Our most popular window, a Double Hung window is defined as having a horizontal meeting/lockrail and two operable sashes that can be raised or lowered, independent of one another, for ventilation. Because the sashes tilt-in for easy cleaning, Jantek’s Double Hung windows are a good choice in multi-level homes.

Jantek EnergyMiser Double Hung windows come standard with our proprietary  EnergyMiser Technology, including EnerCore sashes, which yields a R6 Insulation Value and a .18 U-Factor.

Check out the Product Specifications and watch our demonstration video on this page to learn more about our EnergyMiser Double Hung windows. Feel free to stop by our Medford, NJ Factory and Showroom, Monday through Friday - 9:00am to 5:00pm.

We design, manufacture, and install all our windows and patio doors. Our staff includes a team of professional window installers who are expertly trained, insured, and will be respectful of your home.

Jantek has been providing quality replacement windows since 1995. Both our products and work are backed by a transferrable, limited warranty.

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