Valued Partners

Founded in 1978 and family-owned for three generations, Lynden Door is a premier manufacturer of residential, commercial, and architectural interior doors. Based in the beautiful Pacific Northwest, they combine state-of-the-art milling technology with precision craftsmanship to create high-density fiberboard and wood veneer doors suited for nearly every application. From contemporary minimalist designs to traditional wood craftsmanship, Lynden Door offers versatile solutions with industry-leading warranties and TSCA Title VI green building certifications.

Since 1994, Plastpro has been the industry leader in premium fiberglass exterior doors, featuring innovative HydroShield Technology that protects against moisture infiltration, warping, and delamination. Based in Los Angeles with a state-of-the-art manufacturing facility in Ohio, Plastpro combines the elegance of wood doors with the strength and durability of steel, offering superior energy efficiency and security. Their doors require minimal maintenance while providing longer warranties and enhanced performance compared to traditional wood or steel alternatives.

Nestled in the scenic Rogue Valley of southern Oregon since 1985, Rogue Valley Door is America’s largest manufacturer of premium wood doors. Located among towering Douglas firs and Ponderosa pines, they handcraft exterior, interior, and custom doors using some of the world’s finest lumber. This family-owned company takes pride in sustainable forestry practices and offers an extensive selection of wood species and decorative glass options, creating doors that serve as distinctive design elements for custom homes and architectural projects.

Founded in 1995 and acquired by Marvin in 2015, TruStile is the industry leader in made-to-order architectural interior doors for high-end residential and commercial markets. Based in Denver, Colorado, TruStile offers over 400 door styles in MDF or 20 standard wood species with virtually endless customization options including glass, resin, metal, and leather panel inserts. Their “Driven by Design” philosophy and true stile-and-rail construction create doors that serve as indispensable interior design elements, transforming rooms with superior craftsmanship and the shortest lead times in the industry.

Founded in 1912 and family-owned for over 110 years, Marvin is a premier manufacturer of made-to-order wood and clad wood windows and doors. Based in Warroad, Minnesota, with over 7,000 employees across 16 cities, Marvin creates windows and doors inspired by how people live. Their extensive product portfolio includes Signature, Elevate, and Essential lines, offering exceptional solutions for any project with a focus on helping people make space for what matters most. Marvin’s commitment to innovation, sustainability, and community has earned them recognition as an industry thought leader.

After 75 years of superior quality and custom craftsmanship, Kolbe Windows & Doors is known for professional-grade windows and doors built to higher standards. Based in Wisconsin, Kolbe specializes in made-to-order products with virtually endless customization opportunities for residential and commercial projects. Their award-winning VistaLuxe® Collection is the only product line specifically designed for contemporary aesthetics, while their Ultra Series offers versatility for both traditional and modern designs. Kolbe’s focus on innovation and attention to detail makes them the choice for architects and discerning individuals who care about both the big picture and the smallest detail.

Founded in 1959 and based in Phoenix, Arizona, Western Window Systems is a leading manufacturer of moving glass walls and windows that seamlessly merge indoor and outdoor spaces. Part of the MITER Brands portfolio, they specialize in multi-slide doors, bi-fold systems, and large-format windows designed for contemporary living. Their American-made products feature innovative technology, custom sizing capabilities up to 12 feet in height, and award-winning designs that have earned recognition from Good Housekeeping and Builder & Developer magazines. Western Window Systems serves residential, commercial, and volume markets throughout the United States, Canada, and Mexico.

Founded in 1949 by husband-and-wife team Bud and Marge Knoll, Quaker Windows & Doors is a leading manufacturer headquartered in Freeburg, Missouri. Now guided by second-generation, all-female ownership, the company has grown to employ over 1,000 people across multiple locations and earned recognition as Missouri’s Best Large Employer. Quaker manufactures residential, commercial, and luxury windows and doors in vinyl, wood, and aluminum, featuring their patented OptiCore technology for enhanced thermal, structural, and sound performance. Named to the Inc. 5000 fastest-growing companies list, Quaker continues to pioneer innovative products while maintaining their foundational commitment to detailed workmanship and responsive service.

Founded in 1958 by Maurice Milgard Jr. and his son Gary in Tacoma, Washington, Milgard has grown to become the number one window brand in the western United States. Now part of the MITER Brands family through acquisition by MI Windows and Doors, Milgard offers a complete line of vinyl, wood, fiberglass, and aluminum windows and patio doors backed by a Full Lifetime Warranty including parts and labor. With manufacturing plants in California, Colorado, Oregon, Texas, and Washington, and over 3,300 points of distribution, Milgard has earned national recognition from Builder Magazine and JD Power & Associates for quality and customer satisfaction in the replacement and custom-home markets.

Founded in 1947 as a window-screening business in Pennsylvania, MI Windows and Doors has evolved into one of the nation’s largest manufacturers of precision-built, energy-efficient vinyl and aluminum windows and sliding patio doors. With a family-first culture and entrepreneurial spirit, MI serves both new construction and replacement markets through manufacturing facilities in Arizona, Pennsylvania, and Texas. Recently named a Top 10 Company by Best Company with a 4.6-star rating, MI is known for its manufacturing throughput efficiency, limited lifetime warranties, and commitment to quality backed by over 75 years of innovation. The company operates under the MITER Brands portfolio, providing coast-to-coast coverage across the United States.

Based in Oceanside, California, LaCantina Doors is a pioneer in designing and manufacturing large opening door systems that create seamless indoor-outdoor living experiences. Acquired by JELD-WEN in 2015, LaCantina specializes in folding doors, multi-slide systems, swing doors, and integrated screening solutions, all engineered for performance, aesthetics, and durability. Their innovative products, including the award-winning V2 Folding Door with ultra-thin stiles and rails, cater to luxury residential and commercial markets. Designed and manufactured in California, LaCantina doors have contributed to award-winning architectural projects ranging from residential homes to commercial facilities, all backed by industry-leading warranties and a commitment to connecting people with their surroundings.