FAQs

Windsor windows and patio doors are designed with energy performance in mind. Many products are available with advanced glass packages that meet or exceed ENERGY STAR® requirements for qualifying climate zones, helping improve year-round comfort while reducing heating and cooling demands.

Energy-efficient windows help reduce unwanted heat transfer, allowing your heating and cooling systems to work more efficiently. Actual savings vary based on your home's age, insulation, climate, and the windows being replaced, but many homeowners experience improved comfort along with lower energy costs.

ENERGY STAR® certified windows meet rigorous energy-efficiency standards established by the U.S. Environmental Protection Agency. Products are independently tested to perform well in specific climate regions, helping maintain more consistent indoor temperatures while reducing energy use.

Low-E, or low-emissivity, glass features a microscopically thin, nearly invisible coating that reflects heat while allowing natural light to pass through. It helps keep homes cooler during the summer, warmer during the winter, and reduces the amount of ultraviolet (UV) light that can fade flooring, furniture, and fabrics.

Argon is a colorless, odorless gas sealed between panes of insulated glass. Because it transfers less heat than air, it improves the insulating performance of the window, helping increase energy efficiency and indoor comfort.

The ideal glass package depends on where you live, your home's orientation, and your energy goals. Windsor offers multiple glazing options engineered for different climates, allowing you to optimize solar heat gain, insulation, and year-round comfort. Your local Windsor dealer can help recommend the best configuration for your project.

Depending on the product collection, Windsor offers Low-E glass, argon gas fills, laminated glass, decorative glass, privacy glass, tempered glass, and other specialty glazing options designed to meet a variety of performance, safety, and aesthetic needs.

Insulated glass consists of two or more panes of glass separated by a sealed air or gas-filled space. This construction helps reduce heat transfer, minimize condensation, improve energy efficiency, and increase overall comfort.

Laminated glass consists of two pieces of glass bonded together with a durable interlayer. It remains intact if broken, making it an excellent choice for impact resistance, enhanced security, noise reduction, and UV protection.

Tempered glass is specially heat-treated to increase strength. If it breaks, it shatters into small, rounded pieces rather than sharp shards, making it a safer choice for areas where building codes require safety glazing.

Yes. Insulated glass, laminated glass, and well-engineered window systems can significantly reduce outside noise compared to older windows. If sound reduction is a priority, your dealer can recommend glass packages specifically designed to improve acoustic performance.

Not necessarily. Modern glass technologies, insulated frames, and advanced coatings allow today's large windows to achieve excellent energy performance while providing expansive views and abundant natural light.

Yes. Low-E glass helps block a significant amount of harmful ultraviolet (UV) rays, which can contribute to fading of hardwood floors, carpeting, artwork, furniture, and fabrics over time.

Yes. Windsor's New Next Dimension® Impact products are engineered to meet demanding coastal performance standards, helping protect homes from high winds, wind-borne debris, outside noise, and harmful UV rays while delivering outstanding everyday performance.

Absolutely. Energy-efficient windows help reduce drafts, minimize hot and cold spots, improve temperature consistency throughout the home, and create a more comfortable indoor environment in every season.

While no window can completely eliminate condensation under every condition, modern insulated glass, warm-edge spacer systems, and high-performance frames can significantly reduce the likelihood of interior condensation compared to older windows.

These ratings help compare window performance. U-Factor measures how well a window prevents heat loss—the lower the number, the better the insulation. Solar Heat Gain Coefficient (SHGC) measures how much solar heat passes through the glass—a lower number blocks more solar heat, while a higher number can be beneficial in colder climates. Visible Transmittance (VT) measures how much natural light enters your home through the glass. Design Pressure (DP) measures a window's ability to withstand wind, water infiltration, and structural loads, making it an important indicator of overall performance and durability.

Triple-pane glass can provide additional insulation, improved comfort, and greater noise reduction in certain climates or applications. Whether it's the right choice depends on your home's location, energy goals, and budget. Your Windsor dealer can help determine whether the added performance justifies the investment for your project.