How much money can I expect to save by installing ENERGY STAR qualified fenestration products?
• Homeowners who replace all of their old windows and doors with ENERGY STAR qualified products will typically save about 7 percent on their energy bills, depending on the number of windows and doors replaced, how old they are, and how much air leakage was occurring. Buyers of new homes with ENERGY STAR qualified fenestration products can save up to 12 percent on their energy bills compared to standard products (the savings tend to be greater for new homes because they are typically larger and have more windows and doors than older homes).
