Window World 4000 Series windows are timeless, blending sleek design with long-lasting performance. The beveled mainframe design gives these windows a refined look that complements any home. Crafted from virgin vinyl, Window World 4000 Series windows are built to last — they’ll never chip, peel, crack, or warp. Best of all, these windows help pay for themselves through lower energy costs, minimal maintenance, and increased property value.
The Window World 4000 Series’s energy efficiency is backed by its ENERGY STAR® rating, ensuring your home stays comfortable year-round while reducing utility costs. Choosing Window World ENERGY STAR-certified windows means making a smart investment in performance and sustainability.
Key Features of Window World 4000 Series Windows
Upgrade your home with Window World 4000 Series windows — where classic style meets energy efficiency.
If you’re looking for new ways to improve your home’s energy efficiency, look no further. Energy-efficient replacement products help lower your energy bills, while keeping your home more comfortable year round.
With traditional single-hung windows, only the bottom sashes move. Double-hung windows allow both the top and bottom sashes to open and close, allowing you to customize the ventilation.
Absolutely! Experience savings on your heating and cooling expenses throughout the year with the SolarZone™ TG2 Elite™ insulated glass package. During warmer months, it effectively reduces solar heat gain, minimizes glare inside your home, and keeps the interior glass cooler. In colder conditions, it offers exceptional thermal performance and ensures warmer glass surfaces indoors, keeping you cozy during winter. Plus, this package is fully compliant with all ENERGY STAR standards.
Our double-hung windows are custom-crafted to match the precise measurements of your home. Reach out to us to discover the size specifications for our various models.
Absolutely! When faced with severe winds and harsh weather, our exclusive sill interlock remains robust. Unlike conventional slope sill designs that may allow the sash to flex under strong winds, our innovative interlocking sash-to-sill system securely channels the sash into the window frame, creating a solid barrier of strength.
Double hung windows from Window World feature convenient tilt-in sashes. This design allows both the upper and lower sashes to tilt inward, making it simple to clean both the inside and outside of your windows. To effectively clean your double hung windows, just follow these steps:
By following these straightforward instructions, you’ll be able to thoroughly clean and maintain every nook and cranny of your double hung windows.
Both styles feature window sashes that move vertically. In single hung windows, only the bottom sash is operable, while the top sash remains fixed in place. In contrast, double hung windows allow both sashes to be opened and closed as needed.
At Window World, every double hung window is expertly installed by our team of factory-trained professionals. Our process includes meticulously setting, leveling, and caulking to guarantee that your new windows fit flawlessly. Discover more about our window installation process.
Double hung windows feature sashes that can both slide, providing the ability to open the window. To access the lower sash, unlock it and slide it upwards. For the upper sash, first unlock the lower sash, then gently lower the upper sash to your preferred height.
To secure your double hung window, it’s essential to ensure that your locks are properly aligned. Confirm that your upper sash is fully raised and your lower sash is completely lowered, so they form a tight seal. This will enable your locks to engage smoothly without any hindrances.