Marvin retired the Integrity Windows and Doors brand in April 2019 and moved every Integrity product into the Marvin lineup. Integrity Wood-Ultrex became the Marvin Elevate Collection, and Integrity All-Ultrex became the Marvin Essential Collection. The windows themselves did not go away. The frames, the Ultrex fiberglass, and the factories stayed the same, and only the badge on the label changed. Below we walk through what changed in 2019, which Integrity line became which collection, whether parts and warranty coverage still apply to the Integrity units already in homes, and which Marvin collection makes sense for a build today.

What Happened to Marvin Integrity Windows?

What happened to Marvin Integrity windows is a brand consolidation, not a discontinuation. On April 30, 2019, Marvin announced that the company would unite its two consumer-facing brands, Marvin Windows and Doors and Integrity Windows and Doors, under the single name Marvin. Both original logos were retired that same day, replaced by one refreshed Marvin mark carrying the yellow rose the company first adopted in 1968. Every product sold as an Integrity window before April 2019 continued in production under a Marvin collection name after April 2019.

The retirement of a brand name reads very differently from the retirement of a product, and searchers land on this question because the two get confused. Homeowners who found an Integrity sticker on a sash assumed the manufacturer had folded or sold off the line. Builders who had specified Integrity for a decade of production homes assumed the product had been cut. Neither assumption holds. Marvin reorganized a portfolio, kept every unit in production, and simplified the shelf so customers were choosing between collections rather than between two competing brand identities from the same company. We carry the current versions of those same products today, and the Marvin windows in our lineup trace directly back to the Integrity lines builders already know.

What Are Marvin Integrity Windows Called Now?

Marvin Integrity windows are called Marvin Elevate and Marvin Essential now. The split follows the original Integrity product split exactly. Integrity Wood-Ultrex, the line with a natural wood interior and an Ultrex fiberglass exterior, became the Marvin Elevate Collection. Integrity All-Ultrex, the line with Ultrex fiberglass on both the interior and the exterior, became the Marvin Essential Collection. Wood-Ultrex is Elevate, and All-Ultrex is Essential.

A third rename happened at the same time and gets forgotten. Marvin Contemporary Studio, a line sold under the Marvin brand rather than the Integrity brand, was absorbed into the Signature Collection alongside Marvin Ultimate and Marvin Modern. Signature, Elevate, and Essential were the three collections that came out of the 2019 reorganization, and Marvin published that mapping in its own announcement rather than leaving dealers to guess.

What Is the Difference Between Marvin Elevate and Marvin Essential?

The difference between Marvin Elevate and Marvin Essential is the interior material. Elevate pairs a natural pine interior with an Ultrex fiberglass exterior, so the inside of the frame accepts stain or paint and reads as traditional millwork from inside the room. Marvin Essential uses Ultrex fiberglass on both faces, which removes the finishing step entirely and gives a factory finish that needs no sanding, scraping, or repainting over its service life.

That single material decision drives the rest of the specification. Wood interiors suit custom homes where the trim carpenter is already staining casing and base to match. All-fiberglass interiors suit production builds, multi-unit projects, rentals, and any opening where a crew wants the window to arrive finished and stay finished. Builders we work with tend to run Elevate through the main living spaces and Essential through utility rooms, garages, and secondary bedrooms on the same house.

Are Marvin Integrity Windows Still Made?

Marvin Integrity windows are still made, and they are sold under the Elevate and Essential names. Production never paused during the 2019 transition. The pultruded fiberglass that Integrity was built around is the same proprietary Ultrex compound that Elevate and Essential use today, produced by the same manufacturer that developed it in the early 1990s.

What did change is the option set. Marvin has widened color palettes, glass packages, and size ranges across both collections since 2019, so a current Elevate order carries choices an Integrity order in 2018 could not. The core unit is the same, and the catalog around it grew.

What Is Ultrex Fiberglass?

Ultrex fiberglass is Marvin’s proprietary pultruded fiberglass frame material, and it is the reason the Integrity lines carried the reputation they did. Pultrusion pulls continuous glass fiber strands through a resin bath and then through a heated die that cures the composite into a finished lineal. Continuous glass fiber running the full length of the lineal produces a flexural modulus that Marvin measures at eight times that of vinyl and three times that of vinyl and wood composite blends. Ultrex is a pultruded glass fiber composite that tests eight times stronger than vinyl and expands roughly 87 percent less than vinyl under temperature change.

Low thermal expansion matters more than raw strength for long-term performance. Marvin’s published material data puts Ultrex expansion at nearly the same rate as the glass it holds, which keeps the frame and the insulating glass unit moving together through daily heating and cooling cycles rather than working against each other at the seal. Frames that move at a different rate than their glass load the sealant edge thousands of times a year, and that repeated loading is what eventually opens a seal. Ultrex also measures about 5,000 times less conductive than aluminum, so the frame itself contributes very little thermal bridging. The tradeoffs between fiberglass frames and other materials come down largely to these two properties.

The exterior finish carries its own specification. Marvin’s acrylic finish on Ultrex measures three times thicker than competing painted finishes and was the first fenestration finish to earn AAMA 624 verification, the industry standard for pigmented organic coatings on fiberglass profiles. That verification is why dark exterior colors ship without a fading disclaimer.

What Is Ultrex Made Of?

Ultrex is made of continuous glass fiber strands bound in a thermoset resin matrix and cured through pultrusion. The glass fiber supplies tensile and flexural strength, the resin binds the fibers and seals the surface, and the pultrusion die sets the finished profile geometry in one continuous pass.

Because the fibers run lengthwise through the entire lineal rather than sitting as chopped filler, the material resists bending and twisting along the axis where a window frame carries the most load. That fiber orientation is what allows narrow sightlines across large openings without the frame bowing under glass weight.

Is Infinity by Marvin the Same as Integrity?

Infinity by Marvin is not the same as Integrity, and the two get mixed up constantly. Integrity launched in 1994 as a new construction line built with an all-wood interior and an all-Ultrex fiberglass exterior. Infinity by Marvin received board approval in December 2000 and shipped its first customer order on October 4, 2002, as a replacement window line sold and installed through local Infinity partners rather than through building material dealers. Integrity served new construction and became Elevate and Essential, while Infinity has always been a separate replacement window brand and still operates under its own name today.

Both lines were built on Ultrex, which is the root of the confusion. Even long-tenured design professionals have swapped the two in writing, describing Essential as the former Infinity and Elevate as the former Integrity. The correct mapping runs the other way for one of those and is simply wrong for the other. Essential and Elevate both came from Integrity. Infinity was never renamed and never merged.

Are Elevate Windows as Good as Integrity Windows Were?

Elevate windows are as good as Integrity windows were, and in several measurable ways they are better. The frame material, the pultrusion process, the wood interior species, and the manufacturing facilities all carried straight through the 2019 transition without substitution. A 2018 Integrity Wood-Ultrex casement and a current Elevate casement share the same Ultrex exterior compound and the same acrylic finish specification.

What improved sits on top of that foundation. Glass packages advanced across the industry between 2019 and today, and Elevate now offers configurations built to meet the tightened ENERGY STAR criteria that took effect in October 2023. Triple-pane glass, simulated divided lites, and an expanded exterior color range are all available on orders that would have been limited under the older Integrity catalog. The window did not get watered down when the badge changed. The specification sheet got longer.

Why Did Marvin Retire the Integrity Brand?

Marvin retired the Integrity brand to consolidate two overlapping brand identities into one clear portfolio. Running Marvin Windows and Doors and Integrity Windows and Doors side by side meant the same company competed with itself on dealer shelves, in specification documents, and in homeowner research. Paul Marvin, chief executive of the company, framed the 2019 change as a remodel rather than a rebuild, noting that the people, the product quality, and the design work all stayed in place while the presentation simplified.

Consolidation also gave the portfolio a logical ladder. Signature, Elevate, and Essential describe three levels of customization and material, which is a far easier conversation than explaining why one company sold two brands that both made fiberglass windows. The yellow rose survived the redesign because it had been identifying Marvin products since 1968, originally chosen to signal windows built for northern winters and southern hospitality. Marvin kept the icon and modernized the typeface around it. The result is the full Marvin lineup we quote from today.

Who Bought Marvin Windows?

No one bought Marvin Windows. Marvin remains a private, fourth-generation family-owned and family-led company headquartered in Warroad, Minnesota, where George Marvin founded it as Marvin Lumber and Cedar Company in 1912. The 2019 brand change was an internal decision by that family leadership, not the result of an acquisition, a merger, or a private equity transaction.

The company today employs more than 7,000 people across 16 cities in North America and distributes nationally through independent dealers. Fourth-generation family members Paul, Dan, Christine, and Will Marvin hold leadership roles, and a fifth generation is already being brought into the business. That continuity matters for anyone holding an Integrity window, because ownership stability is what keeps parts inventories, service channels, and warranty obligations intact across a brand transition.

Can You Still Get Parts for Integrity Windows?

You can still get parts for Integrity windows. Marvin supports Integrity units through the same dealer service channel that supports Elevate and Essential, because those are the same products under later names. Sash, hardware, screens, weatherstrip, and insulating glass replacements are ordered against the original unit specification.

The one thing a service order needs is the serial number. Every Marvin and Integrity unit carries an identification number, and that number tells the factory the exact configuration, glass package, and hardware set that shipped. Without it, a parts order becomes a guessing exercise involving field measurements and photographs. Homeowners who spot early signs of wear should record that number before making any service call.

How Do I Identify Which Marvin Window I Have?

You identify which Marvin window you have by locating the serial number etched or printed on the unit. On most units the number appears in one of three places. Open the sash and check the top or side of the sash edge where it meets the frame. Check the lower jamb liner on double hung and single hung units. Check the corner of the insulating glass spacer, visible through the glass at the perimeter, where the glass manufacturing code is stamped.

Material tells you the line even without a number. A pine interior with a fiberglass exterior is Wood-Ultrex, now Elevate. Fiberglass on both faces is All-Ultrex, now Essential. A wood interior with an extruded aluminum exterior is an Ultimate unit from the Signature Collection, which was never part of the Integrity family.

Are Integrity Windows Still Under Warranty?

Integrity windows are still under warranty if they fall inside the original coverage terms, because the brand change did not reset or void existing coverage. Marvin’s limited warranty covers insulating glass seal failure caused by manufacturing defects for 20 years in glass sizes up to 60 square feet and for 10 years in sizes of 60 square feet and larger, with non-glass components covered for 10 years. Non-tempered glass carries a 10-year warranty against stress cracks caused by manufacturing defects.

Coverage runs from the original installation date, so an Integrity unit installed in 2010 has already passed the 10-year non-glass window and sits near the end of the 20-year glass term. Units installed in 2017 or 2018, the final Integrity production years, still carry active glass coverage. The table below maps each Integrity line to its current name and coverage structure.

Former Integrity Line	Current Marvin Name	Interior Material	Exterior Material	Transition Date	Warranty Structure
Integrity Wood-Ultrex	Marvin Elevate	Natural pine	Ultrex fiberglass	April 30, 2019	20 years glass, 10 years non-glass, transferable
Integrity All-Ultrex	Marvin Essential	Ultrex fiberglass	Ultrex fiberglass	April 30, 2019	20 years glass, 10 years non-glass, transferable
Marvin Contemporary Studio	Marvin Signature	Wood or aluminum	Extruded aluminum	April 30, 2019	20 years glass, 20 years exterior finish, transferable
Infinity by Marvin	Infinity by Marvin (unchanged)	Ultrex fiberglass	Ultrex fiberglass	No change	Limited lifetime, transferable

Sources: Marvin press announcement dated April 30, 2019; Marvin Window and Door Limited Warranty documentation; Infinity by Marvin brand history.

Does the Marvin Warranty Transfer to a New Owner?

The Marvin warranty does transfer to a new owner. Marvin writes the limited warranty as fully transferable, so coverage follows the windows rather than the person who bought them. A house sold five years after installation carries the remaining balance of the original terms to the buyer.

Transferability applies to replacement parts as well. A glass unit replaced under warranty in year five inherits the remaining 15 years of the original 20-year term rather than restarting the clock. Buyers evaluating a home with Integrity or Marvin windows should ask the seller for original documentation and serial numbers at closing.

How Long Do Marvin Fiberglass Windows Last?

Marvin fiberglass windows last 30 to 50 years in most residential applications, and the frame material is the primary reason for the upper end of that range. Ultrex resists the expansion and contraction cycle that degrades other frame materials, and a frame that holds its dimension keeps its seals intact far longer than one that moves. Vinyl frames soften and deform at elevated temperatures, while pultruded fiberglass holds its shape through the same exposure.

Service life is not a single number, though, because installation and climate exposure shift it substantially. The factors below determine the outcome, ordered by how much influence each one carries.

1. Installation quality. A window shimmed out of square, flashed incorrectly, or set without a continuous air seal will fail at the perimeter long before the unit itself wears out.
2. Frame material stability. Thermal movement mismatch between frame and glass is the leading mechanical driver of insulating glass seal failure.
3. Glass package. Spacer type, gas fill, and coating quality determine how long the unit holds its thermal performance.
4. Exposure orientation. South and west elevations absorb far more ultraviolet radiation and heat cycling than north-facing openings on the same house.
5. Maintenance. Clearing weep holes, keeping tracks free of grit, and replacing worn weatherstrip extend hardware and seal life at almost no cost.

Frame material choice interacts with all of these. Aluminum clad wood units follow a different aging curve than fiberglass, and the right answer depends on the exposure and the finish expectations for the project. Service life is also the reason most people holding Integrity windows end up reading about the brand change in the first place, because a window approaching the end of its term raises the question of what comes next.

At What Age Should Windows Be Replaced?

Windows should be replaced between 20 and 40 years of age for most residential units, with the specific timing driven by performance rather than the calendar. A window that still operates smoothly, seals tightly, and shows clear glass has service life remaining regardless of its installation date. A 22-year-old unit with a fogged pane and a sash that will not latch has reached the end of its useful life even though the calendar suggests otherwise.

Performance testing is simple. Run a hand around the perimeter on a cold morning and feel for air movement. Watch for condensation forming between the panes rather than on the room-side surface. Check whether operating hardware still holds the sash in position without sagging. Any one of those three failing points to a unit that has stopped doing its job.

Is It Worth Replacing 30 Year Old Windows?

Replacing 30 year old windows is worth it in most cases, because a window built in the mid 1990s was engineered to energy standards that current products exceed by a wide margin. According to the U.S. Department of Energy, heat gain and heat loss through windows account for 25 to 30 percent of residential heating and cooling energy use, which makes the window line the largest thermal weak point in most building envelopes.

Older units compound that baseline. Weatherstrip hardens and cracks, sealant loses adhesion, and hardware wears until the sash no longer compresses the seal at full closure. The measurable energy loss from a 30-year-old assembly usually runs well above what the original specification predicted, because the specification assumed intact seals.

When Should Double-Pane Windows Be Replaced?

Double-pane windows should be replaced when the insulating glass seal fails, when the frame loses square, or when the unit no longer meets the thermal performance the house needs. Seal failure is the most common trigger and the easiest to confirm. Watch for these indicators:

• Condensation, haze, or moisture visible between the two panes rather than on either exposed surface
• A permanent cloudy film or mineral deposit on the interior glass surfaces that cleaning will not remove
• Panes that appear to bow inward or outward, which signals gas loss and pressure imbalance inside the unit
• Noticeably colder glass surface temperature compared with identical windows elsewhere in the house
• Sash that binds, drops, or fails to compress the weatherstrip evenly along its length
• Visible gaps, cracked sealant, or daylight at the frame perimeter

A single failed unit in an otherwise sound assembly can sometimes be addressed with a glass-only replacement, and that decision depends on the frame condition and the availability of a matching glass package. Where the whole run has aged together, upgrading the full elevation delivers a consistent result. The choice between double pane glass and a triple-pane package becomes relevant at that point, particularly on north and east elevations.

What Marvin Collections Are Available Now?

Five Marvin collections are available now. The current lineup runs Signature Ultimate, Signature Modern, Vivid, Elevate, and Essential, which is two more than the three collections that came out of the 2019 reorganization. Signature Ultimate offers the broadest customization with wood interiors and extruded aluminum exteriors. Signature Modern pairs high-density fiberglass exteriors with aluminum interiors for narrow sightlines and large glass spans. Elevate and Essential carry the former Integrity products forward.

Vivid is the newest addition and the most relevant one for builders who used to specify Integrity. Marvin introduced Marvin Vivid in autumn 2025, built around an Ultrex fiberglass exterior paired with a proprietary fiberglass reinforced composite interior developed specifically for the line. The collection reaches heights up to 10 feet, certifies to performance grades up to PG50 on windows and PG40 on doors, and meets or exceeds ENERGY STAR Version 7.0 across the United States with double and triple glazing options.

Availability rolled out regionally, and Oregon was among the first states to receive the collection. Casement, awning, and direct glaze windows anchor the window side, with bi-fold, sliding patio, sliding French, and swinging French doors on the door side, including bi-fold configurations reaching 22 feet wide. We quote all five Marvin collections, and Vivid has become a frequent answer for projects that want fiberglass durability with larger openings than Essential offers.

Which Marvin Collection Is Best for Cold Climates?

Elevate and Essential are the strongest Marvin collections for cold climates, because Ultrex fiberglass holds its dimension through hard freeze and thaw cycling better than vinyl or composite alternatives. Central Oregon sits at roughly 3,600 feet with daily temperature swings of 30 to 40 degrees through much of the year, and that swing loads window assemblies twice a day, every day, in a way that milder coastal climates never do.

Thermal expansion is the mechanism that matters at that elevation. A frame that moves at a different rate than its glass load works the seal edge on every cycle, and the count of those cycles is what determines when a seal opens. Ultrex expands at nearly the same rate as glass, so the assembly moves as one piece. That property is exactly why cold climate windows get specified around frame stability rather than around glass alone.

Glass specification carries the rest of the load. ENERGY STAR Version 7.0 took effect on October 23, 2023, and set a North-Central zone requirement of a U-factor at or below 0.25, with the Northern zone tightened to 0.22 alongside a new minimum solar heat gain coefficient (SHGC) of 0.17. Bend builders working to those thresholds need the glass package specified at order time rather than assumed, and a lower U-factor is the single number that moves a project into compliance. We review these values on every takeoff so the units that arrive match the code path the plans were drawn against.

What Is the Best Time of Year to Install Windows?

The best time of year to install windows is late spring through early fall, when moderate temperatures let sealants and flashing tapes cure properly. Most exterior sealants specify a minimum application temperature, and cold installations risk poor adhesion at the very joint that keeps water out of the wall assembly.

Lead time planning matters more than season for most projects. Custom sizes, specialty shapes, and triple-pane glass packages all extend production schedules, so a build targeting a summer dry-in date benefits from ordering months ahead. Winter installation remains workable with the right products and crew practices, and it becomes the right call when a failed unit is actively letting weather into the house.

Frequently Asked Questions

Does Marvin Still Make Wood Windows?

Marvin still makes wood windows. Natural wood interiors are offered on both the Signature Ultimate line and the Elevate Collection, with a range of finishes available from the factory. Ultimate provides the widest species and color selection in the lineup, while Elevate offers a pine interior that can ship bare for site staining or painting.

Was Integrity a Lower Quality Line Than Marvin?

Integrity was not a lower quality line than Marvin. Integrity was a differently positioned line, built around Ultrex fiberglass rather than wood and clad wood, and aimed at new construction where low maintenance mattered more than deep customization. The same company engineered and manufactured both, and Ultrex tested eight times stronger than vinyl throughout the Integrity era.

Can Elevate and Essential Windows Be Ordered in Custom Sizes?

Elevate and Essential windows can be ordered in custom sizes. Marvin builds to order rather than to stock inventory, which is how the company has operated since it shifted from lumber to fenestration in the 1940s. Size increments and maximum dimensions vary by product type and by collection, and Elevate carries a wider size range than Essential.

Do Integrity Windows and Current Marvin Windows Use the Same Glass Options?

Integrity windows and current Marvin windows do not use identical glass options, because glass technology advanced between the Integrity era and today. Coating packages, spacer designs, and gas fill specifications have all improved, and current Elevate and Essential configurations are built to meet ENERGY STAR Version 7.0 thresholds that did not exist before October 2023. Matching glass for a warranty repair on an older Integrity unit is ordered against the original specification.

Are Marvin Essential and Marvin Vivid the Same Thing?

Marvin Essential and Marvin Vivid are not the same thing. Essential uses Ultrex fiberglass on both the interior and the exterior. Vivid pairs an Ultrex fiberglass exterior with a proprietary fiberglass reinforced composite interior developed for that collection alone, and it reaches larger sizes, with heights up to 10 feet and performance grades up to PG50.

Can You Mix Marvin Collections on One House?

You can mix Marvin collections on one house, and many custom builds do exactly that. Sightlines, frame depths, and color availability differ between collections, so mixing works best when the collections are separated by elevation or by room rather than placed side by side in the same opening group. Confirming color matching across collections before ordering avoids visible variation on the finished exterior.

What Does the Yellow Rose on a Marvin Window Mean?

The yellow rose on a Marvin window is the company’s brand icon, first used in 1968. Marvin adopted it to represent products built for northern winters and southern hospitality, drawing on the idea that a rose needs the right indoor environment to flourish. It was also the favorite flower of Margaret Marvin, wife of Bill Marvin, who moved the company from lumber into windows and doors. The icon survived the 2019 redesign and appears on the current logo.

What It All Comes Down To

Marvin Integrity windows did not disappear. Marvin retired the Integrity name in April 2019 and carried both product lines forward, with Integrity Wood-Ultrex becoming the Elevate Collection and Integrity All-Ultrex becoming the Essential Collection. The Ultrex fiberglass that defined those windows is the same pultruded composite Marvin builds with today, and the limited warranty on existing Integrity units remains valid and fully transferable within its original terms. Anyone holding Integrity windows still has a supported product with an identifiable serial number and an active parts channel behind it.

For new work, the lineup has grown rather than shrunk, with Vivid joining Signature, Elevate, and Essential and reaching Oregon in its first availability wave. Picking between them comes down to interior material, opening size, and the glass package the energy code path requires. We work through those decisions with builders and homeowners across Central Oregon every week, from spec review to jobsite delivery, and we are glad to talk through what fits a specific project. Reach out to Lifetime Building Supply at 541-395-6808 whenever you want a second set of eyes on a window schedule.