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Author: Kaitlyn Short

LAST UPDATED: April 1st, 2025

​Win-Dor is an American manufacturer and supplier of high-quality vinyl windows and doors, serving homeowners across the country for over 25 years. This Win-Dor profile will focus on the company’s window products and services.

Win-Dor’s window offerings include the 1550 Series Sliding Windows, which provide smooth horizontal operation; the 1550 Series Single Hung Windows, designed for easy vertical movement; the 1550 Series Picture Windows, offering expansive, unobstructed views; and the 1750 Series Casement Windows, which feature clean lines and ample ventilation. Win-Dor also offers the 2750 Series Folding Windows, which can seamlessly connect indoor and outdoor spaces. 

All Win-Dor window products are crafted from 100 percent virgin vinyl, ensuring durability and low maintenance. To enhance aesthetic appeal and energy efficiency, Win-Dor provides various color options, as well as WinShield® technology — a specialty laminate that delivers consistent color and superior heat reflectivity.

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The Good

  • Win-Dor Window Products
  • Window Customization Options
  • Win-Dor Energy Efficiency
  • Win-Dor Window Warranties
  • Expansive Authorized Dealer Network
  • Free Consultations

Win-Dor Window Products

Win-Dor windows are designed to meet diverse architectural and functional needs, combining durability, energy efficiency, and aesthetic appeal. The company offers five window series, offering different window styles and functionality.

Win-Dor offers the following window product series:

  • 1550 Series Sliding Windows — The 1550 Series Sliding Windows are engineered for smooth horizontal operation, providing ease of use and a contemporary look. These windows incorporate high-quality rollers and advanced locking mechanisms to ensure both security and effortless functionality. The design allows for ample natural light and ventilation, enhancing the comfort of any space.
  • 1550 Series Single Hung Windows — Designed for vertical movement, the 1550 Series Single Hung Windows offer a classic aesthetic suitable for various architectural styles. They feature a fixed upper sash and a movable lower sash, facilitating easy operation and effective ventilation. The robust construction ensures longevity and minimal maintenance.
  • 1550 Series Picture Windows — The 1550 Series Picture Windows are ideal for framing expansive, unobstructed views, allowing abundant natural light to flood interior spaces. These fixed windows do not open, making them highly energy-efficient and perfect for highlighting outdoor scenery while enhancing the room's ambiance.
  • 1750 Series Casement Windows — The 1750 Series Casement Windows are characterized by their clean lines and large viewing areas. Hinged at the side, they open outward with the assistance of a crank mechanism, providing maximum ventilation and ease of cleaning. High-grade hardware ensures durability and smooth operation, making them a practical choice for various settings.
  • 2750 Series Folding Windows — The 2750 Series Folding Windows are designed to seamlessly connect indoor and outdoor spaces. Utilizing the same proven platform as their folding doors, these windows combine vinyl and aluminum to offer a unique blend of durability and aesthetic appeal. They are particularly suited for areas where wide openings are desired, enhancing both functionality and visual appeal.

While Win-Dor may not offer the comprehensive range of window styles available from many other companies — many companies offer double hung windows, bay windows, bow windows, etc., in addition to the styles outlined above — what sets Win-Dor’s window products apart is their innovative hybrid construction. By integrating rigid aluminum framing with long-lasting, low-maintenance vinyl capping, these windows achieve a balance of strength, energy efficiency, and ease of upkeep that is uncommon among competitors. This unique combination ensures structural integrity while minimizing maintenance.

Window Customization Options

Win-Dor offers a comprehensive range of window customization options, allowing homeowners to tailor their windows to their specific aesthetic and functional preferences. These options include a variety of colors, including the innovative WinShield® technology, and a range of aesthetically-pleasing grid styles.

Win-Dor Window Color Options

All Win-Dor windows are crafted from high-quality 100 percent virgin vinyl, available in white or beige. These colors are consistent throughout the company’s window products, hardened to withstand harsh elements, and will not peel, chip, or require repainting.

To provide greater customization opportunities, Win-Dor provides several color categories to suit diverse design needs, including the following:

  • Standard colors — A selection of popular painted exterior coatings is available. Each color is bonded to the vinyl surface, enhancing heat reflectivity. These finishes are scratch and chip-resistant, designed to endure various weather conditions while optimizing energy efficiency.
  • Semi-custom colors — For those seeking additional exterior color options, Win-Dor offers semi-custom colors. These may require longer production lead times; consulting with the factory is recommended for more information.
  • WinShield® technology colors — WinShield is a specialty laminate composed of multiple layers of durable and highly reflective materials. This technology enhances strength and heat reflectivity, performing exceptionally well even in extreme environments. WinShield is virtually maintenance-free, more durable than traditional paints, and provides consistent color across multiple products, reducing variations.

Win-Dor Window Grid Options

To further personalize windows, Win-Dor offers the following grid types and patterns:

  • Grid types
    • Grids Between Glass (GBG) Flat — grids are placed between panes of glass, offering a smooth surface for easy cleaning
    • GBG Sculptured — similar to flat GBG but with a contoured profile for a more traditional appearance
    • Simulated Divided Lite (SDL) Flat — grids are applied to the exterior of the glass, mimicking the look of individual panes
  • Grid patterns
    • Standard — evenly spaced grids creating a classic look
    • Prairie — grids forming a perimeter around the window, leaving the center clear
    • Marginal — grids placed only in specific sections of the window for a unique design
    • Perimeter marginal — similar to marginal but with grids outlining the window's edge

It’s important to note that not all colors and grid options may be available with all Win-Dor window series. 

Win-Dor Energy Efficiency

​Win-Dor is committed to delivering energy-efficient window solutions that enhance home comfort and contribute to reduced energy consumption. The company’s products incorporate several key features designed to optimize thermal performance and durability, including the following:

  • Vinyl construction — All Win-Dor windows are crafted from 100% virgin vinyl, a material known for its excellent insulating properties. This construction helps maintain consistent indoor temperatures by reducing heat transfer, thereby enhancing overall energy efficiency.
  • Hybrid framing — Win-Dor's unique hybrid construction combines rigid aluminum framing with long-lasting, low-maintenance vinyl capping. This integration offers enhanced structural strength while improving thermal performance, resulting in windows that are both robust and energy-efficient.
  • Energy efficient glass options — Win-Dor provides high-performance glass options designed to improve insulation and regulate indoor temperatures effectively. These glazing solutions help minimize heat loss during colder months and reduce heat gain during warmer periods, leading to lower energy consumption and increased comfort.
  • WinShield® technology — Win-Dor’s proprietary WinShield® technology features a specialty laminate made from multiple layers of durable, highly reflective materials. This laminate enhances heat reflectivity and strength, contributing to the window's overall energy efficiency.

By integrating these advanced features, Win-Dor windows not only enhance the aesthetic appeal of homes but also provide significant energy-saving benefits, which can lead to reduced utility costs and a more comfortable living environment.

Win-Dor Window Warranties

​Win-Dor offers a limited lifetime warranty for its window products, demonstrating a commitment to quality and customer satisfaction. This warranty covers the following window components:

  • Window components — all operating parts, including locks, handles, rollers, and balancers, are warranted against material defects in manufacturing
  • Insulated glass units (IGUs) — protection against seal failures that result in moisture between glass panes
  • Painted or laminated surfaces — painted surfaces are covered for ten years from the purchase date, covering issues like significant cracking, peeling, or blistering

It’s important to note that the Win-Dor limited lifetime warranty doesn’t cover normal wear and tear, natural weathering, or damage resulting from misuse, abuse, or inadequate maintenance. Additionally, Win-Dor warranty coverage doesn’t extend to alterations or modifications made post-installation, including the application of tints, films, or improper cleaning agents.​

Expansive Authorized Dealer Network

Win-Dor has an expansive authorized dealer network, ensuring that more homeowners across the country have access to the company’s window products. To find an authorized dealer near you, you can initiate a search on the Win-Dor website or you can call and speak with a Win-Dor representative.

Currently, Win-Dor has authorized dealers in the following 30 states:

  • Arizona
  • California
  • Colorado
  • Connecticut
  • Georgia
  • Hawaii
  • Idaho
  • Illinois
  • Iowa
  • Kansas
  • Louisiana
  • Massachusetts
  • Michigan
  • Mississippi
  • Missouri
  • Montana
  • Nebraska
  • Nevada
  • New Mexico
  • New Jersey
  • New York
  • North Carolina
  • Ohio
  • Oklahoma
  • Oregon
  • South Carolina
  • Texas
  • Utah
  • Washington
  • Wisconsin

Unfortunately, if you don’t reside in any of the states listed above, Win-Dor’s window products may not be available to you.

Free Consultations

If you’re interested in Win-Dor’s window products, you can request a free consultation on the company’s website. You’ll be required to provide some basic contact information and details about the window products you’re interested in. After submitting this information, you’ll be contacted by a Win-Dor representative to schedule a time for your consultation.

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The Bad

  • No In-House Window Installation Services
  • No Financing Options

No In-House Window Installation Services

Win-Dor is a window manufacturer and doesn’t provide in-house installation services. For this reason, the company has an expansive dealer network that is authorized to install Win-Dor products across the country. For some customers this may be a drawback as they might prefer to have installations done by the manufacturer itself. However, it isn’t common for window manufacturers to offer installation services, as their service area would be limited to the area in which they are headquartered, significantly limiting the company’s business opportunities.

No Financing Options

Win-Dor doesn’t offer any financing options. Some of the company’s authorized dealers may offer financing, but you’ll need to communicate with your dealer directly to determine what options are available, if any.

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The Bottom Line

Win-Dor stands out in the window industry with its innovative hybrid construction, which combines rigid aluminum framing with durable, low-maintenance vinyl capping. This unique approach ensures exceptional structural integrity while enhancing energy efficiency, making Win-Dor windows both long-lasting and easy to maintain. The company's commitment to quality is reflected in its range of window styles, including sliding, single-hung, casement, picture, and folding windows, each designed for smooth operation, durability, and aesthetic appeal. Win-Dor also offers extensive customization options, such as a variety of colors, grid patterns, and its proprietary WinShield® technology, a highly reflective laminate that improves heat resistance and maintains consistent color over time.

Beyond design and durability, Win-Dor prioritizes energy efficiency by incorporating high-performance glass, insulated frames, and advanced materials to minimize heat transfer and enhance indoor comfort. The company backs its products with a limited lifetime warranty, covering key components such as insulated glass units and hardware, while also providing a vast authorized dealer network across 30 states. Although Win-Dor does not offer in-house installation or financing, its expansive dealer partnerships ensure customers can access professional installation and potential financing options through third-party providers. This combination of innovative engineering, customization, and strong warranty support positions Win-Dor as a leader in high-quality, energy-efficient windows.

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Larry Z Huntington Beach, CA

Quality product at a reasonable price.

7 years ago

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