ComfortWorld 4000 Series
4000 Series Double Hung Replacement Window4000 Series windows from Window World are beautiful as well as remarkably solid, sturdy and stable. Our beveled mainframe design is exceptionally slim and refined. Their sleek construction easily complements any type of architecture.
You will find that 4000 Series vinyl frames will never chip, peel, crack or warp, and are maintenance free. The 4000 Series tilt-in sashes make cleaning a pleasure due to our effortless tilt latch.
The ultimate choice for beauty, comfort and energy efficiency. The 4000 Series windows help to pay for themselves through lower energy costs, freedom from maintenance and increased property value. Our impressive Lifetime Limited Warranty* delivers the peace-of-mind you would expect from an industry leader.
4000 Series Features
- Fusion-welded sash & mainframe adds strength and rigidity.
- Fully extruded lift rail adds strength, durability and ease of operation
- Hidden screen track produces clean lines and added beauty
- Protective hollow bulb seal at sill for added weather protection
Technical Details of a 4000 Series Double Hung Replacement Window
- Vinyl frames and sashes will never chip, peel, crack or warp, Made tough and solid with virgin vinyl (PVC) resin, their color is formulated throughout so the beautiful luster lasts.
- Multi-chambered sash & mainframe create insulating air spaces for thermal efficiency.
- Insulated glass unit with optimal air space improves year-round performance.
- PPG Interlock™ Warm Edge Spacer System maximizes performance and Longevity.
- Interlock at sash meeting rails add to your sense of security, comfort and well-being.
- Protective bulb seal helps to prevent air infiltration at the meeting rail.
- Drop-in glazing for extra protection from the elements.
- Fully extruded lift rails provide strength and stability for easy operation.
- Sloped sill forces water to drain to the exterior of the window.
- Hidden Screen track for clean lines and added beauty.
- Protective bulb seal at the sill provides extra protection from the elements-sealing tightly against dust, dirt and air infiltration.
- Fusion-welded frames and sashes add strength and rigidity.
- Dual ventilator locks provide a safe, secure way to keep windows open for proper ventilation.
- Full balance covers help protect against air infiltration while adding a finished look to the window frame.
- Constant force balance system eliminates sash cords, weights and pulleys. you’ll benefit from smooth, comfortable fingertip operation.
- Tilt-in top and bottom sashes make cleaning safe and easy from inside the home.
- Double barrier-fin weatherstripping at sash sides help keep out dirt and noise, and protect against air infiltration.
- Beveled exterior profile gives windows a clean, elegant look.