The window industry includes a wide range of manufacturers that specialize in different window solutions. You can find manufacturers specializing in vinyl windows, aluminum windows, sash windows, wood windows, and more. As we enter 2025, these manufacturers compete for the top spot, with a few that stand out because of their innovation, craftsmanship, and quality.
When selecting the proper windows, it’s crucial to understand, which is the best window manufacturer that suits your needs. Whether looking for windows for your home or commercial projects, you should check the following ten window manufacturers.
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What makes a window manufacturer the best option?
When choosing the best window manufacturer, various factors come into play. One of the factors that makes a window manufacturer the best is their product quality. The manufacturer should offer high-quality windows through sturdy materials and seamless construction. That means that the window will not only be aesthetically pleasing but also contain excellent performance by having a strong seal, excellent insulating properties, and minimal air leakage.
Another factor would be their reputation and experience because of their track record and customer testimonials. Because of their expertise, they can offer better quality control, innovative technology, and certifications. Manufacturers with lasting experience also tend to give more competitive pricing. Lastly, the best window manufacturer is more flexible with their products and services, offering better customization.
10 Best Window Manufacturers in 2025
Here is the list of the 10 best window manufacturers recognized for their quality, innovation, and customer services.
1. Andersen Windows & Doors
- Location: Bayport, Minnesota, USA
- Company Type: Manufacturing
- Year founded: 1903
- The number of employees: 10,000+
- Main Products: Windows, Luxury Windows, Window Replacement, Specialty Windows, and Doors
Andersen Windows & Doors was established in 1903. For more than 120 years, it has supplied premium windows and doors across the United States. Andersen provides a comprehensive range of product solutions for the residential, lighting, and home improvement markets. It also contains over 225 patented products supplied through various distribution channels and businesses like The Home Depot.
Andersen is committed to offering the highest standard of products and services. This commitment allows them to streamline their products, particularly specialized ones such as casement, double-hung, and sliding windows. They have even expanded, with over 13,000 employees across North America and Europe, to ensure efficient production and expansion.
2. Mannlee
- Location: Foshan, Guangdong, China
- Company Type: Manufacturing
- Year founded: 1998
- The number of employees: 300
- Main Products: Windows, Doors, and Energy-Efficient Products
Mannlee is one of the best window manufacturers, known for providing the highest standard of products and services. With over 26 years of experience, they have continuously dominated the window market worldwide. Mannlee achieved all these through highly efficient production lines and strict quality testing. They also have a team of experts to ensure that every product meets the standard and customer’s requirements.
Mannlee employs a meticulous process that allows them to offer a wide range of standard products and customization services for Windows. Some of the windows they offer are garden windows, jalousie windows, and commercial windows. Such standards exceed for specialized projects as they will employ client collaboration to cater to their customization requirements. Mannlee ensures a satisfactory experience for all their window buyers worldwide.
3. Pella Corporation
- Location: Pella, Iowa, USA
- Company Type: Manufacturing
- Year founded: 1925
- The number of employees: 10,000+
- Main Products: Windows, Doors, and Specialty Products
Pella Corporation started its company in 1925. Since then, they have built their company to become an industry leader in innovation and design. Pella tops the industry by offering a range of quality windows and doors. These products, particularly the windows, are further categorized through style, materials, and parts.
With over 20 manufacturing facilities and more than 10,000 employees across the United States and Canada, Pella’s product variations and organization are continuously growing. The company has established a solid reputation for creating durable and aesthetic products that elevate the functionality and visuals of any space. These window and door solutions fit a range of architectural styles while satisfying the needs of various markets.
4. Jeld-Wen
- Location: Charlotte, North Carolina, USA
- Company Type: Manufacturing
- Year founded: 1960
- The number of employees: 10,000+
- Main Products: Windows, Doors, Trim, Panels, and Building Products
Jeld-Wen has a long history of excellence in the window and door industry because of its quality products and services. This company started its journey from a small Oregon millwork factory into having different facilities in 16 countries in North America and Europe. Since 1960, they have continuously produced high-quality, sustainable, and environmentally friendly products.
Jeld-Wen is dedicated to providing innovative and energy-efficient windows that enhance the comfort, aesthetic, and safety of any space. This dedication allows them to strive to use environmentally friendly materials and procedures. All of their windows and doors are also Energy Star certified and adhere to strict quality control.
5. Marvin Windows & Doors
- Location: Warroad, Minnesota, USA
- Company Type: Manufacturing
- Year founded: 1912
- The number of employees: 5,000-10,000
- Main Products: Windows, Doors, and Skylights
Marvin is a family-owned business that manufactures doors, windows, and outdoor fixtures. With over 7,000 workers spread across 16 North American locations, they were able to bring their products and services to the market. Marvin focuses on creating products and services that provide exceptional solutions to its customers, particularly builders, architects, and homeowners. Their expertise is creating modern and innovative windows, doors, and skylights.
In addition, Marvin has established a reputation for quality, innovation, and craftsmanship. All their window and door products are high-performing and energy-efficient. These qualities are achieved by Marvin as they focus on integrating traditional craftsmanship with state-of-the-art technologies.
6. Window World
- Location: North Wilkesboro, North Carolina
- Company Type: Manufacturing
- Year founded: 1995
- The number of employees: 1,000-5,000
- Main Products: Window Replacement, Vinyl Siding, Entry Doors, Patio Doors, Garage Doors, Shutters, and Storm Doors
Window World is one of the best window manufacturers in the United States. Founded in 1995, this company has a goal to provide its customers with premium, affordable, and exceptional products and services. They have continuously innovated, bringing them to over 20,000,000 window sales now. They have also built a strong customer base globally because of their industry-leading products and customer service.
Window World offers specialized products like windows, doors, siding, and shutters accessible across 200 locations. They have expanded their reach because of their developed marketing, new technology, and steady national presence. This reason allows them to maintain their position steadily in the window industry.
7. Harvey Windows and Doors
- Location: Waltham, Massachusetts, USA
- Company Type: Manufacturing
- Year founded: 1961
- The number of employees: 500-1,000
- Main Products: Replacement Windows, Doors, and Accessory Products
Harvey Windows and Doors have more than 60 years of experience, which allows them to prove excellence with their products. All of their products, including windows, doors, and porch enclosures, are created to enhance the beauty and value of any space. Their products are also designed and crafted with their team of experts and manufacturing facilities in the United States.
Harvey has modern manufacturing facilities that produce placement construction windows, doors, and accessories. These facilities are not only innovative but also promote environmentally friendly procedures and in-house testing labs to control their products’ quality. Harvey products are available to various customers at around 300 distribution partner locations.
8. Ply Gem
- Location: Cary, North Carolina, USA
- Company Type: Manufacturing
- Year founded: 1943
- The number of employees: 10,000+
- Main Products: Windows, Doors, Fences, and Rails
Ply Gem is among the best window manufacturers in North America. This company stood out because of its products and services. They offer a wide range of products, such as sidings, fences, stone products, and over 40 building materials. This company also consists of a team of experts who actively help their customers with consultation, design, and construction. With Ply Gem, quality and value will be provided for all kinds of projects, whether for repair, remodeling, or construction.
In addition, Ply Gem is known for producing diverse products that are quality, durable, and energy-efficient. This company continues to innovate by employing advanced manufacturing technology and procedures. Such dedication allows them to gain various certifications, such as ISO 9001 Certification, Energy Star, and more.
9. Loewen
- Location: Steinbach, Manitoba, Canada
- Company Type: Manufacturing
- Year founded: 1905
- The number of employees: 500-1,000
- Main Products: Windows, doors, and accessories
Loewen is a company that specializes in custom exterior products and artisan-made doors and windows. They were able to achieve such exquisiteness with their products and services because they house architects, engineers, designers, and technology consultants. These experts work together to ensure doors and windows will be manufactured at the highest quality.
Loewen was able to place their company as a top manufacturer of premium windows and doors for the luxury market globally. They have become prominent for creating luxurious and durable windows and doors by using high-quality materials and state-of-the-art manufacturing processes. They were also able to place their company in the industry through the recognition and awards they gained because of design excellence and innovation.
10. Velux USA
- Location: Horsholm, Denmark
- Company Type: Manufacturing
- Year founded: 1941
- The number of employees: 10,000+
- Main Products: Windows, Roof Windows, Doors, and Skylights
Velux has been in the window and door industry for over 60 years. This company aims to improve people’s living conditions by creating products that maximize natural airflow in the space. Velux also has a wide range of roof windows, modular skylights, roller shutters, ornamental blinds, and sunscreening products.
They were able to achieve this reach because they have manufacturing facilities in over 35 countries and employ over about 11,000 people worldwide. Velux has become a reputable manufacturer in the residential and commercial market because of its creative window solutions. All of their products meet a high standard as they enhance indoor air quality, energy efficiency, and life quality.
Guide on How to Find Window Manufacturer
Finding the best window manufacturer can be overwhelming, even for professionals. To help you, we have created a simple guide.
Research Window Manufacturers Online
The first thing you must do is research window manufacturers online. There is a wide range of manufacturers globally, so you have to be mindful of spotting the ones that will truly deliver results. You can narrow down your research by using keywords like “best window manufacturer,” “new windows,” or “replacement windows” while adding the name of your city. You can also use various blogs that list top manufacturers for doors, windows, and more.
Check Multiple Websites
Once you obtain a preliminary list of manufacturers, you must check their websites. When checking their websites, you must search for detailed information like their products, projects, or warranties. Their website should also state their company history, location, and contact information.
Review Testimonials
When searching for the best window manufacturers, tracking their customers’ reviews and testimonials would help. Manufacturers that deliver quality products and services will make their customers satisfied. You can track down these testimonials on their websites or across various platforms like Google and Yelp.
Visit Showrooms
Visiting showrooms is another excellent option to see the quality and reliability of a manufacturer. Most manufacturers would have showroom locations worldwide. So, you must visit the one near you.
Assess Their Expertise
Manufacturers might provide a wide range of products and services but fail to adhere to the highest standard. When finding a window manufacturer, check how extensive their knowledge is with their products and services. For instance, look for their blog guide for a specific product like upvc windows or look for product comparisons like vinyl vs. aluminum windows.
Ways How to Identify Window Manufacturers
Identifying your window manufacturer can be challenging, but there are various methods you can use. Here are some of the ways to identify a window manufacturer:
Search the Logo
Manufacturers contain a unique logo that represents their brand. This logo is engraved on the window for easy identification. If your windows are made of fiberglass or wood, you might find the logo burned into the frame. If it’s vinyl or aluminum, you might find the logo on the metal pane.
Look for ID Stickers
One of the ways to identify a window manufacturer is to look for the ID stickers. These ID stickers contain the manufacturer’s brand name or number sequence. You can also find them on the bottom side, upper side, or rail of a window.
Check for Certifications and Purchase Documents
If there are no logos or stickers, you should check the documents when purchasing windows. These documents will contain the manufacturer’s name and other important information. If not, you can check some organizations that validate or certify window manufacturers, like the National Accreditation & Management Institute (NAMI), the American Architectural Manufacturers Association (AAMA), or Energy Star.
Final Thoughts
Before choosing your window, cross-checking the products with their manufacturer would help you choose the best one. There are thousands of window manufacturers in the industry coming from different countries like China and Poland. There are also manufacturers from those specializing in residential manufacturing to customized manufacturing. These options can be quite overwhelming, especially if you want to choose the best window manufacturer.
To start, these 10 best window manufacturers would help you narrow down your options. If you need more help, Mannlee created a series of lists tailored to specific window industries. Don’t forget to check them out!
You may enjoy these related articles:
- Top 10 custom window manufacturers in 2025
- Top 10 sash window manufacturers in 2025
- Top 10 vinyl window manufacturers in 2025
- Top 10 aluminum window manufacturers in 2025
- Top 10 residential window manufacturers in 2025
- Top 10 replacement window manufacturers in 2025
- Top 10 wood window manufacturers in 2025
