is set by the dealer and installer.
- Whether a specific configuration qualifies for ENERGY STAR in your climate zone without checking the NFRC label.
- Comparative long-term failure rates against other brands. No independent public dataset was found.
- Local dealer response time for warranty service claims.
Sources
- Andersen limited warranty documentation · Official manufacturer, checked 2026-08-03, confidence: high
- Andersen window product line specifications · Official manufacturer, checked 2026-08-03, confidence: medium
- National Fenestration Rating Council label and certification program · Independent testing, checked 2026-08-03, confidence: high. Used for U-factor, SHGC, and other published NFRC label ratings.
- ENERGY STAR windows, doors, and skylights criteria · Government, checked 2026-08-03, confidence: high. Used only for climate-zone qualification framing, not for a reliability claim.
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