National Fenestration Rating Council | NFRC is the leader in energy performance information, and certified ratings for wintion, educadows, doors and skylights..
NFRC provides trusted ratings and certification for the energy performance of windows, doors, and skylights to help you make informed, energy-wise choices.
Find certified energy-efficient windows and doors
The National Fenestration Rating Council (NFRC) is your go-to resource for unbiased information about the energy performance of windows, doors, and skylights. As a nonprofit certification body, NFRC puts consumer confidence first by ensuring products are tested and rated using rigorous, science-based methods.
On the site, you can search a directory of certified products, access tools to help you choose the right windows for your home, and learn more about the importance of energy efficiency. Whether you're a homeowner looking to upgrade or an industry professional needing compliance resources, NFRC offers clear, credible ratings to guide your decisions.
With its focus on transparency and environmental impact, the NFRC helps you make choices that benefit both your comfort and your energy bills. You'll also find support, educational materials, and ways to connect with the wider community focused on energy-smart building products.
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