ENERGY STAR Windows Northern Virginia: Why Certification Matters
Why The ENERGY STAR Badge Is More Than Marketing For homeowners, the ENERGY STAR name matters because it points to verified performance. A certified window has gone through testing and has to meet efficiency thresholds designed for the climate where it will be installed. In Northern Virginia, the climate puts real pressure on windows. Humid summers, colder winter nights, and plenty of sun exposure can expose weak frames, poor seals, and thin glass fast. ENERGY STAR