Top 5 Biggest Window Companies in the Industry

Windows are an essential component of any building, providing natural light, ventilation, and insulation. When it comes to choosing the right windows, there are countless options available on the market. However, not all window companies are created equal. In this article, we will explore the top 5 biggest window companies in the industry that are renowned for their quality, innovation, and customer satisfaction.

1. ABC Windows

ABC Windows has been a market leader for over three decades, offering a wide range of window styles to cater to various architectural designs and customer preferences. Their windows are known for their energy efficiency, durability, and stylish designs. With an extensive network of dealers and installers, ABC Windows has established a strong presence in both the residential and commercial sectors.

2. XYZ Windows

XYZ Windows is synonymous with premium quality and exceptional craftsmanship. They specialize in creating custom windows tailored to each client's unique requirements. Whether it's a historic restoration project or a modern architectural masterpiece, XYZ Windows has the expertise to deliver impeccable results. Their commitment to innovation is evident in their state-of-the-art production facilities and cutting-edge designs.

3. DEF Windows

DEF Windows is a global leader in the window industry, known for its advanced technologies and sustainable practices. They have earned a strong reputation for their eco-friendly manufacturing processes and energy-efficient window solutions. DEF Windows also offers a wide selection of customizable options, allowing customers to personalize their windows to match their style and preferences.

4. GHI Windows

GHI Windows prides itself on combining functionality with elegance. Their windows not only provide exceptional performance but also enhance the aesthetics of any space. GHI Windows offers an extensive range of window types, including casement, double-hung, and awning windows, each designed to meet the highest standards of quality and style. With a focus on customer satisfaction, GHI Windows has built a loyal customer base over the years.

5. JKL Windows

JKL Windows is a leading window company renowned for its commitment to innovation and technological advancements. They constantly push the boundaries of window design and performance, introducing new materials and features that redefine industry standards. JKL Windows' dedication to research and development ensures that customers have access to the most advanced window solutions available.

When choosing the right windows for your project, it is crucial to consider factors such as energy efficiency, durability, design options, and customer support. The top 5 biggest window companies mentioned in this article have excelled in these areas and have established themselves as industry leaders. Whether you are a homeowner, architect, or contractor, these companies offer a wide range of options to meet your specific needs.

Remember, as the window industry continues to evolve, staying informed about the latest trends and advancements will help you make the best decision for your project. So, explore the offerings of these top window companies and choose the one that aligns with your requirements, style, and budget.

biggest window companies


Freedom to dream "truly custom-made"

Doorwin provides one-stop solution for professional windows doors manufacturer and installation. We have been serving customers with our high quality and branded products in United States, Asia and worldwide.


With Doorwin, you can have all of this with a simple move. This is because we believe that the best way to achieve your goals is by working with
our customers to find solutions to their problems.Our team of designers and engineers are dedicated to solving these problems by creating
products that are designed to be easy to install, easy to maintain and repair, while being cost-effective.

Certifications & Test Reports

Over 50 USA & EU fenestration certifications and test reports.

25 Years Warranty

TPS glazing ensures that no air leakage and fogging issues for 25 years warranty.

We are Experienced

More than 4000 high-end bespoke fenestration projects in North America.

Best Bargain You Get

Doorwin products meanwhile with half price compared with your local dealers.


Our team of experts will work with you to develop a bespoke plan that fits your needs. We take a holistic approach to the planning process, combining our technical expertise with our knowledge of customer requirements and project constraints.

Full Custom Fenestration System

Find the true freedom to bespoke

Doorwin is the manufacturer of full custom fenestration systems, and we're here for you. We provide you with the freedom to design your windows, doors, and more with no additional charge for special shapes, hardware styles, and color choices. Your vision is our inspiration; our job is to make it a reality.
Our products are made to pass your local inspector's verification and are built under USA building codes so you can rest assured that they are safe and sturdy. Choose Doorwin to experience the best bespoke fenestration service available today!

Design Assistance Service

From manufacturing to delivery on site

We take care of the entire process for you, from beginning to end. We have our own expertise and will provide free-charge design development & contract documentation with CAD and BIM drawings. In addition to elevation details and installation design, we will double-check that the products match the drawings and project specifications through video or pictures. We'll help you specify the delivery schedule and logistics service whilst keeping costs to a minimum.

The Safest Delivery

5 layers packaging guarantee 0 damage

We're proud to be one of the top exporters of windows and doors to the United States. We pack each window individually and in four layers, and finally into wooden boxes with non-fumigation, and at the same time, there will be a lot of shockproof measures in the container to protect your items. We ensure that your products will arrive at the sites in good condition after long-distance transportation.
Doorwin has been exporting tens of millions of dollars of windows and doors to the U.S. every year, and we know that improper packaging can cause breakage of the product when it arrives on site. What the client concerns, we concern most.


Doorwin experts are experienced in working with architects, builders and homeowners to ensre your vision becomes a reality.Welcome to visit a showroom, ask questions about product pricing, request a quote and more.

Through Collaborations And Partnerships,we Amplify Our Impact


What Projects Can We Take?

We are tested by the following standards:
-NFRC (North American Fenestration Rating Council)
-AAMA (American Architectural Manufacturers Association)
-WNMA (Wood National Monument Association)
-CSA101 (Canadian Standards Association)
-I.S.2 (International Standard ISO/IEC 17025)
-A440-11 (Standard for Fire Testing of Door Assemblies for Charging Rooms)


Doorwin is a company that specializes in custom-made doors and windows. We understand that every home is unique, and we are committed to providing you with the highest quality products possible.Our products are inspired by different lifestyles, and we respect your vision when designing them. Our designs are made specifically for you, so there is no additional cost. We work across styles and profiles, whether you're remodeling an old house or designing your new dream home. Find inspirations here and we will fulfill all your imaginations.