Updated September 2026. How we research products
UpgradeWorth illustration of a fiberglass-clad, wood-interior unit. Not a photograph of the product. View official product photos.
Marvin · Elevate
Essential’s Ultrex exterior, with wood facing the room
Formerly Integrity Wood-Ultrex. Same exterior material and same warranty document as Essential; the difference is a natural wood interior you finish and look after, plus a wider set of shapes and a double-hung insert.
- MaterialUltrex fiberglass exterior, natural wood interior
- PositioningBetween the all-fiberglass Essential and Marvin’s Signature lines
- InteriorFactory-painted, clear coat, or bare pine to finish on site
- Warranty10 years non-glass, 20 years glass under 60 sq ft; transfers; labor excluded
- ReplacementDedicated double-hung insert product available
- ExteriorSix colors; Marvin says paintable without voiding coverage
UpgradeWorth has not physically tested this product. This review is based on Marvin’s product pages, its official Window and Door Limited Warranty and dealer documentation. Performance claims for Ultrex are Marvin’s own and are labelled as such.
Elevate is the collection people end up in when they like what Marvin’s fiberglass does outside but want wood inside the room. Previously sold as Integrity Wood-Ultrex, it sits between the all-fiberglass Essential and the Signature lines.
Quick summary
| Brand | Marvin |
|---|---|
| Series | Elevate |
| Frame material | Ultrex fiberglass exterior with a natural wood interior. Marvin states Ultrex is 8 times stronger than vinyl and 3 times stronger than wood-vinyl composites, has a low thermal expansion rate and resists fading, chalking, peeling and cracking. The exterior is paintable without voiding the warranty, and Marvin says it holds dark colours better than vinyl or vinyl-wood composites. The collection was previously sold as Integrity Wood-Ultrex |
| Styles | Awning, casement, double-hung, double-hung insert, glider, picture and direct glaze, bay, bow, round top and specialty shapes, plus sliding and swinging French patio doors |
| U-factor | Not published by Marvin as a single range. Performance data is published per product in Marvin's Elevate product resources. Configuration dependent: check the NFRC label on your quote |
| SHGC | Not published by Marvin as a single range. Configuration dependent |
| ENERGY STAR | ENERGY STAR certified glass options are offered; certification follows the glass package and the climate zone |
| Warranty | Marvin Limited Warranty (effective January 12, 2026), fully transferable to later owners of the structure. Insulating-glass seal: 20 years up to 60 sq ft, 10 years at 60 sq ft and larger. Non-tempered glass stress cracks: 10 years. Hardware and other non-glass components: 10 years. Standard exterior fiberglass (Ultrex) cladding finish: 10 years (AAMA 625). Factory interior wood finish: 5 years. Labor is not covered: removal, installation, finishing, refinishing and disposal costs are excluded. Claims within 60 days of the defect appearing. Not a lifetime warranty (Infinity by Marvin is a separate brand with its own terms) |
| Price position | Not publicly specified |
| Installation | Replacement, including a dedicated double-hung insert product, plus remodelling and new construction; sold through Marvin dealers |
Specifications from the manufacturer and certification databases, last verified September 19, 2026. Official product page. Values vary by configuration; check the label on your own quote.
The actual distinction
Elevate and Essential share the same exterior material and the same warranty document. The difference is what faces the room.
| Marvin Essential | Marvin Elevate | |
|---|---|---|
| Exterior | Ultrex fiberglass | Ultrex fiberglass |
| Interior | Ultrex fiberglass | Natural wood: factory-painted, clear coat or bare pine to finish on site |
| Approach | One material inside and out | Fiberglass for the weather, wood for the room |
| Maintenance | Cleaning only | Interior wood needs finishing and occasional care |
| Replacement option | Full-frame and replacement sizing | Includes a dedicated double-hung insert product |
Neither is universally better. Essential is the more uniform approach and the lower-maintenance one; Elevate buys a wood interior and a wider set of shapes, and asks you to look after it.
Materials
Marvin states Ultrex is 8 times stronger than vinyl and 3 times stronger than wood-vinyl composites, with a low thermal expansion rate, and that its proprietary AAMA-verified acrylic finish is about three times thicker than competing painted options, resisting fading, chalking, peeling and cracking even in dark colours. Marvin also states the exterior is paintable without voiding the warranty, which is unusual and worth knowing if a future owner wants a different colour.
These are Marvin’s claims, not our measurements. What they explain is the positioning: the exterior is meant to be the part you never touch.
Styles and finishes
Awning, casement, double-hung, a double-hung insert for replacement work, glider, picture and direct glaze, bay, bow, round top and specialty shapes, plus sliding and swinging French patio doors. Six exterior colours in neutral and dark tones. Interiors come factory-painted, clear coated or as bare pine you can stain to match existing trim.
The insert product is the detail that matters most in a replacement project: it allows a like-for-like swap where the existing frames are sound, which is usually the cheaper route. See insert vs. full-frame.
Glass and coastal ratings
Dual-pane and triple-pane options, with ENERGY STAR certified glass available, and Hurricane Impact Zone 3 ratings for severe coastal conditions. Marvin publishes performance data per product rather than a collection-wide range, so the NFRC label on your quote is the number that counts.
Warranty
The same official Marvin Limited Warranty that covers Essential and the Signature collections: 20 years on standard insulating glass under 60 square feet and 10 years at 60 square feet or more, 10 years on non-glass components, 20 years on the standard exterior cladding finish per AAMA 2605-11, and 5 to 10 years on interior finishes depending on the finish. Removal, installation, finishing, refinishing and disposal are not included in the remedy. The warranty transfers with the home, and it is not a lifetime warranty.
The interior finish term is the one to read closely here, because on Elevate the interior is wood and the finish is part of what you are buying.
Installation considerations
Sold through Marvin dealers. Wood interiors want a dry, controlled installation and proper finishing, so ask who finishes bare pine units and when. As with every line we cover, the installation method moves the price more than the product choice, and labour sits outside the manufacturer’s warranty entirely.
Strengths
- Wood interior without moving up to a luxury collection
- Ultrex exterior that Marvin says is paintable without voiding coverage
- Wide style range, including bay, bow, round top and specialty shapes
- A dedicated double-hung insert for replacement projects
- IZ3 coastal ratings available
Limitations
- Not a lifetime warranty, and labour is excluded from the remedy
- Interior wood needs finishing and maintenance that Essential does not
- No published U-factor range for the collection
- Costs more than Essential for the same exterior material
Who it may suit
A homeowner who wants visible wood inside a traditional or transitional house and a low-maintenance exterior, and who is comfortable finishing and maintaining the interior. A homeowner who wants the least upkeep possible, or who is replacing a whole house on a tighter budget, should look at Marvin Essential first: the exterior is the same material.
Alternatives worth pricing
- Marvin Essential, the all-fiberglass version of the same exterior.
- Andersen 400 Series, the direct competitor: wood interior with vinyl Perma-Shield cladding rather than fiberglass, and a transferable warranty.
- Pella Impervia if the wood interior is not essential.
Official sources
- Marvin Elevate collection
- Marvin exterior finishes and colours
- Marvin Window and Door Limited Warranty (PDF)
We earn nothing from these links. Specifications vary by configuration and change between model years; the verification date is in the summary table.