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Comfort Levels

Along with their attractive designs and superior structural integrity, Quaker commercial windows and doors offer advanced thermal performance features suitable for nearly every project imaginable.

Energy Efficient Solutions for All Climates

Quaker commercial windows and doors are tested to ensure accurate structural performance figures are achieved.

By assisting with heat retention in northern zones and minimizing it in southern zones, Quaker products increase the energy efficiency of new buildings and can considerably reduce heating and cooling costs.

National Fenestration Rating Council Energy Performance Labels

To see what products are suitable for your location, Quaker commercial windows and doors are equipped with National Fenestration Rating Council (NFRC) stickers that show their thermal performance test results. They include:


Also known as U-Value, this measures how well a window or door prevents heat from escaping. The lower the U-Factor, the better the window insulates.


Measures heat transfer from the sun through the window or door. A low SHGC score means less solar heat enters the building.

Air Leakage:

Measures the amount of air that passes through the product. A low air leakage result means the building will be less prone to drafts.

Learn More

For specific product information and test results, view our commercial product list or contact our expert staff who are prepared to help with any inquiries.