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Double Hung Windows

  • Convenient operation and an attractive, traditional style
  • Easy to clean with tilt-out upper and lower sashes
  • Versatile with many size and design options

Double Hung Windows Pittsburgh, Pennsylvania

Window detail openDouble hung replacement windows are a classic look that never goes out of style. At Window World of Pittsburgh, we’re proud to offer these timeless options that not only look attractive in your home, but are low maintenance and quality constructed for protection against the elements.

4000 Series Double Hung

WW DH_Sml Med_3D_2XSolid. Beautiful. Stable. These are the best ways to describe the 4000 Series double hung windows from Window World of Pittsburgh. These incredible products will never chip, peel or crack, even after years of wear and tear. Windows from Window World pay for themselves through lower energy costs, freedom from maintenance and increased property value. Not to mention, our impressive Lifetime Limited Warranty* delivers the peace-of-mind you deserve.

4000 Series Benefits

Best-in-Class Performance Features:

  • Reinforced narrow silhouette frame and sash profiles make a statement of style 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.

Thermal Performance Comparison4
Double-Hung Sliding
U-Value SHGC U-Value SHGC
Clear Glass 0.46 0.59 0.45 0.59
SolarZone 0.29 0.30 0.28 0.30
SolarZone ThermD Elite 0.27 0.21 0.27 0.21
SolarZone ThermD iE 0.27 0.30 0.27 0.30
4Whole window values are based on double-strength glass, standard 4000 Series offering with
composite reinforcements. ST and HP performance values are also available.
Air/Water/Structural Results
Air/cfm Water/psf Structural
Window World 4000 0.4 6.0 DP40

6000 Series Triple Pane

Home room with double hung windows

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 Youngstown’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.

Thermal Performance Comparison
Composite Reinforcement
U-Factor SHGC
Clear Glass 0.46 0.59
SolarZone ThermD TG2 0.22 0.26

SolarZone ThermD Elite TG2

0.22 0.19

Contact Us Today

At Window World of Pittsburgh, our passion lies in the ability to serve our customers with the highest level of service and the best replacement windows, doors and vinyl siding around. If you’re ready to get started with incorporating double hung windows into your space, contact us to schedule your complimentary in-home estimate today!

Request Your FREE In-home Estimate »

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Replacement Double Hung Windows | Window World of Pittsburgh

Customer Reviews

  • "I hired Window World for an install of three extremely large slider windows. These are windows other companies said could not be done. The windows were installed over the course of a day and a half, and the installers exceeded my expectations in every way, as did the quality of the windows! I highly recommend them to anyone!"
    - Anne F.
  • "I had two windows that I haven't used for over 30 years. One of the window panes actually blew out during a wind storm. I called Window World and Wayne was great! They were very professional, friendly, cleaned up all the mess and did a GREAT job! Thank you Window World, we will definitely go back to you when we need new replacements!"
    - Pattie D.
  • "Fantastic results, the life time warranty is what sent Window World to the top in our home. The seller explained every detail of measuring to installation to clean up. The install crew we polite and showed every step of the install. Would highly recommend to all. And the PRICE can't be beat. Thank you Window World."
    - Jeff H.