Sliding Doors

WinGuard® Preferred SGD770 Door

PGT Aluminum Doors

This WinGuardⓇ aluminum sliding glass door is our most popular, and it is one reason why we were recognized as #1 in Quality Patio Doors*. Its smooth operation and extra layer of security makes it a wonderful way to invite the outdoors in through your living room or master bedroom.


Features & Benefits

WinGuard® Aluminum is an impact-resistant line that enhances peace-of-mind. It helps protect your loved ones from severe weather, would-be intruders, and noise pollution. Plus, impact-resistant products can help lower your insurance premium while the overall value of your home increases.

Up to eight glass door panels move horizontally along upper and lower tracks

Expansions of up to 40’ for uninterrupted views and a great source of natural light

Max panel size: 5’w x 8’h or 4’w x 10’h

Max overall opening size: 40’w x 8’h or 32’w x 10’h

Dual-point locking mechanism provides added security by restricting panels from being lifted off the tracks

Heavy-duty tandem rollers allow easy fingertip opening

Hidden installation and assembly screws for a sleek, finished appearance

Corner and pocket door configurations available

Energy Savings

The Winguard Preferred SGD770 Impact Resistant Sliding Glass Doors are designed to provide superior energy savings with their insulated glass and weather stripping features. The insulated glass helps to reduce heat transfer through the door, keeping the interior cool in summer and warm in winter. The weather stripping helps to seal any gaps between the door and frame, preventing air infiltration and increasing energy efficiency. These energy-saving features not only help to reduce energy costs but also provide a comfortable living environment all year round.

Design Options

Frame Colors

White, Bronze, Black, Clear Anodized

Glass Options

Clear, Bronze, Gray, Green, Azure Blue, Solar Cool Bronze, Graylite ll


Schedule Your Free Quote

Let us know what time is convenient for you and we’ll have one of our experts call to set up your home consultation in person or virtually.