Our best-selling Double-Hung Windows are the ultimate choice for beauty, comfort and energy efficiency. Characterized by easy maintenance and classic aesthetic styling, our vinyl double-hung window replacements are an easy choice for improving curb appeal. They even help to pay for themselves through lower energy costs, freedom from maintenance and increased property value.
Features
4000 Series
6000 Series
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- 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
- Covered by Window World's impressive Lifetime Limited Warranty

- Vinyl frame and sashes will never chip, peel, crack or warp.
- Multi-chambered sash and mainframe create insulating air spaces for thermal efficiency.
- Quad 4 weatherstripping at the header adds greater protection from the elements.
- Insulated glass unit featuring double-strength glass with optimal air space improves year-round performance.
- PPG Intercept Warm-Edge Spacer System maximizes thermal efficiency and the life of the insulated glass unit.
- Interlock at sash meeting rails creates a super-tight seal against air infiltration, providing security, comfort and well-being.
- Steel reinforcement adds strength at the meeting rails.
- Drop-in glazing provides energy efficiency as well as interior aesthetic appeal.
- Compression bulb seal at the sill creates an all-season weather barrier sealing tightly against dust, dirt and air infiltration.
- Sloped sill forces water to drain to the exterior of the window.
- Hidden screen track for clean lines and added beauty.
- Fully extruded lift rails provide strength and stability for easy operation.

Models may vary in coastal regions*
Double-Hung Windows From Window World TX
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.4000 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. Our impressive Lifetime Limited Warranty delivers the peace-of-mind you would expect from an industry leader.
6000 Series Windows feature a sloped sill helping to prevent air and water infiltration while maintaining a timeless, detailed appearance. Beveled mainframes on double-hung and sliding windows complement any home style. Best yet, 6000 Series windows are covered by Window World’s impressive Lifetime Limited Warranty for complete peace-of-mind.
The superior performance of 6000 Series windows starts with innovation. Every precision-engineered component contributes to superior energy savings. The multi-chamber design helps trap dead air to produce an effective insulating barrier, while extra-thick, fusion-welded frames and sashes provide superior structural strength and create a permanent barrier against air and moisture infiltration, adding up to greater energy savings and lower utility bills.
Our Double-Hung Window Installation Process
Ready to replace your old windows? Installing new double-hung windows from Window World TX will improve your home's appearance, energy efficiency and value. Contact our friendly team today to learn more about replacement window packages for a full home makeover. We'll help you select the perfect size and style of double-hung windows for your home. Call today to learn more about the American-made double-hung windows San Antonio and Corpus Christi residents prefer!Customer Reviews
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