History of Thermal Industries

With almost 50 years experience in the vinyl window industry, Thermal Industries has developed an extensive line of high quality, energy efficient windows that help millions of homeowners to live more comfortably. As one of the pioneers in the design and manufacture of insulating replacement windows and doors, Thermal Industries has taken this knowledge and expertise a step further to develop new and innovative products, many of which are industry firsts.

• It all began in the early 1960's, when Thermal Industries introduced America to the first custom-vinyl replacement window. Late 1960's, Thermal developed an insulating glass vinyl replacement window with a tilt-in sash design for easy cleaning.

• Late 1970's, Thermal introduced the first custom bow and bay window designs.

• Next, Thermal captured the distinct textured look of stained glass in our insulating glass units with the DreamGlas® Gallery Collection, enabling homeowners to add a unique, decorative flair to their homes.

• The new millennium began for Thermal Industries with the creation of the ASPECT (Advanced Structural Performance Engineering Technology) family of double hung window products. The design of parallel I-beam frame construction and enhanced water management create a system that exceeds NFRC and AAMA standards for air and water infiltration.

Today, Thermal Industries has become part of the Atrium Family of Brands. Together, these companies make Atrium the largest manufacturer of vinyl and aluminum windows and patio doors in North America, producing 4.5 windows and patio doors every second, every day of the year. That's 14.5 million windows and doors every year! Why not let one of those be yours today!

Quaker Windows and Doors

More than 50 years of the same quality, commitment and dedication are guaranteed to you with your purchase of Quaker windows and doors. Founded in 1949 and based in Freeburg, Missouri, the Quaker family-owned corporation was built on a business philosophy of quality and customer satisfaction that continues today.  Marge and Harold “Bud” Knoll dedicated themselves to building a business destined to be a leader in the window and door industry.

“A Tradition of Quality” has always been, and will continue to be, our motto and pledge. We constantly strive to build on our reputation for quality along with our history and passion for continual improvement and product development. Quaker’s second-generation owners are committed to making your new windows on the world the finest possible product available.

Classic Fit Double Hung

If you're remodeling, you can preserve the character of your home with Classic Fit historically correct wood windows. While duplicating the charm of your original windows, you also improve energy efficiency and performance.

Because Classic Fit replacement windows are manufactured as a complete window, sealed and airtight, they look and perform better than any window replacement kit. These custom-sized replacements are easily inserted into your existing frame opening and can be stained or painted to match your existing design. With nothing to assemble and 1/4" increments for custom sizing, they install quickly and easily with no disturbance to the interior or exterior of your home.

The exterior is aluminum clad, maintenance free and does not require painting. Classic Fit insulated glass and solid wood frames are energy efficient and durable. Easy open tilt latches make for easy cleaning.




  Vinyl Replacement Windows
The AdvantEdge is a versatile window that is as practical ast is beautiful. Its design creates a clean, simple look and provides a maximized viewing area. Convenient features minimize maintenance, while a wide range of options allow you to customize the windows to match your décor.