The 100 Series is Andersen's alternative to vinyl. Frames and sash are made entirely of Fibrex® composite (about 40% reclaimed wood fiber and 60% thermoplastic polymer by weight), which Andersen rates at roughly twice the strength of vinyl. The extra strength allows slimmer frames and more glass area than a comparable vinyl window, and the material stays dimensionally stable through Minnesota's temperature swings.
For Twin Cities homeowners the standout is color: the 100 Series comes in dark exterior finishes, including Dark Bronze and Black, that Andersen warrants against fading, flaking and peeling. It is offered in both new-construction (nail-fin) and replacement (insert) configurations, and it is the Andersen line most often stocked at The Home Depot and local lumberyards.
Glass is dual-pane Low-E4® with argon, with Low-E4 SmartSun™ and the HeatLock® coating as the usual upgrades, plus sound-reducing and patterned glass. Andersen does not list triple-pane for the 100 Series; if you want triple-pane, look at the 400 Series (select markets) or the A-Series and E-Series.
Highlights
- Fibrex® composite frames and sash, about twice the strength of vinyl
- Fibrex blocks thermal transfer nearly 700 times better than aluminum (Andersen)
- Dark exterior colors (Dark Bronze, Black) that resist fading, flaking and peeling
- Slimmer frames and more glass area than comparable vinyl windows
- New-construction and replacement (insert) configurations
- Finelight™ grilles between the glass for easy cleaning
- Owner-2-Owner® limited warranty: 20 years on glass, 10 years on non-glass parts, transferable
Available styles
Insulation and energy performance in Minnesota
The 100 Series insulates well for its price because the Fibrex frame conducts far less heat than aluminum and about as little as vinyl, and every unit ships with Low-E4 insulating glass and argon. For a Minnesota house, order Low-E4 or Low-E4 SmartSun with the HeatLock room-side coating; the 100 Series is a dual-pane line, so the coatings are where the cold-weather gains come from.
Glass packages
- Low-E4® dual-pane insulating glass with argon fill (standard): a low-emissivity coating that keeps winter heat in and reflects summer heat
- Low-E4® SmartSun™: adds stronger solar-heat and UV filtering (Andersen states 95% of UV) for south- and west-facing rooms
- HeatLock® coating: applied to the room-side glass surface, reflects heat back into the room and improves U-factor; available on most glass options
- Sound-reducing and patterned glass options
- Other Andersen glass (PassiveSun®, Sun) varies by unit; confirm by window style at the estimate
- Dual-pane line; Andersen does not list a triple-pane option for the 100 Series
Frame and sash
Frame and sash are solid Fibrex® composite, with no hollow metal to bridge the cold. Andersen states Fibrex blocks thermal transfer nearly 700 times better than aluminum. Sash are weatherstripped, and gliding and single-hung units use an interlocking meeting rail.
Ratings
Glass options make 100 Series units ENERGY STAR® certified; Northern-zone certification depends on style and glass, so check the NFRC label for the unit. Andersen publishes unit U-factors by style and glass on its NFRC labels and in its product guide; we will match the package to your exposure at the estimate.
What the install adds
On install day we set the unit on a sloped sill pan, tape the flanges or brickmould to the housewrap with flashing tape, fill the rough-opening gap with low-expansion foam, and seal the interior with backer rod and sealant before trim goes on. The exterior joint gets backer rod and sealant too, so the rating on the label is what the wall actually gets.
100 Series at a glance
- Exterior colors
- White, Sandtone, Terratone, Dark Bronze, Black
- Interior finish
- White, Sandtone, Dark Bronze or Black; Dark Bronze and Black interiors only with the matching exterior
- Hardware finishes
- White, Sandtone, Dark Bronze, Black, Satin Nickel, Antique Brass (Slim Line metal hardware on single-hung and gliding units)
- Grilles
- Finelight™ grilles between the glass (optionally with exterior grilles), full divided light, or simulated divided light
- Screens
- Insect screens included; TruScene® fine-mesh screen available on select units
- Glass
- Low-E4®, Low-E4® SmartSun™, HeatLock® coating; sound-reducing and patterned glass; dual-pane only
- Installation types
- New construction (nail fin) and replacement (insert) frames
- Patio doors
- 100 Series gliding patio door
- Warranty
- Owner-2-Owner® limited warranty: 20 years glass, 10 years non-glass; transferable, not prorated
- Where sold
- The Home Depot, lumberyards and Andersen dealers
- Made in
- Andersen plants in the United States; Andersen is headquartered in Bayport, MN
Product details summarized from the manufacturer's published materials, last checked 2026-10-09. Options, specifications, and availability vary by configuration and change over time — we'll confirm current options and pricing for your project at your free estimate.
