The materials used in the frame and the quality of glass is what makes windows energy efficient .  Double or triple pane windows have two or three layers of glass with argon gas in between them. This helps to reduce the amount of heat that escapes through the window, keeping your home warmer in the winter and cooler in the summer. The airtight, hermetic sealing of the window units prevent air leaks. The glass itself is coated with a low-emissivity coating. As for single pane windows they do not offer as much insulation to the home and may not silence the outside noise. Energy-efficient windows can have various styles and designs to suit your preferences and match your home’s aesthetic. A few benefits are lower energy bills, improved home comfort, reduced UV radiation, reduced condensation, better sound insulation and increased security. Experience the difference!