Folding Door Technology - Available from Solsetter

Before Alteration After Alteration

Durable, Innovative, and Low Maintenance

Most manufacturers use only vinyl, aluminum, or wood when designing their folding door systems, however, WinDor offers customers a state-of-the-art combination of different high-quality materials. They have combined both vinyl and aluminum to provide multi-slide doors that are far superior to their competitor's older designs.


The WinDor Folding Solution

The solution which combines both materials has allowed WinDor to of have an energy-efficient and rigid door that never corrodes? WinDor 3750 folding doors combine the strength of rigid aluminum framing with the low maintenance of vinyl capping.

This creates the best high-quality bifold door in America, but you don't have to just take our word on it. Take a look at our performance and testing results below.

Glass Options

Extruded Colors


Standard Colors

Dk Bronze (Coated)
Black (Coated)
Terra Tone (Coated)

Semi-Custom Colors

Silver (Coated)
Beige (Coated)
Taupe (Coated)

WinShield® Colors

Jet Black (WinShield®)

Extruded Colors

Every window and door manufactured by Win-Dor Systems is made from the highest quality 100% virgin vinyl available, extruded in either white or beige. Colors are consistent throughout the products, hardened to stand up to the harshest elements and will never peel, chip or need paint.


Standard Colors

A variety of popular painted exterior coating options are available. Each color is bonded onto the vinyl surface and adds an element of heat reflectivity. All of our painted finishes are scratch and chip resistant, made to withstand the elements and formulated for optimal energy efficiency.


Semi-Custom Colors

Additional exterior colors are available. The semi-custom color family of colors may require longer production lead-times. Please consult the factory for additional information.


WinShield® Colors Colors

WinShield® is a specialty laminate made from multiple layers of durable and highly reflective materials. Each layer adds to its strength and heat reflectivity. The laminate is bonded to the vinyl using a specialized process. WinShield’s unique technology performs incredibly well even in extreme environments. It is virtually maintenance-free, much more durable than traditional paints used by others, and provides a consistent color that can be carried across multiple products reducing variations.