Energy star eco-friendly windows

ENERGY STAR is a joint program of the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy helping us all save money and protect the environment through energy efficient products and practices. Results are already adding up. Americans, with the help of the ENERGY STAR program, saved enough energy in 2007 alone to avoid greenhouse gas emissions equivalent to those from 27 million cars – all while saving $16 billion on their utility bills.

energy bill savings

Energy efficient choices can save families about a third on their energy bill and similar savings on greenhouse gas emissions, without sacrificing features, style, or comfort. ENERGY STAR helps you make the energy efficient choice.

Tomorrow’s windows, today

OKNA Windows values the importance of providing customers with one of the most improved energy-efficient windows on the market. That’s why their innovative energy conservation technology already outperforms ENERGY STAR’s more stringent certification standards implemented in 2010.

for the home

When looking for new household products, look for the ENERGY STAR seal. They meet strict energy efficiency guidelines set by the EPA and US Department of Energy. When looking to make larger improvements to your home, the EPA offers tools and resources to help you plan and undertake projects to reduce your energy bills and improve the comfort of your home. Since the energy efficient performance of windows, doors, and skylights varies by climate, product recommendations are given four U.S. climate zones.

Green window-spacer technology

OKNA Windows spacers insulate the edge of the glass better than solid foam or metal spacers. Better insulating spacers improve the temperature of the glass, and warmer glass makes you feel more comfortable while using less energy and producing less carbon dioxide pollution.

Window types offered:

  • Single-hung
  • Double-hung
  • Casement/awning
  • Bay & Bow
  • Patio doors
  • Sliding
  • Hopper windows
  • Picture/custom windows


Visit Okna Windows for more information about their eco-friendly windows.