3750 Multi Slide Door Technology Exclusively from Win-Dor

Win-Dor's innovative, durable and low-maintenance 3750 Series multi-slide door system is considered among the highest quality multi-slide doors in America.

Our multi-slide doors are extremely energy efficient, very strong and structurally sound. Our unique blend of rigid aluminum framing with a long-lasting, low maintenance vinyl capping creates a unique combination not available from other manufacturers.

We offer a very clean 3 3/4" x 13/4" sash which measures the same as our folding doors. This allows for a consistent look when mixing and matching systems in the same home. Our 17/8" rollers coupled with our extruded track system allows for easy operations when opening and closing.

ALL OF THESE FEATURES ADD UP TO A DOOR THAT PEOPLE LOVE.
Innovative, Durable and Low Maintenance

Locks and Handles


Grid Types


Grid Options


Glass Options



A VARIETY OF COLOR OPTIONS
Popular Choices, Energy Efficient and Low Maintenance

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 coating options are available. Each color is baked 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 colors are available. The semi-custom color family of colors may require longer production lead-times. Please consult the factory for additional information.

WinShieldtm Colors

WinShield™ is a foil laminate made from multiple layers of durable and highly reflective materials. Each layer adds to its strength and energy efficiency. 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, many times more durable than traditional paints used by others, and provides a consistent color that can be carried across multiple products reducing variations..