Double-Hung Windows in Glendale, CA

4000 Series Double Hung

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. The ultimate choice for beauty, comfort and energy efficiency. The 4000 Series windows 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

Best-in-Class Performance Features:

• Reinforced narrow silhouette frame and sash profiles make a statement with their low-profile design. The result is a beautiful and expanded glass area. At the same time, internal chambers increase structural integrity, rigidity and energy efficiency.
• Composite meeting-rail reinforcement allows for secure mounting of hardware; the non-conductive material helps reduce the transfer of energy.
• End-of-throw cam shift locking delivers increased strength and protection to the recessed lock. It also includes an “unlocked” indicator.
• The smooth and uniform, true sloped sill quickly directs water runoff without the use of weep holes, keeping the exterior of the window clean and attractive.
• Our telescoping sill dam delivers a triple payoff: protection from air and water infiltration, increased structural stability and enhanced beauty.
• When extreme wind and weather hit, our proprietary sill interlock stands strong. Traditional sloped sill designs can allow the sash to bow during powerful winds, but with our interlocking sash-to-sill technology, the sash is channeled firmly into the window frame for a unified wall of strength.
• Our innovative screen bulb seal creates a snug fit that eliminates light and insect penetration between the screen and frame. It also aids in easy screen installation and removal.

Additional Sliding Window Features:

• Sashes glide horizontally for easy opening and closing.
• Both sashes lift out for convenient cleaning.
• Nylon-encased dual brass roller system for smooth gliding performance.

Insulated Glass Packages to Meet Your Needs.

Maximize your energy savings by choosing a high-performance SolarZone™ insulated glass† package to meet your specific climate challenges. The lower the U-Value, the less energy you’ll need to heat your home. The lower the Solar Heat Gain Coefficient (SHGC), the more you’ll conserve on air-conditioning.

6000 Series Triple Pane

Featuring the same slim frame as the 4000 Series Double Hung, the 6000 Series Triple Pane window maximizes energy savings. Triple-pane glass systems deliver an added layer of protection to block energy loss. Their precision-engineered construction features a 1″ thick glass unit, three panes of single-strength glass, two surfaces of Low-E (low-emissivity) technology, two spaces of argon gas, along with the SolarZone ThermD Intercept® Stainless Steel Spacer System for an ultra-efficient energy-saving shield. This thermally optimized glass system provides a more balanced, comfortable indoor climate, while also reducing outside noise. Best yet, 6000 Series windows are covered by Window World of Glendale’s impressive Lifetime Limited Warranty for complete peace-of-mind.

• Argon is an insulating gas between the glass panes that acts as a thermal barrier on energy loss, counteracting heat and cold conduction. Argon gas also helps block noise infiltration for a quieter indoor climate.
• Low-E Glass insulating technology features a virtually clear, metallic coating that acts as a thermal mirror to help keep warm air in during the winter and solar heat out during the summer. Low-E also filters out damaging UV rays that can cause furnishings and carpet to fade.
• SolarZone ThermD Intercept Stainless Steel Spacer features a unique, one-piece U-shaped design that stabilizes the panes of glass and creates a powerful thermal barrier. Stainless steel is impervious to gas transmission and withstands the effects of temperature changes, thus increasing gas retention and alleviating stress on the sealant bond to help prevent seal failure.

Advanced Triple-Pane Thermal Protection.

Comparing one glass system to the next can help you determine the best glass for your home and climate challenges. In the table below, U-Factor represents the rate
of heat flow through the window product – the lower the U-Factor, the less energy is needed to heat a home. The SHGC (Solar Heat Gain Coefficient) represents the solar heat penetrating through the window – the lower the number, the more you’ll conserve on air-conditioning use. Window World 4000 Series Windows with SolarZone ThermD TG2 glass technology are 52% more energy-efficient than clear
double-pane glass windows.

Double Hung 6000 Window Technical Details

• Vinyl frames and sashes will never chip, peel, crack or warp, tough and solid with virgin vinyl with color is formulated throughout so the beautiful luster lasts.
• Airtight insulating chambers help reduce conduction and cut high energy bills.
• Quad 4 weatherstripping at the header adds even more protection from the elements.
• Insulated glass unit with optimal air space improves year-round performance.
• PPG Interlock™ Warm Edge Spacer System maximizes window performance and longevity.
• Interlock at sash meeting rails create a super-tight seal against air infiltration, providing security, comfort and well-being.
• Metal 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.
• Sloped sill ensures quick water to drainage to the exterior.
• Hidden Screen track produces clean lines and added beauty.