Double-Hung Windows in St. Louis

Whether you are looking to select windows for a new home, or you need to replace your current windows, double-hung windows from Window World are a classic option that comes in a variety of styles and sizes.

Our Most Popular Replacement Window
Add Classic Style To Your Home
Product Details
Color Options

Our double-hung windows are designed to look good and provide energy savings for years to come. They’re also backed by our Limited Lifetime Warranty for additional peace of mind. More features:

  • Convenient operation enhances this attractive, traditional window style
  • Tilt-out upper and lower sashes make these windows easy to clean
  • Many size and design options make this a versatile choice

Double-Hung window colors to meet your specific taste.

Color Options

*Color options may vary based on package, dimensions and more.


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Double-Hung Series

4000 Series Double-Hung

4000 Series windows from Window World are beautiful and durable. The beveled mainframe design is slim and refined, creating a sleek look. Made from virgin vinyl, our frames never chip, peel, crack, or warp. The cherry on top? They’re low-maintenance thanks to tilt-in sashes that make cleaning a breeze.

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.


  • Ensure thermal efficiency with multi-chambered sash & mainframe
  • The hidden screen track produces clean lines and add beauty
  • Beautiful beveled exterior profile gives windows a clean, elegant look
  • Reinforced narrow silhouette frame and sash profiles make a statement of style with their low-profile design.
  • 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.
  • The smooth and uniform, true sloped sill quickly directs water runoff without the use of weep holes, keeping the window exterior clean and attractive.

6000 Series Double-Hung

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.

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 of St. Louis’s impressive Lifetime Limited Warranty for complete peace-of-mind.


  • Triple-pane insulated glass with Low-E and Argon
  • Foam enhanced mainframe
  • Airtight insulating chambers help reduce conduction and cut high energy bills
  • Quad 4 weatherstripping at the header adds even more protection from the elements
  • Full or half fiberglass screens provide ventilation while keeping insects out
  • Recessed locks

What is energy efficiency?

Energy-Efficient Windows

Energy-efficient windows reduce or eliminate drafts and solar heat gain, which prevents outside temperatures from impacting your home. Learn more about the benefits of energy-efficient windows and how much you could save by making the switch.

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Your Questions, Answered

Double-Hung Windows FAQs

What are double-hung windows?

Both the top and bottom panes of double-hung windows move up and down, operating independently from each other.

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.

Are double-hung windows energy efficient?

Yes! Save on heating and cooling costs year-round with the SolarZone™ TG2 Elite™ insulated glass package. In warm weather, it will reduce solar heat accumulation, minimize interior glare and lower interior glass temperature. In cool temps, it delivers outstanding thermal performance and warmer interior glass surfaces to maintain comfort in the winter. This package also meets all ENERGY STAR requirements.

What are the size dimensions of double-hung windows?

Our double-hung windows are built to fit your home’s specific measurements. Contact us to learn size specifications of our different models.

Does this window style provide long-lasting durability?

Yes! When extreme wind and weather hit, our proprietary sill interlock stands strong. Traditional slope 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.

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What Your Neighbors Are Saying

They were fast and efficient! A beautiful job and all the guys were respectful and cleaned up as they went. Windows are great. I would highly recommend this company!
Frank D.
This is the third time we have used Window World for replacement windows in our home. The installers provided by WW have always been very good. They work quickly and efficiently doing their best to avoid issues for the homeowner. We will be contacting WW again next year to replace more windows. They have earned our business.
Jim D.
The workmanship and quality of the windows is just amazing. The crew was truly professional and of the charts with knowledge of their product. The whole process was just amazing and was done with no pressure from the salesman and his service was awesome.
Jim M.

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