Product Catalog

Markey LLC offers several high-quality lines of windows for New Jersey Homes and Businesses. Custom made OKNA Casement, Enviro-Star, Insul-Tec and Precision Weld series of windows offer the perfect fit every time. View our window catalog below.

CASEMENT - 700 SERIES

  • Fully welded beveled frame and sash for exceptional strength.
  • Triple weatherstripping to prevent air, water, dust and noise infiltration.
  • High performance operators for corrosion resistance, effortless operation, and easy adjustability.
  • Heatseal® warm edge spacer system for excellent thermal efficiency and drastic reduction in the possibility of condensation on the inside of your window.
  • Full fiberglass mesh screen.

Enviro-Star - 800 Series

Enviro Star is our high-end Replacement Window. The Enviro-Star combines superb craftsmanship with an old world look and feel. This Series offers a myriad of glass and structural options to seamlessly blend with any décor while providing the utmost in energy efficiency. Since all OKNA products are custom-made, you can be sure of a perfect fit every time.

Earn $100 for your Referral

Markey Window Replacement will give you a $100 Gift Card for a referral that becomes a customer.

Insul-Tec 500 Series – Double Hung

  • Full 3¼” Depth Welded Mainframe with beveled colonial exterior features curves that are not only beautiful, but also allow for maximum weld surface resulting in strength and years of long lasting performance.
  • Heatseal® warm edge spacer system for excellent thermal efficiency and drastic reduction in the possibility of condensation on the inside of the window.
  • Full integral interlock with double weather-stripping.
  • The optional Auto-Lock features an exclusive automatic locking system which is easy to engage.
  • Heavy gauge fully extruded handles on both sashes.
  • Fiberglass mesh half screens standard on all windows.
  • Optional locking screen provides an additional safety measure.
  • Available in Replacement and New Construction applications.

Precision Weld - 400 Series

The OKNA Precision Weld is an excellent value when making the choice to replace windows in your home. The Precision Weld offers clean, modern lines, high-quality craftsmanship, and many options to beautify your home while making it energy efficient. Since all OKNA products are custom-made, you can be sure of a perfect fit which translates to savings on time and labor during installation.