EnergyMiser™ DOUBLE-HUNG

Serving your Replacement Window and Patio Door needs in Central,
Southern NJ & surrounding areas for over 25 years

EnergyMiser™ Double-Hung

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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Product Specifications

Standard Features:

  • Custom manufactured to your specifications or job requirements.
  • EnergyMiser triple pane, Soft Coat, Low-E glass yields a R6 Insulation value and a .18 U-Factor.
  • EnerCore thermally bonded, structured insulation sashes. 
  • Fusion welded, multi-chambered 3 ¼” vinyl master frames.
  • Fusion welded, vinyl sash frames.
  • DuraSeal Warm Edge Spacer.
  • Sashes tilt-in, for easy cleaning.
  • Stainless steel constant force balances never need adjustment.
  • Aluminum frame screen with polypropylene mesh. 
  • Slope Sill Design with interlock for superior structural integrity and weather resistance.
  • RoBo-Sync™ Technology allows easy Locking, Unlocking, and Retraction of Tilt Latches with One Control Point.


Download or View Product Sheet

Download or View Independent Test Results


Download or View Independent Test Results

Are you ready for a free no-hassle TeleEstimate/Virtual Estimate for a price on your new windows?