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Certified Series Bi-Fold vs. Renewal by Andersen®
Renewal by Andersen is a premium full-service replacement brand built on Fibrex composite and fiberglass — and its patio doors are sliding or hinged, not folding glass walls. Here's the spec-for-spec breakdown against an all-aluminum, factory-direct Certified Series folding door.
- Thermally broken aluminum frame — no wood core to rot, warp, or refinish
- 6 / 20 / 6 insulated glass with 90% argon fill
- Certified 4500 Pa wind-load & NFRC energy ratings
- Ships ready to install — hardware included, factory-direct price
- Frames built from Fibrex composite and fiberglass
- Patio doors are sliding or hinged — no folding wall
- Sold through a premium full-service replacement model
- Folding doors are a separate Andersen architectural product
Side-by-Side Comparison
Certified Series — Full Technical Specification
Construction & Materials
Energy — NFRC / Title 24
Engineering — EN Standards
Glazing — Reference
Why It Wins
Get the contractor & trade pricing.
Factory-direct, no middleman, with multi-unit and project pricing for builders, glaziers, and dealers.
Renewal by Andersen®, Andersen®, and Fibrex® are registered trademarks of Andersen Corporation; other brand names are trademarks of their respective owners. Gladiator Window & Doors is an independent manufacturer and is not affiliated with, authorized by, or endorsed by these companies. Renewal by Andersen figures reflect publicly available manufacturer specifications and product lines as of June 2026 and vary by series, size, and configuration. Gladiator values reflect certified test data for the Certified Series folding door.
Buyer's Guide · Aluminum Bifold Doors
Gladiator Bi-Fold vs Renewal by Andersen®
How an all-aluminum folding glass wall compares to Renewal by Andersen's Fibrex composite patio doors.
Comparing Renewal by Andersen patio doors to an aluminum bifold door? Renewal by Andersen is a premium full-service replacement brand built on Fibrex composite and fiberglass — and its patio doors are sliding or hinged, not folding glass walls. This guide compares aluminum vs. composite and where a factory-direct aluminum folding door fits.
01Does Renewal by Andersen Make a Bifold (Folding) Door?
No. Renewal by Andersen's replacement patio doors are sliding or hinged — not a folding/bifold glass wall. Its frames are built from Fibrex composite and fiberglass, not aluminum. (Andersen's folding doors are a separate architectural product, not part of the Renewal replacement line.)
Renewal by Andersen is the company's full-service replacement division, known for Fibrex composite — strong and low-maintenance, but a composite, not aluminum. Its patio doors save space as sliders or French doors; they don't open as a folding wall. And Renewal's pricing reflects its full-service, premium-install model.
02Aluminum vs. Fibrex Composite: What's the Difference?
Aluminum is a rigid metal frame; Fibrex is a wood-fiber and thermoplastic composite. Fibrex is durable and won't rot, but it's a different material class — and Renewal doesn't offer it as a folding wall. Aluminum delivers the strength-to-span a wide bifold needs.
Fibrex composite is a legitimately good material for replacement windows and sliding doors. The distinction here is product and material: Renewal builds sliders and French doors in composite, not a folding aluminum wall, and sells them through a premium full-service install model. An all-aluminum bifold is a different product at factory-direct pricing.
Why aluminum wins for folding doors specifically
- Strength-to-span: aluminum holds bigger panels flat without bowing — critical for wide bifold openings.
- No refinishing: powder-coated aluminum never needs sanding, staining, or repainting like a wood interior.
- Corrosion resistance: paired with a SUS304 stainless steel track, it holds up in coastal and high-humidity climates.
- Thermal break: a modern thermally broken aluminum frame closes the old energy gap people associate with older aluminum.
03Which Bifold Door Brands Offer an All-Aluminum Frame?
Renewal by Andersen joins most household-name brands here: it doesn't build an aluminum folding door — many make their doors in composite, vinyl, wood, clad-wood, or fiberglass instead. A true all-aluminum folding wall is usually a premium specialty product or a factory-direct manufacturer.
| Brand | Bifold frame material | All-aluminum frame? |
|---|---|---|
| Andersen 100 / 200 / 400 Series | Wood / composite (no bifold) | No |
| Andersen A-Series / Big Doors | Aluminum-clad wood (premium tier) | No |
| Pella (Reserve / 250 Series) | Aluminum-clad wood or vinyl | No |
| Marvin (Ultimate / Elevate / Vivid) | Clad-wood or Ultrex fiberglass | No |
| Simonton / Renewal by Andersen | Vinyl / Fibrex composite | No |
| Gladiator Certified Series | Thermally broken aluminum | Yes |
Name a recognizable brand that builds an all-aluminum folding wall — and isn't twice the price.
That's the gap a factory-direct aluminum bifold fills: the premium material without the premium dealer markup.
04The Best Renewal by Andersen Alternative for a Folding Glass Wall
If you want the wide, wall-opening folding door Renewal doesn't offer — in an aluminum frame, at factory-direct pricing instead of premium full-service install rates — the Gladiator Certified Series is the all-aluminum alternative.
It ships semi-assembled with the glass pre-mounted, backed by a 15-year warranty covering the seal package, track, and fit and finish — available factory-direct to homeowners and trade buyers.
05Renewal by Andersen Bifold Door FAQs
Does Renewal by Andersen make a bifold or folding door?
Is Renewal by Andersen aluminum?
Aluminum vs. Fibrex composite — which is better for a folding door?
What's a good alternative to Renewal by Andersen for a folding wall?
Compare the full spec sheet — or get trade pricing
See the side-by-side numbers, or apply for contractor, builder, and dealer pricing on factory-direct aluminum bifold doors.
Shop Aluminum Bifold Doors Apply for Trade PricingRenewal by Andersen®, Andersen®, and Fibrex® are registered trademarks of Andersen Corporation; other brand names are trademarks of their respective owners. Gladiator Window & Doors is an independent manufacturer and is not affiliated with, authorized by, or endorsed by these companies. Comparisons are based on publicly available manufacturer specifications and product lines as of June 2026 and vary by series, size, and configuration.
